Since NASA's Viking Task tested Martian soil back in the 1970s，we've known that Mars （火星） is covered with a desert—harmful to life as we know it.But since tasks to Mars paid attention to what lies under the desert，a different picture has started to appear.
This discovery of water under the Mars' South Pole is the result of radar echoes （雷达回波） that were picked up by an instrument on a spaceship that's been moving around Mars for 15 years.To stay liquid （液体） under the long﹣frozen desert of Mars，the researchers say this lake must have a lot of salts mixed in it.
It is very cold and saltiness would make it a very hard environment for any living thing.But the lead researcher，Professor Roberto Orosei from the Italian National Institute for Astrophysics，said it was not impossible for things to live there.
To search for life in this newly discovered lake，scientists will need to send a robot that's able to make a hole through the mile of ice covering it.But at least the teams looking for life on Mars will now know where to start their search.
正确的写"T"，错误的写"F"。
（1）NASA's Viking Task found water in the 1970s.
（2）The researchers believe there must be lots of salts in the underground lake.
（3）It's possible that there are living things in the newly discovered lake.
（4）In order to find where water is，scientists must use a robot to make a hole through the mile of ice.
On a hot day，many people like to go to the beach.Some beaches，however，are not safe for swimming.
At some beaches，there are sharks in the water.So people put out shark nets.They help stop too many sharks from getting close to the beach.Sharks can still swim under or around the net.But if they try to swim through，they will get caught.Sharks can die if they are not cut free.
Shark nets don't just catch sharks.They can catch other animals，too.They have caught dolphins，stingrays and turtles.Even a whale has been caught in a shark net.I took many people to get it free.
Some animals are not so lucky.They are killed in the nets.One day，a whale was swimming with her calf.The calf got caught in a shark net.The mother whale tried to get the calf to come with her.The calf was caught in the net.It couldn't get free.The mother had to watch it die.
Many people think shark nets should not be used.Sharks are important to the ocean.They eat sick and dead fish.They help to keep the ocean clean.Sharks are the lions and the tigers of the sea.
Some people think there are other ways to keep beach safe for people.Sharks potters are people who watch for sharks.They go to a high place.Then they can look down on the beach.If they see a shark，a siren（汽笛）will sound.They put up a white flag.Then people get out of the water.
After all，the water is a shark's home.
（1）What can we know about shark nets according to the passage？
A.They are used to keep sharks from coming near the beach.
B.People place them to catch sharks，dolphins，stingrays and turtles.
C.Sharks will be caught when they get close to them.
D.All the animals caught by them are set free.
（2）What does the underlined word "calf" mean in paragraph 4？
A.A huge whale.
B.A young whale.
C.A father whale.
D.A mother whale.
（3）What does the writer imply（暗示）about the beach safety？
A.People should keep away from beaches.
B.Everyone should work as a shark spotter.
C.It's not the best way to put out shark nets.
D.Some dangerous beaches should be shut down.
Everything is made of something.Nothing is made of nothing.
Chemistry is about the smallest things that other bigger things are made of，and what happens when theychange.The word chemistry comes from chemical，which is an example of one type of the very small things that other bigger things are made of.The words you are reading now are made of a dark liquid called ink （墨水），which is written on paper.The paper itself is made out of the chemicals that wood is made out of.Both the ink and the paper were made by different chemical processes.A chemical process is what happens when chemicals come together to make other chemicals，and therefore other things.
Cooking makes chemical changes.Your different ingredients are made of different chemicals，and when you put them together and make them hot and cook them，the chemicals change into new chemicals and the different ingredients make something new.That tomato sauce you're making is made of tomatoes，onions，garlic，salt and pepper.Those ingredients each have their own chemicals and their own flavors，but now with your sauce you've made something different，something that has its own flavor，all the ingredients mixed together，all the chemicals mixed together，something new.
You can smell the chemical changes，too，as they go up into your nose，especially when you forget about your sauce and it doesn't just cook but bums and becomes black and has a really bad flavor.You can't make it better，either，because once chemicals change，they can't be changed back again.
（1）What does the underlined word "they" in Paragraph 2 refer to？
| A． |
Chemistry. |
| B． |
Chemical. |
| C． |
The smallest things. |
| D． |
The bigger things. |
（2）What is a chemical process？
| A． |
Ink is written on paper. |
| B． |
Paper is made out of wood. |
| C． |
Everything is made of something. |
| D． |
Things mixed together produce something new. |
（3）What does Paragraph 3 mainly talk about？
| A． |
How to make tomato sauce. |
| B． |
What to use to form new things. |
| C． |
Ingredients and their own flavors. |
| D． |
Chemical changes in cooking food. |
（4）Which might be the best title for the text？
| A． |
What chemistry is like. |
| B． |
Chemistry changes everything. |
| C． |
Where the word chemistry comes from. |
| D． |
A chemical process is called chemistry. |
The 6﹣year﹣old girl，Ruby，lived in New Orleans，Louisiana..She was supposed to go to school close to her home.But all the students in that school were white.Ruby was black.School leaders didn't want to accept her，so they made Ruby take a hard exam and hoped she would fail.But Ruby was so smart that she passed the test easily and was finally allowed to go to the school.
Ruby was excited about her new school.But when she and her mom arrived on her first day，she saw a crowd of angry people shouting very cruel things at the gate.They did not want a black child to attend the school. "I had no idea what was happening， " remembered Ruby.She thought the crowd was celebrating something.
Each day.Ruby went to school with four police officers who worked for the national government to protect her.The sight of this small girl with her big bodyguards moved the artist Norman Rockwell.He created a painting of Ruby.He called it The Problem We All Live With"，It became a very famous painting.
Ruby grew up to be a civil rights activist.She worked to protect the rights given to all citizens by the government.She even went to the White House to meet President Barack Obama.They looked at Mr.Rockwell's painting.It hung outside the Oval Office.
"We should never judge a person by the color of their skin， " Ruby said. " That's the lesson I learned in first grade. "
（1）How could Ruby get the chance to go to the school？
| A． |
By meeting the president. |
| B． |
By passing a difficult exam. |
| C． |
By visiting the school leaders. |
| D． |
By asking for help from the government. |
（2）What was the crowd probably shouting at the school gate？
| A． |
No seats for black! |
| B． |
Congratulations ! |
| C． |
Let her in! |
| D． |
Welcome! |
（3）Why did Mr.Rockwell create the painting？
| A． |
To celebrate Ruby's success. |
| B． |
To present his painting skills. |
| C． |
To praise the four police officers. |
| D． |
To show the serious social problem in the US. |
（4）What lesson did Ruby learn in first grade？
| A． |
Fight for your rights. |
| B． |
Intelligence （智商）is valuable. |
| C． |
Treat people of different colors equally （平等地）. |
| D． |
Get help from the police when in trouble. |
Which country grows the most tea？The answer is India.It grows three times as much as China.Which country drinks the most tea？It's neither China nor Japan.It's Great Britain.
In the wild，tea plants may be 9 meters tall.But a plant grown for market is pruned.Pruning keeps the plant only 0.9 or 1.2 meters tall.This is an easy height for tea picking.Only the two top leaves and bud（芽）of each new shoot are picked.So to make money，tea plantations （种植园） must be huge.
In general，there are two kinds of tea：black tea and green tea.Black tea is fermented （发酵）.In the process，the tea loses nearly all of its healthy parts.Green tea is steamed （蒸） right after the leaves are picked.Green tea keeps its healthy parts.For example，it may prevent heart illness.
How did we get tea bags？The answer：by accident.Tea businessmen used to send samples（样品）in tin（锡）boxes.This was very expensive.One businessman thought of a cheaper way.He sent samples in small silk bags.Customers would open the bag.They would make tea as usual.One customer put the bag into a pot.Then he just poured hot water over it.And the tea bag was born.
Shen Nong was the first to drink tea.He was a Chinese emperor.This was about 2737 B.C.Shen drank several cups of hot water daily.One day something happened.Leaves from a wild tea tree fell into the hot water pot.The next cup was poured.The water was now colored.Shen tasted it.He liked it.He drank it all.Shen was proud of his new drink.He served it to his guests.Word spread.People thought this way：tea is good enough for the Emperor，so it must be good enough for the people.Tea became the drink of China.
（1）The writer starts the passage by .
| A． |
telling an interesting story |
| B． |
comparing some information |
| C． |
giving several useful suggestions |
（2）In Paragraph Two，the underlined word " pruned" means " " in Chinese.
| A． |
删除 |
| B． |
采摘 |
| C． |
修剪 |
（3）After reading the passage，it seems clear that .
| A． |
tea and tea bags were invented by accident |
| B． |
black tea is healthier than green tea |
| C． |
tea is better for you than any other drink |
（4）The passage mainly tells us .
| A． |
the popularity of tea bags |
| B． |
the ways of making green tea and black tea |
| C． |
the discovery and development of tea |
Have you ever imagined what life will be like in 2060？An international group of forty scientists have made some surprising predictions.They said that in the next forty years，our lives would change beyond our wildest dreams.
Firstly，humans can grow body parts themselves.Dr.Ellen Heber﹣Katz is one of the forty scientists.He says， "People will think it common that sick organs （器官） can be repaired.It's just like the way we fix a car." Damaged parts will be taken away.Scientists could use human cells （细胞） to grow new organs.New technologies like this will also help people to live longer.Within forty years，most people will be able to live up to one hundred years.
Secondly，the scientists have predicted that a machine will be invented to "read" the minds of animals.In 2060，we will be able to "talk" to animals.Scientists say that humans may first "talk" with mammals （哺乳动物） and then other vertebrates （脊椎动物） such as fish.
Our houses might also change beyond our imagination.Dr.Susan Greenfield predicts that when you enter the living room，sensors （传感器） will know you.They will turn on the lights.If you talk to the lights，they will change to the color of your choice.
But what would be the biggest breakthrough （突破） over the next forty years？A number of scientists believe it would be the discovery of aliens.NASA scientist Chris Mckay says， "We may find aliens in space and talk with them." He believes marks of alien life may even be found here on Earth.
Does life in 2060 sound cool to you？Let's wait and see what will really happen then!
（1）Which of the following is mentioned in the passage？
| A． |
In 2060，humans may be able to communicate with dogs and aliens. |
| B． |
Most people will be able to live up to two hundred years in forty years. |
| C． |
The sensors will turn off the lights after you leave the living room in 2060. |
（2）Which of the following best shows the structure of the passage？ （P1＝Paragraph 1）
| A． |
|
| B． |
|
| C． |
|
（3）The writer wrote the passage in a tone （语气）.
| A． |
scary |
| B． |
surprising |
| C． |
disappointing |
（4）What is the best title for the passage？
| A． |
Life in 2060 |
| B． |
The Biggest Breakthrough |
| C． |
How to Live Longer |
Zhu Keming never thought he would be a hero one day，but he was just that on Saturday when he saved the lives of six runners during the mountain marathon （马拉松）in Baiyin，Gansu Province，in which 21 people lost their lives.
It started off as a normal day for the 49﹣year﹣old shepherd ，who was taking care of his more than 30 sheep on the mountainside.But soon the weather was terrible，with rainfall and hail.The rain got so heavy that he couldn't see clearly and had to run into a cave where he normally went to have a rest.Soon he fell asleep in the cave after covering himself with some quilts he had stored there.
But he was awakened at 2 pm by an unusual sound that was not coming from his sheep.The sound that woke Zhu was the cry of a runner in the marathon.He was wet from head to toe and trembling because of cold.Zhu took him into the cave，lit a fire and covered the stricken （受伤的）runner with his quilts.
Zhu said that there were soon five runners huddling （挤作一团）in the cave，and he then decided to go outside to try to attract the attention of rescuers （救援者）.When he risked coming out of the cave，he found another stricken runner lying on the ground in bad condition.Then the other runners came out of the cave to give a hand.Zhu and the six runners remained huddled around the fire in his cave until 7 pm，when the rescue team arrived.
" I just did what I had to when I saw that these people were in danger.I think everyone would do the same thing in such a situation， "Zhu said to Beijing News.
Luo Chongchuan，the village head of Changsheng，where Zhu and his family live，said that the shepherd is a warm﹣hearted person who often helps his villagers.
（1）What does the underlined word "shepherd" in Paragraph 2 mean in Chinese？
| A． |
牧羊人. |
| B． |
指导者. |
| C． |
国王. |
（2）What can we know about Zhu Keming from the passage？
| A． |
Zhu Keming is the head of his village. |
| B． |
Zhu Keming is a warm﹣hearted and helpful person. |
| C． |
Zhu Keming saved six runners on a Saturday morning. |
（3）What's the best title for the passage？
| A． |
Shepherd saved six stricken runners. |
| B． |
21 runners lost their lives in Baiyin. |
| C． |
How to realize our hero dreams？ |
（4）Where does this passage probably come from？
| A． |
A guide book. |
| B． |
A website. |
| C． |
A science book. |
Think about what you like to wear on the weekend.There's a good chance that you like to put on a pair of blue jeans.At any moment，about half of the world's population is wearing jeans.But according to a new study，our love for jeans may be bad for Earth.Denim （牛仔布）might be putting some sea animals in danger.
Every time we wash our jeans，tiny bits of denim will flow out of our washing machines，down into the world's rivers，lakes and oceans.
You might wonder：Isn't denim made of cotton，a natural material？How can it become a danger to nature？Well，in the process of making jeans，denim is treated with many types of man﹣made chemicals.Some improve its durability （耐用性）and feel；others give jeans their blue color.
Scientists studied the Great Lakes in America and the Arctic Ocean in northern Canada.They found denim waste in all of the samples （样本）they had collected.It is feared that the harmful chemicals in denim have spread far and wide.Scientists aren't yet sure how these chemicals might harm animals.
In the study，the scientists also washed jeans to see how many bits of denim each pair would drop per wash.The answer was frightening：About 50，000.Not all of them make their way into the environment.Wastewater treatment plants hold back 83 to 99 percent of them.This may sound pretty good.However，one percent of 50，000 bits are still 500 per wash.Now think about the number of jeans around the world and the times each of them gets washed.As a result，a large amount of denim waste still gets into the environment.
Does this mean we shouldn't wear jeans？Probably not" We need to buy fewer jeans and only wash them when we truly need to do it，" says Sam Athey，one of the scientists. " You don't need to wash your jeans after having worn them only a couple of times. "
（1）What influence might denim have on sea animals？
| A． |
It might do harm to some sea animals. |
| B． |
It has no influence on sea animals. |
| C． |
It is good to all the sea animals. |
（2）Why do people add man﹣made chemicals when making jeans？
①To save the materials and make more money.
②To improve denim's durability and feel.
③To make jeans blue.
| A． |
①② |
| B． |
①③ |
| C． |
②③ |
（3）How many bits of denim might get into the environment every year？
| A． |
Five hundred. |
| B． |
Fifty thousand. |
| C． |
Too many to count. |
（4）What should we do according to Sam Athey's words？
| A． |
We are not supposed to wear jeans. |
| B． |
We need to wash our jeans every day. |
| C． |
We should buy fewer jeans and wash them fewer times. |
Like most kids，Landon Kenstrick，5 years old，has a favorite animal.However，his favorite animal is quite different from other kids'.He loves pangolins.
Pangolins have small heads and long，broad tails.They are toothless.They have small ears，but their hearing is good.Their sense of smell is well﹣developed，too.But their sight is poor.When they feel frightened，they roll up into a ball to protect themselves. "My favorite thing about the pangolin is the scales （鳞片）it has on its body.They look cool， "Landon said.
Landon first learned about pangolins from a TV show，Wild Kratts.Knowing that pangolins are facing the danger of dying out，Landon quickly decided to take action to protect them.He wanted to tell everyone he knew about them.On Halloween，he had his parents carve （雕刻）a pangolin into their pumpkin（南瓜）so that when people asked what it was，he could tell them all about his favorite animal.When Christmas came around，Landon had only one wish：to save the pangolins.His parents had him "adopt （领 养）" a pangolin in Landon's name.They also came up with a good idea.They helped Landon make Christmas gifts to sell to help raise money for the pangolins at a market.So far，he has raised ＄ 400.
If you think a 5﹣year﹣old boy is too young to save the pangolins，you'd be wrong.Landon told us nobody's too young to save anything.
（1）What can we know about pangolins？
| A． |
They have great sight. |
| B． |
They have good hearing. |
| C． |
They have poor sense of smell. |
（2）How do pangolins protect themselves when they are in danger？
| A． |
They take off their scales. |
| B． |
They roll up into a bait. |
| C． |
They fight with their teeth. |
（3）Why did Landon have his parents carve a pangolin into their pumpkin？
| A． |
He wanted to put protecting pangolins into action. |
| B． |
He wanted to make the pumpkin beautiful. |
| C． |
He wanted to raise more money. |
（4）What does the writer want to tell us in the last paragraph？
| A． |
A 5﹣year﹣old boy cant save pangolins. |
| B． |
Children can also save something. |
| C． |
It is wrong to save pangolins. |
When most people decide to buy food, they go to a grocery store. Grocery stores sell many different kinds of food in just one store. Some grocery stores also sell household goods such as kitchen paper, cleaning things, and diapers （尿布）. A grocery store is a convenient place to shop for the kitchen and others.
Although it is comfortable and relaxing to shop at a grocery store, some people decide to buy their food from other places like farmers' markets. At a farmers' market, local farmers sell the foods they grow to customers. The foods they sell often include fruits, vegetables, and meats. Most of these foods are freshly harvested（收获）with no man-made additions.
There are several ways in which farmers' markets are less convenient than grocery stores. For example, packed foods usually are not sold at farmers' markets. Besides, many farmers do not accept credit（信用）cards or checks （支票）as payment for their goods. What is more, most farmers' markets are only open for business once or twice each week. This makes some people not want to shop at farmers' markets, but others are willing because of the fresh and local food there.
Deciding whether to shop for food at grocery stores or at farmers' markets is a personal choice. This choice reflects a person's values about life and about food. Those who value convenience and（多样）will probably choose to shop at a grocery store. People who value freshness and enjoy supporting local farmers will probably prefer the farmers' markets. Luckily, most communities provide choices for both kinds of shoppers.
（1）According to the passage，which of the following may not be sold at a farmers' market？
| A． |
Apples. |
| B． |
Potatoes. |
| C． |
Beef. |
| D． |
Kitchen paper. |
（2）We can NOT infer（推断） from Paragraph 3.
| A． |
grocery stores sell packed foods |
| B． |
people can use credit cards as payment at grocery stores |
| C． |
grocery stores sell fresh and local food with no man﹣made additions |
| D． |
grocery stores are open for business more often than farmers' market |
（3）In Paragraph 3，why does the writer mention that farmers' markets "are only open for business once or twice each week？ "
| A． |
To complain（抱怨）about the business time of farmers' markets. |
| B． |
To help readers look for a better farmers' market. |
| C． |
To explain why farmers' markets are less convenient than grocery stores. |
| D． |
To make readers believe that farmers' markets are too uncomfortable to visit. |
（4）What's the main idea of the last paragraph？
| A． |
If people want to have more choices，they'll probably prefer grocery stores. |
| B． |
Where a person decides to shop depends on his or her personal values. |
| C． |
If people want to support local farmers，they will probably prefer farmers' markets. |
| D． |
In most communities，people can choose to shop either at grocery stores or at farmers' markets. |
（5）The writer writes the article mainly to .
| A． |
compare two places where people buy food |
| B． |
explain why the smartest people shop at grocery stores |
| C． |
make readers believe that farmers' markets are better than grocery stores |
| D． |
show that people should be judged （评价）according to the places where they buy food |
It just hadn't been a very good week. On Tuesday, Sam's father lost his job. Then on Wednesday, Sam's mother announced that the rent（房租）on their apartment was going up. Now it was Friday, and Sam received an invitation from Rosa to her birthday party.
Sam knew Rosa from Adventure（冒险）Club. He knew he would enjoy Rosa's party, but he didn't want to go without a gift. What could he possibly buy her with the little bit of money he had? Sam knew he couldn't ask Mom or Dad for any money-not this week!
Later that afternoon, Sam noticed a second-hand book sale going on. He went there and had a quick look. Two books caught his eye. The first was a cookbook of Puerto Rican foods, and the second was a book about women explorers （探险家）. "Rosa would like these," Sam thought, "but would it be tacky（蹩脚的）to give her second-hand books for her birthday?"
Sam decided that a second-hand gift was better than no gift at all. Besides, Rosa supported recycling in a big way. So, she would probably like it. With his last dollar, Sam bought the books and went home. He felt a little better.
The party was on Saturday. Rosa opened all her gifts and thanked everyone for the nice things they had given her. She paused （停顿）when she opened Sam's gift, which made him wonder if she liked the books, but nothing was said.
When Sam got home, he opened his e-mail and found this note from Rosa.
Dear Sam,
Of all the gifts I received today, yours was the nicest. How did you know I would love a book about women explorers and a cookbook of Puerto Rican foods? Now I have something to read that will inspire me to follow my dream of becoming an adventurer, and I have a book that I can share with my grandmother. She is getting older and wants to be sure her granddaughter knows how to make the - wonderful foods of Puerto Rico. Thank you so much.
Love,
Rosa.
The week turned out to be a good one after all.
（1）What is the main problem in this story？
| A． |
Sam's father was out of work. |
| B． |
Sam's family would pay more rent on their apartment. |
| C． |
Sam wasn't invited to Rosa's birthday party. |
| D． |
Sam thought he didn't have enough money to buy Rosa a gift. |
（2）Which word best describes Sam？
| A． |
Brave. |
| B． |
Thoughtful（考虑周到的）. |
| C． |
Silly. |
| D． |
Mean. |
（3）Why was Rosa so happy with the cookbook？
| A． |
Her grandmother loved books about cooking. |
| B． |
She dreamed of becoming a great cook. |
| C． |
She had never tasted Puerto Rican foods before. |
| D． |
She wanted to make her grandmother happy by learning to cook Puerto Rican foods. |
（4）After reading the thank﹣you note from Rosa，Sam will most probably .
| A． |
write back to Rosa that he is glad she likes the books |
| B． |
ask Rosa to lend him the books |
| C． |
buy Rosa more books |
| D． |
learn to cook Puerto Rican foods |
（5）Which saying beat expresses the theme of this story？
| A． |
Love me，love my dog. |
| B． |
The best things in life are free. |
| C． |
It's the thought（心思）that counts（有价值）. |
| D． |
A good friend is like a mirror. |
Although it's said Van Gogh（梵高）（1853﹣1890）sold only one painting during his lifetime，different theories（理论）exist（存在）.
It is true that The Red Vineyard is the only painting sold during Van Gogh's lifetime，and that was officially（官方地）recorded and accepted by the art world.It's recorded that Van Gogh started painting at 27，and died at 37.His famous paintings were produced after he went to France in 1888，only two years before he died.So it would be clear that he did not sell many.
However，others disagree.The leading Van Gogh scholar（学者），Marc，is one of them.Though the story that Van Gogh sold just one painting still goes around，he insists（坚持说）that Van Gogh sold at least two.
Also，according to the Van Gogh Museum website，Van Gogh actually sold a number of paintings for living during his lifetime.His first money came from his uncle，who was an art dealer（经销商）.In order to help Van Gogh's career（事业），he ordered 19 paintings.And Van Gogh himself would often trade his paintings for food or art supplies（美术用品）when he was younger.
V died in July of 1890.His brother was a wise dealer and saved lots of paintings by Van Gogh.His greatest wish was to make the works more widely known and make much money.Sadly he himself died just six months later.He left a large collection of art to his wife，who "sold some of Van Gogh's works，lent as many as she could to exhibitions，and published（出版）many of Van Gogh's letters to his brother.Without her，Van Gogh would never have become as famous as he is today." After her death，her son founded the Van Gogh Museum.
（1）According to ，only one painting was sold during Van Gogh's lifetime.
| A． |
the official records |
| B． |
the Van Gogh Museum website |
| C． |
Van Gogh's brother's son |
| D． |
Van Gogh's uncle |
（2）What can we infer（推断）from Paragraph 4？
| A． |
Van Gogh's paintings were popular. |
| B． |
Van Gogh was poor then. |
| C． |
Van Gogh disliked his paintings. |
| D． |
Van Gogh's paintings were expensive. |
（3）Which statement is right according to the passage？
| A． |
Van Gogh's brother got rich by selling his paintings. |
| B． |
Van Gogh wrote many letters to his brother. |
| C． |
Van Gogh's brother died earlier than him. |
| D． |
Van Gogh's brother's wife sold all his works. |
（4）Who is the most important person to make Van Gogh so famous？
| A． |
Van Gogh himself. |
| B． |
Van Gogh's brother. |
| C． |
Van Gogh's brother's wife. |
| D． |
The leading Van Gogh scholar. |
（5）The passage is mainly about .
| A． |
whether Van Gogh sold only one painting in his life |
| B． |
how Van Gogh became famous |
| C． |
the whole life of Van Gogh |
| D． |
the family of Van Gogh |
We see humans all around us.But when was the first human seen？Early humans did not leave behind any written records.However，they left behind many paintings on the walls of the caves（洞穴）where they lived.These paintings tell about their life，and we know these early humans walked on four limbs（四肢）like apes（猿）.Also，they did not live at one place but moved from place to place in search of food and water.
Without any tools，early humans used stones，bones of animals，and sharp pieces of wood to dig，hunt and cut their food.They also used these to protect themselves from animals.Since stones were used to make tools，this age was called Stone Age.
With time going，tools made of bones and stones were replaced with metal（金属的）ones which were stronger，sharper，and long﹣lasting.Metals were also used for farming and making knives.Copper（铜）was the first metal to be used.
The first fire that early humans noticed was natural fire caused by lightning（闪电）.With fire，early humans could light up dark caves.They could keep themselves warm during cold weather and cook meat.Also the fire could drive animals away.
Early humans noticed new trees growing from the seeds（种子）that fell to the ground from the fruits.This gave them the idea that they could make their own food by planting seeds，which led to farming.With the beginning of farming，early humans began to settle down（定居）.They moved out of the caves and lived on farms and near their fields together，then the first villages came up.
Raising animals was a big event in human history that changed the life of early humans.The wild dogs were probably the first animal to be raised.As time went，goats，sheep，cows，donkeys，and horses were kept，too.This led to herding（畜牧业）.Milk，meat and wool came from these animals.
（1）Early humans' paintings don't tell us .
| A． |
when the first human appeared |
| B． |
how they walked |
| C． |
where they lived |
| D． |
how they lived |
（2）Early humans had to move around in order to .
| A． |
find more caves to live in |
| B． |
protect themselves from animals |
| C． |
look for food and water |
| D． |
make kinds of tools |
（3）Early humans used fire to .
①light up dark caves
②keep themselves warm
③cook meat
④drive animals away
⑤make knives
| A． |
①②③④ |
| B． |
①②④⑤ |
| C． |
②③④⑤ |
| D． |
①②③⑤ |
（4）Early humans were able to live in one place when .
| A． |
they could walk on two feet |
| B． |
they could use metals |
| C． |
they knew how to farm |
| D． |
they knew how to use fire |
（5）Which statement is right according to the passage？
| A． |
The first tools were made of copper. |
| B． |
The first fire noticed by early humans was caused by lightning. |
| C． |
The first villages came up before the farming appeared. |
| D． |
The first animal to be raised was sheep. |
Here at Nature Loving Kids，we know how much you want to make a positive（积极的）difference to our world!So，read on to find out how to protect our earth…
| Save energy and water! - On a fine and clear day，hang things outside to dry!This saves energy that would have been used on the dryer（烘干机）. - If you can，try cycling，walking，or using public transport to get out and about，instead of using the car. - Turn the taps（水龙头）off while brushing your teeth，and take short showers of four minutes or less! |
Be an advocate（倡导者）! - Share your knowledge with others，and help them become eco﹣heroes too!It takes lots of people working together to make changes happen - so share，share，share! |
| Reduce，reuse，recycle! - Before you throw something away，stop and think about what else it could be used for! |
Be friendly to wildlife! - Make your garden wildlife﹣friendly!You could build a bee hotel，or even create a pool. - If you own a cat that goes outdoors，put a bell around its neck so that vulnerablewildlife can hear it coming and make their escape! |
What else can you do to make the world better？
Now，get out there and save the world - you can do it!
（1）To save energy or water，you'd better .
| A． |
dry things in the sun |
| B． |
drive a car to work |
| C． |
take long showers |
| D． |
brush teeth with water running |
（2）To call on more people to work together，you should .
| A． |
save energy and water |
| B． |
be an advocate |
| C． |
reduce，reuse and recycle |
| D． |
be friendly to wildlife |
（3）What does the underlined word " vulnerable" mean in Chinese？
| A． |
野生的. |
| B． |
家养的. |
| C． |
强壮的. |
| D． |
弱小的. |
（4）The purpose of the passage is to .
| A． |
help the kids learn English |
| B． |
help people learn more about kids |
| C． |
teach kids how to keep animals |
| D． |
tell the kids how to protect the earth |
（5）This passage is from .
| A． |
a guidebook |
| B． |
a science book |
| C． |
a website |
| D． |
a newspaper |
Playing for Friendship
Ping pong，or table tennis，might seem like an ordinary game to play with friends or family，but it holds a special place in China﹣US relations，as it has helped both countries get along for the last 50 years.This has been called "ping pong diplomacy （乒乓外交）".
Judy Hoarfrost was just 15 years old when she was sent from the US to China as part of a nine﹣ member table tennis team.The year was 1971.and for the past 20 years，relations between China and the US had been unfriendly.
But as the team toured around China，things started warming up.Hoarfrost even got to meet then﹣Premier Zhou Enlai. "The most unforgettable moment was Zhou shaking hands with me and looking into my eyes，" Hoarfrost told China Daily. "You have opened a new page in China﹣US relationships，" Zhou told the team.
In the years that followed the historic visit，ties between the two countries started to blossom.US president Richard Nixon would make a landmark （里程碑） visit to China in 1972，which also saw Chinese table tennis players make their own visit to the US，according to China Daily.Diplomatic relations between the US and China were fully established （建立） in 1979.
Players from both countries believed strongly in the idea of "friendship first.competition second".To this day，many of them remain friends.Hoarfrost thinks we should remember ping pong diplomacy in order "to understand the importance of people﹣to﹣ people exchanges in establishing bonds，human bonds between peoples. "
Seeing tension （紧张局面） between two of the world's biggest powers in recent years，Hoarfrost said China and the US should work together. "We have so much in common，and we need to build on what we have in common，" she added.
（1）What do we know about Hoarfrost？
| A． |
She has played table tennis for 15 years. |
| B． |
B She doesn't know what "ping pong diplomacy" is. |
| C． |
She formed her own table tennis team 20 years ago. |
| D． |
She was part of efforts to improve China US relations |
（2）What is Paragraph 3 about？
| A． |
The team's tour around China. |
| B． |
Zhou Enlai's memories of the team. |
| C． |
C Hoarfrost's meeting with Zhou Enlai. |
| D． |
The relationship between China and the US. |
（3）When were China﹣US diplomatic relations fully established？
| A． |
In 1971. |
| B． |
In 1972. |
| C． |
In 1979. |
| D． |
In 1991. |
（4）What does the underlined phrase "establishing bonds" in Paragraph 5 mean？
| A． |
Developing a relationship. |
| B． |
Holding a competition. |
| C． |
Understanding different countries. |
| D． |
Understanding the spirit of sportsmanship. |
（5）According to the passage，what might Hoarfrost agree with？
| A． |
It's normal for countries to face tension. |
| B． |
B China and the US should improve their relations. |
| C． |
Playing table tennis can help people go abroad more easily. |
| D． |
China and the US should have another table tennis exchange. |
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