任务型读写
Think of life as a game in which you are playing with five balls in the air. You name them work, family, health, friends and spirit (精神) and you keep all of them in the air. You will soon understand that work is a rubber ball. If you drop it, it will bounce (弹跳) back.
But the other four balls, family, health, friends and spirit, are made of glass. If you drop one of these, they will be broken. They will never be the same. You must understand that and try to have balance in your life. How?
Don't look down on your worth by comparing yourself with others. It is because we are different and each of us is special.
Don't let other people set goals for you. Only know what is best for yourself.
Don't give up when you still have something to give. (3)Nothing is really over until the moment you stop trying.
Don't be afraid to fight difficulties. It is by taking chances that we learn how to be brave.
Don't shut love out of your life by saying it's impossible. (4) The quickest way to receive love is to give it; the fastest way to lose love is to hold it too tightly (紧紧地) ; the best way tokeep love is to give it wings.
Don't run through life so fast that you forget not only where you've been, but also where you are going.
Don't be afraid to learn. Knowledge is weightless. It's a treasure (珍宝) you can always carry easily.
Don't use time or words carelessly. You can't get them back.
Life is not a competition, but a trip, step by step.
Yesterday is history, tomorrow is a mystery (秘密), and today is a gift: that's why we call it “he present”.
A)根据短文内容简要回答问题。 What are the five balls of life?
Please say something about knowledge according to the passage·
B)将短文中画线的两个句子译成汉语。_____________________
____________________
C)请给短文拟一个适当的标题。 ____________________
Liu Jichen believes good behavior（表现）should be encouraged so that it will become a good habit.The young man has succeeded in making millions of people form the habit of clearing their plates as part of the nation's efforts to cut down food waste.
Liu Jichen and his team have developed a WeChat mini﹣program called "Clear Your Plate".After a meal，users can open the mini﹣program and take a picture of （A） theirempty plates.Once the picture is recognized（被识别）by the AI（人工智能），users can collect points. （B） They can be used to buy products or give away meals to children and old people in need.
Bi Haibao is a 26﹣year﹣old teacher from a college in Qingdao，Shandong Province.He was one of the program's first users before it went popular on campus（校园）.He led a student team to join in a competition for the "empty plate" campaign（活动）.The result is good，as many students mentioned their awareness（意识）of food saving had improved.Students who use the AI program might gradually form good habits of saving food.
Liu，who believes technology can help with "Clear Your Plate"，said refusing food waste should be a lifestyle choice for everyone. （C） " We make our efforts to encourage young people to save food ， " he said.
（1）把（B）处画线句子翻译成汉语。
（2）把（C）处画线句子翻译成汉语。
（3）写出（A）处画线单词指代的内容。
（4）"光盘"后，用户怎样才能获得积分？请从文中找出两个动词短语。
（5）找出或概括能体现本文大意的句子。
Pigs are misunderstood （误解）.Some people think of them as lazy and stupid.Did you know that pigs are very smart？Pigs are smarter than most pets and wild animals.（3） Experts say that pigs are easier to train than dogs and cats.Would you want a pig for a pet ？
Keeping a pet pig is fun，but it is work.Pigs like to go for walks like a dog，Would you like to walk a pig down your street？They can be trained to do tricks，and they like to be petted.They usually get along with other pets.
Pet pigs must be kept on a diet （节食）.They like to eat like hogs （肉猪）!（4） An adult pet pig should not weigh more than 150 pounds.But many weigh up to 300 pounds because of overfeeding.
Pigs are some of the cleanest animals on the earth.They can learn to use a little like a cat.Many live in houses and apartments.But they can get in the way.
Pigs have a good sense of smell.They help find truffles（松露）in the forests.These plants sell for high prices.So the pigs are valued for their work.
Besides pork （meat from pigs），pigs provide us with many useful products.Pig hair is used to make hairbrushes and furniture（家具）.Some of pig parts can be used to help sick people.
Pigs are found in every part of the world.They serve many useful purposes.They can work as guards like dogs.In the United States，two pigs were kept to guard the gate on the farm，which worked really well.
A.根据短文内容简要回答问题。
（1）According to the passage，what good qualities do pigs have？
（2）Choose one good quality of pigs and give some examples to prove（证明）it.
B.将短文中划线的句子译成汉语。
（3）
（4）
C.请给短文拟一个适当的英文标题。
（5）
The human brain weighs about 1.4 kilograms，but it can hold much more information than most computers.However，there is another difference between human brains and computers.Computers don't forget information they are given，but humans often do.No one remembers everything，and luckily we don't usually have to.But everyone can improve their memories if they want to.Here are some suggestions.
Try to use new information immediately.For example，if you meet someone who says "Hi!I'm Carlos"，don't just say "hello".Repeat the person's name and say "Hello，Carlos".
Break a big number into small parts.For example，it's hard to remember 109244153.But if you break it into three parts﹣109/244/153，it will become easier.
Write down what you need to remember over and over again.This will help you keep it in mind longer，especially when memorizing formulas or facts.
Always review information.If you bring what you've learned back to your mind，it'll become easier to remember.For example，before you go to sleep，it's a good idea to review the new things you've learned that day.
Discuss things with friends.It is always easier to remember things through discussions.You can have a discussion about what's right or wrong，and it will lead to the right answer.
All of the suggestions are helpful.If you follow them，you are certain to improve your memory.
（1）How many suggestions are mentioned in the passage？
| A． |
Three. |
| B． |
Four. |
| C． |
Five. |
| D． |
Six. |
（2）Which of the following statements is NOT true？
| A． |
People can remember all information in daily life. |
| B． |
Computers can remember all given information. |
| C． |
People can improve their memories if they want to. |
| D． |
Human brains can hold more information than most computers. |
（3）According to the passage，what should you do when you have trouble in memorizing the formulas？
| A． |
Store them in a computer. |
| B． |
Break them into small parts. |
| C． |
Write them down over and over again. |
| D． |
Discuss them with friends. |
（4）What does the underlined word "them" in the last paragraph refer to（指代）？
| A． |
The information. |
| B． |
The computers. |
| C． |
What you've learned. |
| D． |
The suggestions. |
（5）The best title of the passage is .
| A． |
Discussing Can Help You Remember Things |
| B． |
The Suggestions for Improving Your Memory |
| C． |
Reviewing Can Help You Improve Your Memory |
| D． |
The Importance of Improving Your Memory |
To become a better person，we should go to school every day.So how can we become powerful and start changes in our own life？Perhaps we can get some tips from the US First Lady Michelle Obama.During her visit to China，from March 20–26，Mrs.Obama shared her views on education with students.
The first lady encouraged Chinese students to aim high and get a good education.In Chengdu No.7 High School，she told students that having poor roots doesn't matter A long as you work hard.
Mrs.Obama said her family was not rich.Like many Chinese students，her parents had big dreams for her.She felt the weight of her parents' sacrifices （牺牲） on her shoulders and worked hard to make them proud.
Persevering was not easy，though.Sometimes she had to wake up at 4：30 a.m.and study late into the night. "But whenever I got tired or discouraged，I would remember something my mother always told me，" she said， "A good education is something that ①take，no，from，can，one，away，you."
Mrs.Obama also encourages Chinese students to study abroad. "As the Chinese B goes，
②It is better to travel 10，000 miles than to read 10，000 books，" she said. "③在学校取得好成绩是不够的。It's also important to have real experience with languages，cultures and societies different from your own， " she noted.
"Studying abroad could also gain future international relations. ④It could help young people from different country work together to deal with problems such as climate change，" Mrs.Obama said.
任务一：（1）请将文中A，B 空白处分别填入一个恰当的单词，使句子意思完整正确。
A. B.
任务二：（2）请将文中①处斜体单词连成句子。
A good education is something that .
任务三：（3）请将文中②处划线句子译成汉语。
任务四：（4）请将文中③处的汉语译成英语。
任务五：（5）文中④处划线句子中有一处错误，请找出并改在横线上。（每空一词）
改为
Flamenco is very popular in southern Spain.It begins with guitar music and clapping（击掌）and then dancers join the performance.Sometimes a woman dances alone and sometimes she dances with a man.The woman always wears a long，colorful dress.She moves her arms and hands slowly but her feet move in fast difficult steps.The man often wears black.Both dancers click their shoes on the floor when they dance around each other.
Cossack dances are from Russia and Ukraine.They are very energetic — some are more like gymnastics than dancing!Dancers have to be very fit because they jump very high and kick their legs up and down.They often jump over swords（剑）.The movements are similar to traditional Cossack activities，for example，sword fighting and getting on and off horses.
Limbo dancing is first from West Africa but today it is an important part of celebrations in the Caribbean.Young people have to dance under a pole（杆）.The pole is often on fire and the dancer mustn't touch it!After a successful "limbo"，they put the pole lower and do it again.Some dancers can dance under a pole just twenty centimeters off the ground!
Mask（面具）dances are important for the Dogon people in Mali.Each village makes different masks.They are often huge and colorful.There are masks of people，monsters or local animals like crocodiles and monkeys.Mask dancers are always men and they dance to the sound of drums for hours after the death of a person in the village.Today，Dogon villagers also perform the dances for tourists.
（1）What do we know about flamenco dancing？
A.Dancers begin performing before the guitar music starts.
B.A woman dancer often wears a long black dress.
C.A woman dancer moves her hands and feet at different speeds.
D.Dancers clap loudly while moving around each other.
（2）What does the underlined word "gymnastics " in Paragraph 2 refer to？
A.A play.
B.A sport.
C.A celebration.
D.A show.
（3）Which of the following is limbo dancing？
A.
B.
C.
D.
（4）What is the best title for the text？
A.Dance Jumps and Moves
B.Dances for Different Ages
C.Dance Music and Clothing
D.Dances from Around the World
Do video games do harm to our children？Today，many children spend a lot of their free time playing games on the Internet.In the UK，99%of kids aged8 to 15 play video games every week.This information tells us that the benefits and dangers of video games must be carefully considered.
For many people，video games are fun.They have bright lights，funny cartoons and exciting stories.Everywhere you look，you can see children playing these games.They play on buses and trains，in restaurants and even at school.
Video games are educational too.They make kids think in a creative way and theyhave to move their hands and eyes quickly.This can improve the way that a child's brain works.What's more，video games make children use their imagination.The player has to do many creative things，like drawing，telling stories and building things.Video games are also a good way to teach children about technology because they can learn how computers and other devices work while they play.
However，a recent study suggests that video games can also be bad for children.First，children can download many games for free.This means that parents often don't know if their children are playing violent or scary games.Second，many children spend too much time playing games on computers and this can lead to health problems.Third，if children spend too much time playing games instead of doing homework，they can have problems at school and get bad grades.Finally，video games can affect children's social skills.If children spend too much time playing video games by themselves，they might not learn how to play with their friends.
In conclusion，it seems clear that video games have some advantages and some disadvantages.It is up to parents to know what games their children are playing and how much time they spend on them.Parents should also make sure their children get enough exercise and spend time with other children.
（1）The underlined word "they" in Paragraph 3 refers to .
| A． |
kids |
| B． |
computers |
| C． |
video games |
| D． |
playmates |
（2）Which disadvantages of video games are mentioned in the passage？
a.Result in bad grades.
b.Make kids feel bored.
c.Lead to health problems.
d.Affect children's social skills.
e.Cause problems between parents and kids.
| A． |
c，d，e |
| B． |
b，d，e |
| C． |
a，c，d |
| D． |
a，b，c |
（3）In the writer's opinion， should play an important role in video games play for kids.
| A． |
family |
| B． |
society |
| C． |
schools |
| D． |
game companies |
（4）What's the structure of the passage？
| A． |
|
| B． |
|
| C． |
|
| D． |
|
If you're riding in a "lift" or an "elevator"，or eating "chips" versus "fries"，these words all depend on whether you're in the UK or US.Although the，both speak English，there are many phrases and idioms that differ between the cultures.
For example，have you ever just not been in the mood to go out with friends？In the US you might say you don't feel like doing that activity，but in the UK you would say， "I can't be asked. "
Maybe you're about to take a test and feel a little anxious.In the US，you might say you are nervous，but in the UK，one could say they are "having kittens".If someone in the UK were feeling they were under pressure，they might say they are '"under the cosh".
Even many native English speakers are often confused by the meanings of these terms.Stephanie Stone，a US native，recalls her experience studying in the UK. "People would ask， 'You all right？' For months I thought I looked unwell until I realized it just meant 'How's it going？ ".
If you want to know more about US and UK idioms，you'd better " have a butcher's hook" at some phrase books.It can be quite interesting to find，the equivalent（对应的）phrases in your own language.
（1）What would you say in America if you are unwilling to go out with friends？
| A． |
I can't be asked. |
| B． |
I'm under the cosh. |
| C． |
I don't feel like doing that. |
（2）How might Stephanie Stone feel at first when asked 'You all right？' in the UK？
| A． |
Surprised. |
| B． |
Pleased. |
| C． |
Tired. |
（3）What does the phrase " have a butcher's hook" in the last paragraph mean？
| A． |
Get many skills. |
| B． |
Have a look. |
| C． |
Find some words. |
（4）What is the text mainly about？
| A． |
The meanings of phrases and idioms in the UK and US. |
| B． |
The history of phrases and idioms in the UK and US. |
| C． |
The differences of phrases and idioms in the UK and US. |
①Animal behavior（行为）is an interesting and attractive study.Scientists research the ways animals use to look for food.They study how animals protect themselves from their predators，and which animals kill other animals for food.All of this helps us understand how useful animals can be.
②Each country or culture raises some animals for food.In the United States，people mainly eat meat from cows，chickens and pigs.In other countries，people might raise sheep or buffalo for meat.These differences come in part from weather and other environmental conditions.People around the world eat all kinds of fish and shellfish from oceans and rivers.In some countries，people don't always choose some animal groups，such as dogs，for food while in other countries such animals may become people's favorite food.
③In West Africa，animals provide humans with more than food.They have been helping people do daily work for thousands of years.Horses，oxen，and other work animals pull heavy things.Elephants；camels；and other animals carry people and things from place to place.Carrier pigeons （信鸽）have been used to send messages.
④People also receive health benefits'（利益）from animals.For example，dogs and cats can help calm people down.This is helpful for people fighting illnesses.Animals can also reduce stress，helping people to draw their attention to learning new information，such as reading.When people are walking their dogs or horses，it encourages exercise.
⑤Animals and humans share space on Earth，so keeping a healthy relationship with animals，around us is in our best interest.
（1）What is the passage mainly about？
| A． |
Where animals live and how they look for food. |
| B． |
The relationship between animals and humans. |
| C． |
The different things animals can do in different countries. |
| D． |
What humans should do when communicating with animals. |
（2）The underlined word "predators" in Paragraph l probably means .
| A． |
neighbours |
| B． |
friends |
| C． |
children |
| D． |
enemies |
（3）Which of the following is TRUE according to the passage？
| A． |
People around the world eat all kinds of fish. |
| B． |
Horses are helpful for people fighting illnesses. |
| C． |
Elephants encourage humans to do more exercise. |
| D． |
Africans mainly eat meat from cows，chickens and pigs. |
（4）Which of the following is the structure（结构）of the passage？
| A． |
|
B． |
|
| C． |
|
D． |
|
Historically，most cars have run on gasoline（汽油），but that may change in the future：cars can also run on other liquid fuels（液体燃料）and electricity.
Gasoline is from oil.The energy in gasoline comes from hydrocarbons（碳氢化合物）.Gasoline provides great power for cars.However，it causes environmental problems，like air pollution and temperature rise.So gasoline can't be the best fuel.
Another choice is electricity.Electricity cars can be as efficient（效能好的）as cars using gasoline，And they produce less pollution.But electric cars themselves are more expensive.Good news is that the cost has been lower and there are more and more places for the cars to get electricity ever since 2010.
The other choices are other liquid fuels.Many of these can be stored in the same places as gasoline，and used in the same cars.They can also be friendly to the environment.
One way to make such fuels is to get CO 2from the air and put it in water.Through chemical reaction，hydrocarbons can be created.However，these fuels take up more space.
Another way is to make such fuels from plants which take in carbon from the air.These fuels are greener in use.But not all of them can be as efficient as gasoline.
For a fuel to be the best，people have to be able to afford it.Unluckily，almost every green technology is more expensive than that of using gasoline.Governments and car producers are doing everything they car to cut down the costs.In the end，the best fuel will be both affordable for car users and green for our planet.
（1）Gasoline provides cars with .
| A． |
great power |
| B． |
fresh air |
| C． |
clean water |
| D． |
enough space |
（2）According to Paragraph 3，we can infer that electric cars .
| A． |
produce less pollution |
| B． |
will become more and more expensive |
| C． |
will become more popular |
| D． |
are more efficient than those using gasoline |
（3）The structure of the passage may be .
| A． |
|
| B． |
|
| C． |
|
| D． |
|
（4）What would be the best title for the passage？
| A． |
How Do We Protect Our Planet？ |
| B． |
What Are the Fuels' Differences？ |
| C． |
What Is the Best Fuel for Cars？ |
| D． |
How Do We Make Fuels for Cars？ |
2021 is the year of the ox（牛）.In March，a set of stamps about the famous Tang Dynasty painting，Five Oxen，came out. Itallows more people to know better the great art of ancient China，as well as the importance of agriculture（农业）in history.
Han Huang （723﹣787）was the painter of Five Oxen.He worked as a government official in the Tang Dynasty.His paintings were loved by many because the animals he painted were so alive.Unluckily，Five Oxen is probably his only painting left.
Five Oxen is one of the best animal paintings in China's art history.In the painting，the five oxen are in a line.They are of different colors and shapes.And each has a different appearance（形态），walking or standing，holding their heads high or low.With lively expressions and bright eyes，the oxen show the spirit of doing hard work without complaints（抱怨）.As the name suggests， ▲.It makes people focus（关注）on the oxen themselves.
The painting was missing in 1900.Luckily，it returned to China during the early 1950s.However，it was terribly broken with many holes in it.Great efforts were made to save it.Now Five Oxen，probably the oldest Chinese painting on paper，is kept with care in the Palace Museum in Beijing.
（1）The underlined word " It" in Paragraph 1 refers to "
| A． |
The year of the ox |
| B． |
The set of stamps |
| C． |
The Tang Dynasty |
| D． |
The painting Five Oxen |
（2）Han Huang's paintings were loved by many because the animals he painted were so .
| A． |
alive |
| B． |
bright |
| C． |
lucky |
| D． |
colorful |
（3）Which of the following sentences can be put in the ▲？
| A． |
the ox is very popular in the Tang Dynasty |
| B． |
the ox is a symbol of Chinese traditional culture |
| C． |
the painting is of the five oxen with no special background |
| D． |
the painting wants to tell people to work hard and creatively |
（4）This passage mainly wants to tell us that .
| A． |
Five Oxen is Han's only painting left |
| B． |
oxen have different colors and shapes |
| C． |
oxen are very hard﹣working animals |
| D． |
Five Oxen is valuable and meaningful |
Governments around the world are pushing for an end to plastic straws （吸管） and bags.More and more businesses are turning to paper products as a choice.Paper is considered by many to be better than plastic.However，it，too，is harmful to the environment.
Firstly，paper bags and straws are made from trees.Trees，as you know，can reduce （减少） carbon dioxide （二氧化碳） levels in the atmosphere. Theycan slow down climate （气候） change.An increase in the use of paper bags can cause more acts of cutting down trees.
Secondly，products made from paper require more energy and water.About 10 percent more energy and four times as much water is used to produce a paper bag than a plastic one.You might say that we can use recycled paper to save that energy and water.This seems to be a good idea.However，it takes even more energy and water to go through the recycling process than to make a brand new paper bag.Products made from recycled paper are also often short﹣lived.
Thirdly，paper products are heavier than plastic ones.That means they require more oil to transport.Seven trucks are needed to transport two million paper bags，while only one truck is needed to transport the same number of plastic bags.The increased weight also leads to a large amount of waste once the bags are thrown away.
Paper products are actually a lose﹣lose for both the environment and businesses.They are more expensive than plastic products.A paper straw costs about 5 to 12 cents，while a plastic one usually costs only about 2 cents.
The most environment﹣friendly solution is to avoid single﹣use products altogether.Products like glass water bottles and steel straws can be used over and over again.They are much better than either paper products or plastic products.Through increasing the use of these products，you can greatly reduce your throwaway waste and truly make our Earth a greener place!
（1）What does the underlined word " They" in Paragraph 2 refer to？
| A． |
Plastic products. |
| B． |
Trees. |
| C． |
Paper products. |
| D． |
Businesses. |
（2）Compared with transporting two million plastic bags，transporting two million paper bags requires .
| A． |
fewer trucks |
| B． |
six more trucks |
| C． |
twice as many trucks |
| D． |
the same number of trucks |
（3）The writer compared the price of a paper straw and that of a plastic straw to show that .
| A． |
paper products are not a good choice for businesses |
| B． |
it is difficult for all businesses to turn to paper products |
| C． |
most people believe paper products are better than plastic ones |
| D． |
paper products are as harmful to the environment as plastic ones |
（4）By writing this article，the writer mainly wanted to .
①compare plastic products with paper ones
②correct people's wrong ideas about paper products
③suggest people use reusable products like steel straws
④list the advantages and disadvantages of using paper products
| A． |
①② |
| B． |
③④ |
| C． |
①④ |
| D． |
②③ |
Have you ever imagined the life in space？The following will show you the astronauts' daily life.
• Eating in space
If you go camping for more than a week with some friends，you will make sure you have plenty of foods and keep them properly.At the end of your camping trip，you would deal with your rubbish properly before the ride home.
Astronauts almost do the same thing when they go to space.Preparation changes with the food type.Some foods can be eaten in their natural forms，such as chocolate cakes and fruits.Other foods require adding water，such as cheese.Of course，an oven is provided at the space station to heat the food.But there are no fridges，so space food must be kept properly.
• Sleeping in space
After a long day at work，nothing is better than a good night's sleep!Just like on the earth，in space astronauts go to bed at a certain time，then get up and prepare for work again.When going to sleep，they have to attachthemselves，so they don't float （漂浮） around or hit their bodies against something.They usually use sleeping bags located in small crew cabins （乘员舱）.Each crew cabin is just big enough for one person.Generally，astronauts have an eight﹣hour sleep each day when they finish their task.
• Doing sports in space
Exercise is an important part of every astronaut's daily life to prevent muscle loss （肌肉萎缩）.Usually，astronauts exercise two hours every day.Lifting 200 pounds on the earth may be a lot of work.But lifting that same object in space would be much easier.That means the things for exercise need to be specially designed，so astronauts can receive the exercise needed.
Living in space is not just all work and no play.Astronauts have fun，too.They like to look out the window and play with their food.Fun plays an important role in the quality of their life.
（1）The writer starts to explain eating in space by .
| A． |
telling a story |
| B． |
asking a question |
| C． |
giving an example |
| D． |
comparing two facts |
（2）What does the underlined word " attach" in Paragraph 4 mean？
| A． |
Tie. |
| B． |
Hide. |
| C． |
Catch. |
| D． |
Carry. |
（3）It is much easier for people in space than on the earth.
| A． |
to fall asleep |
| B． |
to lift heavy things |
| C． |
to prevent muscle loss |
| D． |
to eat cold food |
（4）In which part of a newspaper can we read the passage？
A.CULTURE.
B.SOCIETY.
C.SCIENCE.
D.HISTORY.
The natural world is colorful with humans，plants and animals showing different colors.
Human skin can be many different colors and it changes.with the sun，our feelings or our health for example.This is because of pigments（色素），which reflect light and make what the eye sees as colors.So，when we feel excited or angry，our heart can send more blood to the face and the pigments in the skin become red.This is why we have the expression that someone. "sees red"when they are angry.
Plants also have pigments.Color is important for them to live on.The bright colors of flowers catch the attention of insects（昆虫），which then carry their pollen（花粉）from one flower to another.Bees can see colors we cannot，and they follow these to the inside of the flower.Without bees visiting flowers in this way，many plants would die out.
Animals also use color for their own need.They protect themselves with different colors so as not to be seen by predators.The snowshoe hare for example，a type of wild rabbit，changes color with seasons for this reason.During summer it is a brown color，and in winter it is white so that it can hide in the snow.However，some animals use color as a warning to make predators stay away.Bright colors such as yellow and red are often used in this way.Nature，however，is very clever，and predators also use colors to attract（吸引）the animals they feed on..
So，we can see that there may be many different reasons and uses for colors in the natural world.Some uses of color in nature remain unknown；but one thing is for sure，color not only makes our planet beautiful but it is also necessary for our planet to live on.
（1）Paragraph 2 mainly tells us that is/are the cause that makes human skin change color.
A.feelings
B.pigments
C.Blood
D.sunshine
（2）According to Paragraph 3，plants can use to attract insects.
A.leaves
B.fruits
C.pollen
D.color
（3）The underlined word"predators""in Paragraph 4 refers to animals which .
A.hide in secret places
B.kill other animals for food
C.change color with the sun
D.protect themselves from danger
（4）What is the main purpose of the passage？
A.To describe animals' ways of life.
B.To encourage us to study color in nature.
C.To introduce the uses of colors for life on earth.
D.To explain the importance of protecting our planet.
We've all haul bad experiences with restaurants，stores or hotels.Maybe you've been to a restaurant that served terrible food.Perhaps you've been to a store that had high prices and bad service.Or maybe you've booked a hotel and found out later that the room was nothing like the advertisement（广告）.
These days，we have a better chance of slopping these unpleasant surprises.We can do this by using apps.An app is a computer program on a smartphone.You cam use apps to do almost anything.App can help you play games，get directions，talk to friends，and so on.
If you want to find information about a store or a hotel，you cam use a review app.Review apps help us evaluate（评价）service and products before we hand over our money.The idea is very simple.After you go to a restaurant or stay in a hotel，you can post a review with one of your apps.You can say anything you want.If you like a hotel that you stayed in，you can tell people that it was wonderful.If you think that the food in a certain restaurant was bad，then you can tell people not to eat there.Other people can use their app to read your reviews.
Plenty of people prefer not to use these review apps.Many of these people think that it's a waste of time to look through websites and read reviews.These people prefer to go out and decide for themselves whether or not a service is good.However，review apps are getting more and more popular every day.Some apps are for exact services.For example，trip adviser gives attention to travel，and good reader pays attention to books.There are also other larger apps that provide information for just about every service that you can think of.
（1）What does the article say about apps？
A.You can use apps for many things.
B.There are very few good apps.
C.Apps are only useful for travel.
D.Apps are very expensive to use.
（2）If you want to book a hotel，how can a review app help you？
A.It can help you write better reviews.
B.It can tell you how to use a smartphone.
C.It can tell you about the hotel before you book it.
D.It can tell you about other people who post reviews.
（3）In the third paragraph，what does the underlined word "it" refer to？
A.A restaurant.
B.A hotel.
C.A review.
D.A store.
（4）According to the article，why do some people prefer NOT to use review apps？
A.They don't trust review apps.
B.They think review apps are too hard.
C.They prefer to make their own decisions.
D.They don't know how to use review apps.
（5）Where can you probably rind the passage？
A.In a music magazine.
B.In a travel guide book.
C.In a story book.
D.In a newspaper.
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