In the modern world , advertising is everywhere ! Some people think ___ __ ads are great . Others hate ads , saying that they make our cities and countryside look ugly. Many ads are aimed __ __ at teenagers , and some young people see more than 100 advertisements a day . It is true that some ads can be very __ __ . For instance , they can help you compare two different products so that you can buy the one you really need . They can also help you ___ ____ money. When prices are listed , you can go to the store with the lowest__ __. Ads also tell you when stores are having sales . However , some advertising can be confusing or misleading . Sometimes the words sound good but don't really tell you anything about the quality of the product . At other times , the picture in an ad__ __ a lot better than the real thing . So you have to be careful . At times , an ad can lead you to buy something you don't need at all . A. that B. what C. which
A. Impossibly. B. impolitely. C. specifically.
A. awful B. useful C. careful.
A. save B.waste. C.lend.
A. pictures. B. stores. C. prices.
A.sounds . B. looks. C. feels.
Scientists in Britain and the United States have made a new kind of enzyme（酵素）that eats plastics（塑料）． With its help， plastics can be turned into smaller parts and go away quickly． Scientists believe that， in the future， it could solve the problem of plastic pollution．
The enzyme is able to break downPET， a form of plastic． PET was first made in the 1940s and is now widely used to make plastic bottles． It can remain in the environment for many years and pollute large areas of land and water． So it has always been a headache to deal with the waste from PET and other plastics．
The researchers made the discovery（发现）while examining the structure of a natural enzyme in Japan． They found that the natural enzyme was helping to break down PET plastics． So， they decided to make small changes to the enzyme by adding some amino acids（氨基酸）． It made the natural enzyme's plastic﹣eating abilities work faster and better．
John McGeehan， one of the lead researchers， said， "We've made an improved enzyme． It's better
than he natural one． And we are trying to make more improvements to it． "He went on， "The enzyme is not harmful to humans or animals， and it is friendly to the environment． So we are considering putting it into wider use．"
The team is now trying to make the enzyme break down PET in large quantities（大量地）．"We'll see that the plastic pollution may be stopped with this technology． However， there is still a long way to go，"John McGeehan added．
（1）According to the scientists， the enzyme may solve the problem of pollution．
| A． |
air |
| B． |
water |
| C． |
light |
| D． |
plastic |
（2）The underlined phrase "break down" in the passage probably means " " in Chinese．
| A． |
实验 |
| B． |
生产 |
| C． |
发明 |
| D． |
分解 |
（3）Researchers discovered that a natural enzyme helped eat plastics ．
| A． |
in Britain |
| B． |
in the US |
| C． |
in Japan |
| D． |
in China |
（4）Which of the following is TRUE according to the passage ？
| A． |
The scientists are still trying to improve the enzyme． |
| B． |
The enzyme will pollute large areas of land and water． |
| C． |
The natural enzyme works better than the improved one． |
| D． |
The natural enzyme is harmful to humans and animals． |
Big schoolbags have been a big problem for students for a long time. Maybe your schoolbag is too 31 to carry, and it troubles you a lot 32you want to find out a book to read. Now e -textbooks will 33you.
It is said that many Chinese middle schools are going to use e - textbooks. An e - textbook, in fact, is a small 34for students. It is much lighter than a usual schoolbag and 35to carry. Though it is as 36 as a book, it can hold (容纳) everything for study. The students can read the text page by page on the 37 , take notes 38the pointer (屏写笔) ,or even "hand in" their 39to their teachers by sending e - mails. All they have to do is to press a button ( 按开关).
Some people say e- textbooks are good, but some say they may be40for the students' eyes. What do you think of it.?A. expensive B. heavy C. light
A. till B. after C. when
A. trouble B. help C. solve
A. TV B. radio C. computer
A. easy B. difficult C. hard
A. smaller B. small C. harmful
A. paper B. keyboard C. screen
A. with B. in C. by
A. computer B. homework C. e - textbooks
A. bad B. dangerous C. good
阅读下面材料，然后从各题所给的四个选项中选出一个最佳答案．
Fresh green grass． Hundreds of colorful wild flowers． Water running into little pools． Birds making their homes in boxes． The 9， 500﹣square﹣metre Augustenborg Botanical Garden may look just like any other well﹣organized park but there's a difference． It lies on the roofs（屋顶） of industria land office buildings in the city of Malmo in Sweden．
Green roofs are not a new invention． And now they are getting popular again． The common roofs of a modern city have endless black surfaces with no life or water． Perhaps that's why a garden on a roof becomes such a perfect choice for more and more people．
Green roofs are not just pretty． They also help to moderate the city temperature． The high temperatures on common roofs in the summer can make top floor flats uncomfortably hot． What is more， they play a part in making the cities hotter than the countryside around them， causing the "urban heat﹣island effect"． On a green roof， however， with its plants and water， temperatures change only a little， as they do in a park． This can greatly cut the costs of heating and cooling in the building below．
Also， a green roof takes in rain water， and protects the city drainage（排水） system．_____ And small animals and birds can make their homes on it． Thanks to this， the city may become part of nature， rather than something completely separate from it．
While the cost of building such a roof can still be higher， it can be cheaper in the long term as a result of energy savings． And wouldn't it be wonderful to be able to walk out into a garden high above the city's noise and traffic， whether you're at school or in an office or just at home in a ten﹣floor block．
（1）With the example of Augustenborg Botanical Garden， the writer wants to explain ．
A． how wildlife is protected
B． what a green roof is like
C． how to organize a good park
D． what to do with a spare roof
（2）The underlined word " moderate" in Paragraph 3 is the closest in meaning to " "．
A． raise
B． check
C． record
D． control
（3）Which of the following is the best sentence to fill in the blank in Paragraph 4？
A． A green roof is alive．
B． A green roof stops pollution．
C． A common roof is noisy．
D． A common roof increases the cost．
（4）The purpose of the passage is to ．
A． discover the problems with green roofs
B． introduce the change of green roofs
C． show the amazing beauty of green roofs
D． describe the advantages of green roofs
The best thing to start your day is a good breakfast. There are different 36 of breakfasts around the world.
“Eat breakfast like a king, lunch like a prince and dinner like a pauper(穷人).” 37 the old saying tells us, breakfast is the most important meal of the day. It 38 us with energy after a long night without food.
If people don’t have breakfast in the morning, they will feel tired and get angry easily. Breakfast helps children stay more focused in school. A study showed that children who eat breakfast regularly score 39 in most subjects.
Breakfast is also important for weight loss. If you have a balanced breakfast, you will eat
40 throughout the day.
A healthy and 41 breakfast should include some protein(蛋白质) like eggs, milk or a little meat, which makes you energetic all day.
Carbohydrates(碳水化合物)like rice or bread can keep you active. Vegetables and fruit
42 the vitamins that humans need.
43 ,in China, breakfast is different from region to region. Porridge with pickles(咸菜),baozi, noodles, soybean milk and youtiao are common throughout the 44 country. Although Western culture has influenced China a lot, most people still 45 traditional Chinese breakfast. They think that porridge and noodles are not only easily digested(消化), but also can provide enough energy in the morning.
A．ways B．types C．rules D．methods
A．So B．Though C．As D．When
A．provides B．gives C．offers D．has
A．lower B．less C．higher D．more
A．less B．fewer C．more D．much
A．experienced B．balanced C．excited D．different
A．has B．have C．is D．are
A．Therefore B．Thus C．Because D．However
A．all B．one C．whole D．total
A．dislike B．know C．want D．prefer
"Early to bed and early to rise make a man healthy，wealthy and wise．"This is an old English saying．It means that when we go to bed early，we can get up early the next morning．Then we will become healthy．We will also become rich and clever．
This is true．To be healthy，we must have enough sleep．Experts（专家） say that adults should get seven to eight hours of sleep a night．Teenagers need nine to ten hours．And school﹣aged children may need more than ten hours of sleep．Children who do not have enough sleep can't do their work very well．They won't be wise and they may not become wealthy!
We also need exercise．Walking，running，swimming and playing games are all exercise．Exercise keeps us strong．It also helps the blood to move around the body．This is very important．Our blood takes the nutrition（营养） from food to all parts of our body．
The head also needs blood．So exercise that moves the blood to our head helps us think better!
（1）If we get up early and go to bed early，we'll ．
| A． |
become weak |
| B． |
have more time |
| C． |
be healthy |
| D． |
have more work to do |
（2）Who needs most hours of sleep to keep healthy？
| A． |
Adults |
| B． |
Teenagers |
| C． |
Experts |
| D． |
School﹣aged children |
（3）A child when he does not have enough sleep．
| A． |
can't study well |
| B． |
will be wise |
| C． |
will be wealthy |
| D． |
will be active in class |
（4）A person needs exercise because ．
| A． |
he is strong enough |
| B． |
it helps make him healthy |
| C． |
he has a lot of homework to do |
| D． |
It can bring him much blood |
（5）Which of the following is Not TRUE？
| A． |
Exercise helps the blood to move． |
| B． |
Exercise is good for a person's head． |
| C． |
If we have enough blood，we'll be wise． |
| D． |
It's good for us to get up early and go to bed early． |
According to the finding of a new UN report，the world wastes about one sixth of the food each year.That's about 1，030，000，000 tons，or 121 kilograms for each person on the Earth.
61% of the food waste is from home cooking.Food services，such as restaurants，produce 26% and groceries （食品杂货店）and other stores 13% "We thought waste was a problem in rich countries，" says Martina Otto，who works for the UN Environment Program.
"However，the new report finds，food waste is a big problem in nations rich and poor."
Each year，some 690，000，000 people go hungry.At the same time，about 10% of all CO2 on the Earth is from the activities that produce the food waste.Control on food waste can help deal with hunger and cut down that pollution.It is helpful to both people and the planet.By avoiding wasting food，we can save money and time.More importantly，we can help protect the Earth's most valuable resources （资源）.
Then what can we do to stop food waste？Small actions make a difference.Each of us can play a part.Next time，before you throw，think twice!
（1）Where is most food waste from？
A.Home cooking.
B.Restaurants.
C.Food stores.
D.Groceries.
（2）What is the third paragraph （段落）mainly about？
A.How we can protect the Earth.
B.Where we shall find resources.
C.Why we should avoid food waste.
D.What we will do with pollution.
（3）What is the purpose of the text？
A.To collect money.
B.To call for action.
C.To get some advice.
D.To express thanks.
In 1988，Wang Chengbang retired（退休）from the army.Instead of enjoying a relaxing life，he volunteered to save the soil from desertification（沙漠化）by planting trees in Korla，Xinjiang.
It is no easy job.The high temperature in Korla makes it difficult for anyone to work day after day in the sunshine.Besides，water is a big problem.In fact，Wang Chengbang's work in the first few years failed as very few trees survived（存活）.
But Wang Chengbang would not give up."After trying many different ways，I have learned how to grow young trees in a better way，" said Wang Chengbang.He also worked out new ways to save water.With his hard work，more and more trees have survived.So far，he has planted more than 1.5 million trees.Those green trees prevent desertification，make the air cleaner and protect people from the hot sun.Now，Korla is a model city in environmental protection.
Wang Chengbang is also successful in fighting cancer（癌症）.In 2005，he had cancer and was told that he had only six months to live.However，he continued taking care of his trees rather than lying on the hospital bed."Working is the best medicine.Planting trees helps to fight cancer，" he often jokes.
Now，at the age of 85，Wang Chengbang is still working.
（1）Is it an easy job for Wang Chengbang to plant trees？
（2）How many trees has Wang Chengbang planted so far？
（3）What is Wang Chengbang successful in？
（4）In the summer holiday，do you want to be a volunteer to work with Wang Chengbang？Why or why not？
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． |
|
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 |
Dogs might have the latest tools in the fight against cancer （癌症）：their noses!Researchers at California's Pine Street Foundation （PSF） say they have trained five dogs to smell cancer on a prison's breath.This could be exciting news.
A dog's sense of smell may be 10，000 to 100，000 times stronger than ours.But can dogs really smell illness？PSF researcher Michael McCulloch says yes. "We were very surprised by how exact they were，" he said. "They were telling who had cancer，and they were also saying who didn't."
McCulloch and his team asked four healthy people and one with cancer to blow into plastic tubes （塑料管）.Special materials in the tubes kept the things of each breath.The tubes were then placed one yard apart.Finally the dogs were allowed to smell the tubes.Each dog had been trained for three weeks to sit when it smelled cancer.Ninety﹣nine percent of the time，the dog sat next to the tubes blown into by patients with lung cancer.The dogs were right 88 percent of the time about breast cancer.
| Dogs in the Pine Street Foundation test were trained to sit when they smelled cancer.How well did they perform？Take a look at this chart to find out. |
||
| Breath Sample |
Number of Times the Dogs Sat Down |
Number of Times the Dogs Kept Standing |
| Breath from lung cancer patients |
564 |
10 |
| Breath from healthy persons |
4 |
720 |
No lab test for cancer has given more correct results than this test.The results are so amazing that many experts question the dogs' smelling power.They wonder if there were other reasons why the dogs did so well.For example，they thought the way the dog trainers behaved could have influenced how the dogs acted.However，most experts agree that this study is important.The information could help scientists create a simple breath test for cancer in the future.Once again humans may be getting a helping paw or nose﹣from their best animal friends.
（1）What's the latest tool a dog might have in the fight against cancer？
A.Tooth.
B.Nose.
C.Ear.
（2）What happened first in the Pine Street Foundation test？
A.The dogs were trained.
B.The tubes were placed one yard apart.
C.The dogs smelled the tubes.
（3）What was a dog supposed to do when it smelled cancer？
A.Smell again.
B.Turn around.
C.Sit down.
（4）Look at the chart.How many times did the dogs keep standing when they smelled the breath from healthy persons？
A.Less than 10 times.
B.Almost 600 times.
C.About 700 times.
（5）Why do many experts question the dog's smelling power？
A.Because no lab test for cancer has given more correct results.
B.Because the dog trainers influenced how the dogs acted.
C.Because they don't think this study is important.
The world uses about a thousand million （百万） tons of water a day． Water is a human right and everyone should have their share． Yet more than 700 million people around the world have trouble getting clean， safe water．
Treating wastewater is a good way to provide fresh water for us． And it also helps the environment by keeping waste out of rivers and oceans． 80% of wastewater around the world is not treated at all， and it is running into oceans．
But now we have got the technology to treat and reuse the wastewater．
While 75% of our planet is covered with water， only about 2% is fresh water﹣that comes from rivers， lakes， ice and snow． The rest， 98% of the water， is in seas and oceans． It is too salty to drink． Then desalinationbusinesses come in． More than 19.000 factories have been built around the world， mostly in coastal countries． They process（加工） more than 92 million tons of water every day． But the technology they use requires a lot of energy．
Scientists are working to create a less costly technology． They want to produce 20 times more clean water and make sure everyone has enough． But for now， the world still faces each day with not having enough water for everyone．
（1）How many people have trouble in getting clean water around the world？
A． Under 10 million．
B． Only 19 million．
C． About 92 million．
D． Over 700 million．
（2）Treating waste water helps the environment by ．
A． storing waste in ice and snow
B． letting waste run into oceans
C． keeping waste out of rivers and oceans
D． sending waste to coastal countries
（3）What does the underlined word "desalination" in Paragraph 3 mean？
A． 远洋运输
B． 潮汐发电
C． 食盐销售
D． 海水淡化
（4）At present， the technology to process water ．
A． needs much energy
B． saves much money
C． satisfies everyone
D． causes pollution
（5）What can we infer from the last paragraph？
A． Water should be a human right．
B． The water problem is still serious．
C． Our planet is covered with water．
D． Everyone has enough clean water．
In the year of 2020， the coronavirus（新冠病毒）out broke（爆发）all over the world． A lot of people suffered from（遭受……折磨）a fever or a cough． Don't be afraid． Here is some advice to help you protect yourself．
Wash your hands． You need to wash your hands with soap and water before you eat， after you use the toilet， and after you touch animals， because your hands may carry viruses （病毒）．Cover your nose and mouth． When someone sneezes（打喷嚏）or coughs，the viruses can travel as far as one meter through the air，so you'd better stand a proper distance while talking to someone who has a cold． And always cover your mouth and nose with a piece of paper when you sneeze or cough，and then clean your hands． Wear a mask（口罩）． Some doctors say that masks can stop the virus as much as 80%， but if you don't wash your hands often， it's no use wearing a mask． So it's necessary to wear the mask in the groups of people．
Do sports often． Exercises will help make your body strong enough to resist（抵抗）the virus．
How to protect yourself from the corona virus |
|
Wash your hands． |
● （1） you eat． ● After you use the toilet． ● After you（2） ． |
Cover your nose and mouth． |
● When someone sneezes or coughs， you'd better stand a proper distance while talking to someone． ● Always cover your nose and mouth with a piece of（3） when you sneeze or cough． |
（4） ． |
It's necessary to wear the mask in the groups of people． Masks can stop the virus as much as 80% |
Do sports often． |
Exercises will help make your body（5） enough to resist the virus． |
October 21，2013was an unforgettable day．Harbin had to close roads and schools，and stopped hundreds of flights from its airport，because the air pollution was so bad there．
News reports said the smog （雾霾） was so thick that people couldn't see more than 10or 20meters in front of them．The city's website said："You can't see your own fingers in front of you．"The local people said there was a"burning"smell in the air．Many people covered their noses and mouths with scarves．
The pollution was caused for the following reasons：farmers burnt off corn stalks （称）；the people burnt coal （煤） for heating and winds were low，which allowed the smoke to remain over the city．
Harbin has a population of more than 10million people．It lies in northeastern China，where cold winter weather can last six months．The main fuel （燃料）there is coal，because it is cheaper than other types of fuel．
Air pollution from burning coal can cause health problem like heart disease．During the smog days in Harbin，the number of people taken to the hospital with breathing problems was 30% higher than usual．
The local government is trying to use less coal by adding much better roofs and windows to building to cut heating needs．It has also used cleaner fuel for cars and factories．
66．Which of the following sentence is the best for the blank （ 横线）in paragraph 2？
| A． |
They could not even see the person standing next to them． |
| B． |
They lived a healthy and happy life． |
| C． |
They got up a little earlier than before to enjoy fresh air． |
| D． |
They could hear each other clearly． |
67．What is talked about in paragraph 3？
| A． |
The people of the city． |
| B． |
The food of the city． |
| C． |
The reason for the pollution． |
| D． |
The life of the farmers． |
68．Coal is the main fuel in Harbin，because
| A． |
coal is richer in Harbin． |
| B． |
coal is cheaper in Harbin． |
| C． |
coal is greener in Harbin． |
| D． |
coal is clean in Harbin． |
69．How does the local government cut heating needs？
| A． |
By using cleaner fuel for cars and factories． |
| B． |
By burning off corn stalks and coal． |
| C． |
By stopping hundreds of flights from its airport． |
| D． |
By add much better roofs and windows to buildings． |
70．What's the best title （标题） of the passage？
| A． |
The air pollution in Harbin． |
| B． |
The water pollution in Harbin． |
| C． |
The noise pollution in Harbin． |
| D． |
The land pollution in Harbin． |
Everyone should do something to protect the environment. How did we help to save our earth this week? Let me tell you.
First, my family try to save . We never left the lights on when leaving the rooms. We turn off the TV when is watching it. Mom only uses cold water in the washing machine.
Second, we also start recycling this week. We to write on both sides of the paper, not just on one side. We also our rubbish into different bags for bottles, cans, paper and food. Mom keeps the plastic shopping bags from the supermarket to use them again as rubbish bags. These are great to help our environment.
Third, my family also save water. We never take long baths and have short showers . We wash the toilet with used water. My sister and I don’t
the tap running when we brushed our teeth.
At last, mom and dad begin to save gas. Mom to drive us to school, but now my sister and I start riding our bikes to school. It’s hard work good exercise! This week dad and his workmates(同事) also start to go to work together in one and share the cost. This also help reduce greenhouse gases.
These are great ways to help protect our environment.
A．water B．oil C．electricity D．food
A．somebody B．everybody C．nobody D．anybody
A．want B．keep C．refuse D．try
A．divide B．check C．buy D．change
A．ways B．advice C．information D．news
A．again B．instead C．already D．too
A．leave B．stop C．finish D．watch
A．hoped B．began C．used D．needed
A．or B．but C．for D．and
A．car B．bus C．subway D．train
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