German scientist think that your brain keeps working while you're asleep.To show that they were right，they gave two groups of students a problem to work out Group One went to sleep，and Group Two stayed awake. （1）
At the same time，from a recent study many children have missed out on 4.500 hours of sleep by the time they are seven years old.According to the Ministry of Education，primary school students should get at least 10 hours of sleep a night. （2） The answer is nine.If they don't get enough sleep at night，they will face more challenging situations in schoolwork.
Schools are taking action to make sure the students can get enough sleep.
（3） Three reasons are mentioned for the problem.Firstly they spend hours n scrolling（滚动），such as Douyin and Wechat Hours of watching the mobile phones can be harmful to their eyes and cause students to sleep less. （4） They may work overtime to get the job finished and they can't watch over he kids.Lastly，drinks like tea or coffee can also keep them excited and awake.
（5） For example，they should avoid using mobile phones too much，and drink something like milk before going to bed.
Only if schools，families and students join hands together，can students get enough sleep and be at their best in schoolwork.
阅读短文，把 A﹣E五个句子填入文中空缺处，使短文内容完整。
A.But researchers say many students still sleep less. B.In fact，students themselves should also take sleep seriously. C.Secondly，busy parents may not remind them to go to bed at the proper time. D.Then how many hours of sleep should junior high school students get a night？ E.The result showed the students who slept worked out the answer more quickly. |
There are only 24 hours in a day，and usually about a third of that is spent sleeping.So is it possible to make use of this time and learn a new skill or even a language？In other words，is sleep learning possible？
Many studies have found that a basic form of learning called conditioning can happen during sleep.In a 2012 study published in the magazine Nature Neuroscience，for example，Israeli researchers found that people can learn to connect sounds with smells during sleep.The scientists played a tone to sleeping study participants while putting some rotten（腐烂的）fish beside their beds.Once awake when hearing the tone.The people held their breath in anticipation of a bad smell.
"This was a dear finding showing participants formed new memories during sleep， " said Andrillon，a scientist in this held.
Although the now memory was implicit （暗示性的），it could influence how people behave，researchers found in a 2014 study published in the Journal of Neuroscience.In that research，after spending a night in a room full of cigarette（香烟） smell mixed with rotten eggs or fish，smokers use fewer cigarettes.
Andrillon and his team members have found that learning in sleep can also go beyond simple conditioning.In their 2017 study published in Nature Communications，participants were able to pick out sound features that they had heard during sleep.
Learning abilities in sleep may spread to learning of words.In a study published in Current Biology，researchers played pairs of made﹣up words and their supposed meanings like "guga" means elephant，to sleep participants.After this，when awake，the participants did better in picking the right translation of made﹣up words in a multi﹣choice test.
So far，research suggests it may be possible to learn about the tone and pronunciation of a language or even the meaning of words while sleeping，although it is to a weaker level than what we do during the day without noticing.
（1）What is the main purpose of the text？
A.To show that sleep learning is possible.
B.To study how to make use of sleep learning.
C.To report some famous research findings.
D.To prove sleep learning is implicit and weak.
（2）What does the phrase ''new memories'' in the third paragraph refer to（指的是）？
A.Connection between participants and scientists.
B.Connection between sounds and smells.
C.The tone's influence on the rotten fish.
D.The rotten eggs' influence on cigarettes.
（3）What is the main idea of the last two paragraphs？
A.Sleep can do good to learning.
B.Language learning can happen in sleep.
C.People learn in sleep in a different language.
D.Sleep learning is better than daytime learning.
Everyone has his or her own living habits.Building good living habits is important.Why are some habits better than others？Let's find out.
（1）
Corn，sweet potato，soybean and oats are all coarse food grains （粗粮）.Eating coarse food grains is good for your health.They have a lot of dietary fiber （食用纤维）.It's good for your stomach.You can cook them in porridge or make drinks with them.
Why shouldn't we bend our heads for a long time？
Keeping your head bent down for long is not good for your neck.Why is that？It's because you put too much pressure on your neck.It's like putting two watermelons（about 27 kilograms）on your neck.（2）
Why shouldn't we rub （揉） our eyes？
Your hands are much dirtier than you think.When you rub your eyes，the bacteria （细菌） on your hands might go into your eyes.（3） Clean them with running water instead.
（4）
After exercising，your skin is sweating （流汗） and your heart is beating fast.A cold ﹣ water bath will stimulate （刺激） them too much.（5） .You'd better wait for a while until your body cools down.Then you can take a warm﹣water bath to relax.
A.Why is a cold﹣water bath after exercising bad？ B.You might have neck and shoulder pain by doing that. C.It might make you sick. D.If something gets in your eyes，do not rub them. E.Why do we need to eat coarse food grains ？ |
German scientist think that your brain keeps working while you're asleep.To show that they were right，they gave two groups of students a problem to work out Group One went to sleep，and Group Two stayed awake. （1）
At the same time，from a recent study many children have missed out on 4.500 hours of sleep by the time they are seven years old.According to the Ministry of Education，primary school students should get at least 10 hours of sleep a night. （2） The answer is nine.If they don't get enough sleep at night，they will face more challenging situations in schoolwork.
Schools are taking action to make sure the students can get enough sleep.
（3） Three reasons are mentioned for the problem.Firstly they spend hours n scrolling（滚动），such as Douyin and Wechat Hours of watching the mobile phones can be harmful to their eyes and cause students to sleep less. （4） They may work overtime to get the job finished and they can't watch over he kids.Lastly，drinks like tea or coffee can also keep them excited and awake.
（5） For example，they should avoid using mobile phones too much，and drink something like milk before going to bed.
Only if schools，families and students join hands together，can students get enough sleep and be at their best in schoolwork.
阅读短文，把 A﹣E五个句子填入文中空缺处，使短文内容完整。
A.But researchers say many students still sleep less. B.In fact，students themselves should also take sleep seriously. C.Secondly，busy parents may not remind them to go to bed at the proper time. D.Then how many hours of sleep should junior high school students get a night？ E.The result showed the students who slept worked out the answer more quickly. |
5 ways to train your brain for better sleep
The days are longer，full of sunshine and bright with the promise of enjoying a more relaxing spring and summer with your loved ones.But if you want to enjoy your daytime，it's time to improve your sleep during the night﹣time. "Sleep problems endanger health and quality （质量） of life for up to 45% of the world's population，" according to the World Sleep Society.
Sleep is one of the three keys to a healthier，longer life （the others are diet and exercise）. （1） .Here are the top five ways to improve your sleep and get some zz's：
Create a sleep nest
（2） .Science tells us that we sleep better in cooler temperatures of about 60 to 67 degrees Fahrenheit（15℃to 20℃）.
Develop a routine
Set up a bedtime ritual by taking a warm bath or shower，reading a book or listening to soft music.You're teaching your mind to relax.And stick to it.Go to bed and get up at the same time each day，even on weekends or your days off. （3） .
Cut the lights
Production of the sleep hormone melatonin （荷尔蒙褪黑激素） begins at dark.Research has found that the body will slow or stop it with light on，to get away from any light，even the blue light from your charging smart phone.
Refuse the wine
Don't turn to wine to make you calm or help you sleep.（4） .Your body needs to experience all three steps of sleep—light sleep，dream，and deep sleep—to fully repair itself.
（5） .
Heavy and spicy foods may give you heartburn or other digestive problems，thus influencing your ability to get and stay asleep.
If you try these tips and can't seem to relax，or your sleep continues to worsen，be sure to reach out to your doctor or a mental health professional.
A.The body like routine B.Avoid heavy or hot foods C.Refuse coffee later in the day D.One of the first tasks is to set up your sleep environment E.Wine may help you fall asleep，but it holds you in the lighter sleep F.Many of the ways to increase the quality of your sleep are easy to follow |
We are what we eat.From high﹣calorie meals to low﹣fat lunches，much of our health depends on what we eat.We know about the benefits（益处） of eating fittingly for our physical health，but food，and cooking it，is proving to be good for our mental（心理的） health as well.
Some people are now supporting the therapeutic value of cooking food.It's not just about the end result but also the experience someone goes through.Dr Mark Salter，a consultant psychiatrist，told the BBC： "Baking and cooking are good therapies.They help patients develop planning skills，short﹣term memories and social skills—lack（缺乏） of which may lead to mental illness."
TV chef（大厨） and author Nadiya Hussain agrees that cooking is great for helping our mind.She loves to bake and became the champion of the TV show，The Great British Bake Off.She says that "Baking's always been about therapy...It's never really been about the cake." And she thinks that baking is an important tool for our socialization and mental health.
Certainly，creating some delicious food takes our mind off things and gives us something to do，helping us get through the recent lockdown.People have said that mixing dough（生面团）to make bread，for example，has given them a sense of calm and control.Research has shown that doing creative tasks，like cooking，makes us feel happier.Nicole Farmer，who studies how food influences our biology，behavior and mental health，told BBC online that "Cooking represents the human experience of food，and growing people through food，so there is no doubt it can bring us timely positive feelings."
Of course，cooking can be a very sociable activity and sharing the end result，a rewarding experience.Hopefully，as we start to mix with friends and family again，we can enjoy the benefits once more and put us all in the right state of mind.
（1）What is baking in Nadiya Hussain's eyes？
A.It's helpful for our mind.
B.It's a kind of TV programme.
C.It's always about the cake.
D.It's a tool for physical health.
（2）Creative tasks can help people get through the lockdown because they .
A.give people a lasting sense of calm and peace
B.mark the start of the experience of cooking food
C.make people feel more confident and stronger
D.help people take their mind off unhappy things
（3）Which of the following is right according to the passage？
A.Dr Mark Salter is a consultant psychiatrist of the BBC.
B.Hussain once got the first prize for her books on baking.
C.The Great British Bake Off is a TV show about cooking.
D.Nicole Farmer is a British scientist who studies biology.
（4）What is the article trying to convince（使确信） the reader of？
A.Eating fittingly for physical health.
B.Enjoying the course of cooking.
C.Sharing delicious food with others.
D.Developing our planning skills.
The computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century.
Do you think there will be robots in people’s homes? It’s not a dream that every home will have a robot.
Now, robots are not only able to help people do the housework, they can also help the doctors do the difficult operations, play chess with people, play the piano and so on.
A new cooking robot is used in Beijing. It can cook all the dishes on the menu, you only need to wait two to four minutes, in the future, the robot will be a nurse, a security guard, or a partner in your life.
Experts(专家) believe robots will be used everywhere from the industrial( 工业的) robots to service robots. In the future, robots will become part of the family, and provide else service for people. We all look forward to the new robot age. changed our lives in dm 1990s.
A. The robots B. The compilers C The TV sets D. The Interact According to the passage, we know that a new cooking robot is being used in .
| A．the future | B．Beijing | C．many countries | D．many families |
What can the robots do now?
A. They can help people do the housework.
B. They can help the doctor do the difficult operations
C. They can play chess with people.
D. A, B and C.Experts believe robots will be used .
| A．only in a hospital | B．only in a filmily |
| C．only in a factory | D．everywhere |
Which is the best title(标题) of the passage?
| A．The computers changed our lives | B．Robots can cook |
| C．Robots are coming | D．Robots will be doctors |
Is it possible to have a diet（日常饮食）that's both healthy and friendly to our planet？Here are answers to your eco﹣friendly food questions.
Does what I eat influence climate（气候）change？
Yes.The world's food system is responsible for（为……负责）about one quarter of the planet﹣warming greenhouse gases that humans produce each year.That includes raising and harvesting all the plants，animals，and animal products we eat，as well as processing，packaging，and shipping food to markets all over the world.
Which foods have the largest influence？
In general，beef and lamb have the biggest climate footprint per gram of protein while plant﹣based foods like beans，rice，corn and wheat have the smallest influence.Pork，chicken，eggs are somewhere in the middle.
Is there a simple food choice I can make？
Studies have shown that people who eat a meat﹣heavy diet can reduce their food-related footprint by one third or more by moving to a vegan diet ﹣ no meat，dairy（乳制品），or eggs.If you don't want to go that far，just eat less meat.
Can I really make a difference to our planet？
We need more food to feed the world's growing population.One person alone can make only a tiny difference.If many people make changes to their diets，that will start to add up.It will make a greater difference if the world's heaviest meat eaters make some changes to their diets.
（1）According to the passage，which foods have the smallest influence on our planet？
| A． |
Beef and lamb. |
| B． |
Rice and corn. |
| C． |
Chicken and pork. |
| D． |
Beans and beef. |
（2）According to the passage，which of the following is TRUE？
| A． |
One person alone makes no difference to our planet. |
| B． |
Shipping food a lover the world has no influence on climate change. |
| C． |
All the planet﹣warming greenhouse gases come from the food system. |
| D． |
Meat eaters can reduce their food﹣related footprint by eating less meat. |
（3）What is the best title for the passage？
| A． |
How to produce more meat. |
| B． |
How to make more plant﹣based foods. |
| C． |
How to eat better for the planet. |
| D． |
How to ask eco﹣friendly food questions. |
The good things about computer games
They’re fun!
They can improve hand-eye coordination. That means you can think and do things more quickly.
You feel good when you can move up levels and see how well you’re doing.
Most games make you think about what you’re going to do, and they can help you improve the ability (能力) of solving problems.
You can play games on the Internet with people from all over the world.
Anyone can play computer games, even if they aren’t very good at sports, have a disability, or find it hard to talk to others.
The bad things about computer games
Kids may start hitting others in their lives just as they do in games because they may think it’s OK to hit others, or to talk to people, including their parents and teachers, impolitely.
If kids play games for a long time, they may not go out and exercise. They may start eating snacks while they play games and they will become too fat. Doctors are worried about kids that play too many computer games.
Playing games is a big problem for some people. They will play or think about games when they have time. This means they may stop talking with others and become really boring people.How many good things about computer games does the writer mention?
| A．Three. | B．Six. | C．Seven. | D．Nine. |
What does the underlined word “coordination” mean in Chinese?
| A．协调 | B．障碍 | C．舒适 | D．问题 |
If you play computer games all the time, you may become a(n) ______ person.
| A．healthy, impolite and boring | B．healthy, polite and boring |
| C．unhealthy, polite and boring | D．unhealthy, impolite and boring |
Which of the following is NOT true according to this passage?
| A．Most games are good for your ability of solving problems. |
| B．You can’t play games with strangers on the Internet. |
| C．Playing too many computer games may make you fat. |
| D．Playing games can also cause many problems. |
The passage is mainly about .
| A．the two sides of computer games |
| B．how to improve your computer games skills |
| C．playing computer games with others |
| D．some interesting things about computer games |
Look at the Earth from.space.Why does our planet look so blue？Its blue because water covers almost three quarters of the Earth's surface.Water is not just an important part of our planet.It is an important part of our body，too.More than half of our total body weight is water.
Our body loses water whenever we exercise or.go to the toilet.That's why we need to drink plenty of water every day.We drink water.We use it to cook，clean，and carry waste out of our homes.Farmers use it to grow vegetables and crops like rice and corn；factories use it to make products.
Since the 1950s，the amount（数量）of water people use has increased by three times.But the water supply（供应）hasn't.Scientists worry that soon there won't be enough water for us，as well as for the animals and plants that share our world.What can we do to help？Use water wisely.
Having enough water isn't our only problem. We also need it clean.
Right now，ships and factories are putting wastes into seas，rivers and so on.Even chemicals that farmers use are running into rivers and lakes.All this pollution can make the water dangerous to drink.It can also harm fish and other water﹣living lives.
We must do something to stop pollution.It's the best way to protect our world's most valuable natural resource（资源）.
（1）How many important areas of water are mentioned in Paragraph 1？
A.One.
B.Two.
C.Three.
D.Four.
（2）The underlined sentence "We also need it clean" in Paragraph 4 means" ."
A.We also need water to wash things
B.We also need water that looks clean
C.We also need to keep water clean
D.We also need to discover clean water
（3）This passage was written to .
A.ask people to value water
B.advise people to drink more water
C.introduce the uses of water
D.describe the situation of water supply
Every year，tens of thousands of kids aged 3 to 13 become Junior Rangers in different national parks across America.At Yosemite alone，more than 20，000 kids take part in the Yosemite Junior Ranger Program.If you want to be a Junior Ranger，you need to learn about the natural and cultural history .and make a promise to be a national park protector.
Here Is How YOU Can Become a Junior Ranger!
Earn yourself an official Junior Ranger Badge!You could become a Yosemite's Junior Ranger today by completing the following steps：
• Buy your Junior Ranger Handbook in the nearest Visitor Center.
• Complete the pages in the handbook.
• Pick up rubbish.
• Attend a Guided Program.
• Return your completed handbook and a bag of rubbish to the Visitor Center.
• Make your official Junior Ranger Promise at a ceremony.
• Get your official Junior Ranger Badge.
After you become a Junior Ranger，you are encouraged to share your ranger stories with your friends，teachers and families.
（1）Who can become Junior Rangers？
| A． |
Children. |
| B． |
Parents. |
| C． |
Teachers. |
| D． |
Officers. |
（2）What should Junior Rangers promise to do？
| A． |
Read the handbook. |
| B． |
Learn American history. |
| C． |
Share ranger stories. |
| D． |
Protect the national parks. |
（3）Before getting Yosemite's Junior Ranger Badges，they should complete .
| A． |
four steps |
| B． |
five steps |
| C． |
six steps |
| D． |
seven steps |
Computers are useful machines. They can help people a lot in their daily life. For example, They can help people to save much time to do much work, and they can help people to work out many problems they can’t do easily. Our country asked everyone except the old people, to learn to use computers before the twenty-first century.
Today more and more families own computers. Parents buy computers for their children. They hope computers can help them improve their studies in school. Yet, many of the children use computers to play games, to watch videos or to sing karaoke, instead of studying. So many teachers and parents complain that computers can’t help children to study but make them fall behind. So computers are locked in boxes by parents.
In some other countries, even some scientists also hate computers. They say computers make millions of people lose their jobs or bring them a lot of trouble.
Will computers really bring trouble to people or can they bring people happiness? It will be decided by today’s students themselves!Our country asked everyone to learn to use computers except the ________ .
| A．young people | B．old people | C．students | D．adults |
Why do we say the computer is a useful machine? Because _____
| A．Our country asks us to learn it. | B．it can help us to do a lot of things. |
| C．We can use it to play games only. | D．it can help us to find jobs only. |
What do many teachers and parents complain about? They complain about _____ .
| A．their students and children use computers to learn well. |
| B．computers let them lose their jobs |
| C．computers make their students and children fall behind |
| D．computers bring people a lot of trouble |
In this passage we know computers _____
| A．also bring us trouble | B．bring us happiness only |
| C．are hated by people | D．are good for people’s health |
How do you understand the last sentence of this passage? It means ____
| A．computers are used by people |
| B．people can live well without computers |
| C．one must decide how to use computers |
| D．computers are strange machine |
Dolphins are our friends. They can use tools to solve problems although they don’t have hands. For example, scientists have ever found that a dolphin can make a shy eel(鳗鱼) come out of its hole with a dead fish.
Dolphins use different sounds to exchange information with each other. Scientists in Hawaii have developed a sign language to give instructions to dolphins, and the results are amazing. They find that dolphins not only understand the meaning of individual (个别的) words, but also understand the importance of word order in a sentence.
Most animals enjoy playing — but dolphins seem to like making their games as challenging as possible. On a beautiful day in 1997, scientists at a beach watched a little dog going into the sea and swimming towards the dolphins. To their surprise, the dolphins came up to the dog and then started throwing it into the air. The dog seemed to enjoy the "game" and continued playing with the dolphins for more than an hour.
Dolphins live in a very different world from ours, but they are very good at our "IQ tests” . For example, they will jump out of the water when they hear a whistle (口哨) noise. They do this because they will get a fish as a prize.
There is still much to learn about these cute problem-solvers, but it is certain that watching a dolphin show is fun.
根据短文内容，选择最佳答案。 What can a dolphin use to make an eel come out of its hole?
| A．Its mouth. | B．Its head. | C．A dead fish. | D．A little dog. |
How do dolphins exchange information with each other?
| A．By using tails. | B．By using tools. |
| C．By using words. | D．By using sounds. |
Where did the dolphins throw the dog when playing?
| A．Onto its back. | B．Into the air. |
| C．Onto the beach. | D．Into the water. |
Why do the dolphins jump out of the water when they hear a whistle noise?
| A．Because they want to get a fish as a prize. |
| B．Because they enjoy playing on the water. |
| C．Because they want to play with other dolphins. |
| D．Because the dolphin keepers want them to come out. |
Which of the following is TRUE according to the passage?
| A．Dolphins understand many languages. |
| B．Dolphins are a kind of clever animals. |
| C．Scientists have known dolphins well enough. |
| D．Dolphins seem to make their games relaxing. |
A fish that lives in America can live out. of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.
The Mangrove Rivulus, a kind of little fish, lives in small pools of water. When their living place dries up, they live. on the land, said Scott Taylor, a researcher in Florida.
The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.
The new scientific discovery came during a trip.
"We were travelling for fun. and one day I kicked over a log (圆木) and the fish came out," Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.
In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish(肺鱼) found in Australia, Africa and South America can live out of water, but only in a not active(活波的)way. But no other known fish can be out of water as long as the Mangrove Rivulus and keep active, according to Patricia Wright, a biologist at a Canadian University.
More studies of the fish may tell how animals changed over time.
"These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land," Wright said.The Mangrove Rivulus is a type of fish that_________.
| A．lives on land in Africa |
| B．can stay alive for months out of water |
| C．prefers living in dry places |
| D．is the longest living fish on earth |
Who will write a report on Mangrove Rivulus?
A, Scott Taylor. B. Some reporters.
C. Patricia Wright. D. Scientists from Europe.According to the passage, lungfish can___________.
| A．breathe through its skin | B．be found in Asia |
| C．keep alive out of water | D．keep alive and walk on land |
Which one of the sentences below is not true?
| A．The Mangrove Rivulus fish can live out of water as long as other animals if it has something to eat. |
| B．Millions of years ago, animals began to live onto land from water. |
| C．Lungfish found in Australia, Africa and South America can live out of water in a not active way. |
| D．The walking catfish found in Southeast Asia can stay on land for hours at a time. |
What can we say about the discovery of Mangrove Rivulus?
| A．ft was made by Scott Taylor, a researcher in New york. |
| B．It was helped by an American magazine. |
| C．It was helped by Patricia Wright. |
| D．It was made by a researcher while travelling. |
Isn't fast food delicious？Aren't fast food restaurants cool？ ...The answer to these questions is yes.
However，there are growing facts that fast food is one of the worst parts of modern life.And studies have shown that burgers and fried chicken，which we enjoy so much，can cause a lot of health problems.
In spite of （尽管） this，why are fast food restaurants so attractive（吸引人的）？The first and most important reason is that their service is fast.Their staff（员工）are friendly and very smart﹣looking in their clean and bright uniforms（制服）.Moreover，most fast food restaurants are near places that people always pass by.It is so easy to graba burger and eat on the way to work.
Fast food is often so conveniently packed（包装方便）that it will not cause a mess even if you stand and eat it.Fast food restaurants are also very clean.A lot of clever ads（广告）have made them the coolest places in town，but none of them has ever told and will never tell you that too much fast food is not good for your health.
Such attractive places are selling junk food!Isn't it a pity？Is there a way to change the fast food restaurants into special places where you get the best possible，healthy and fresh food？
Well，why not？
As people realize the health problems that fast food causes，it is quite likely that fast food restaurants may go out of date.It may happen sooner or later.
Therefore，instead of resisting（抵制）fast food restaurants，a better idea may be to persuade（说服）them to change their menu!Fast food restaurants can be places to go to when you want to eat something that will be good for your body.If they could combine（结合）healthy food with their speed of service，delicious tastes and comfortable feelings，that will be the next best thing on the earth for the human beings!
（1）What does " this" in Paragraph 2 refer to？
| A． |
Fast food is delicious. |
| B． |
Fast food restaurants are cool. |
| C． |
People enjoy fast food. |
| D． |
Fast food can cause health problems. |
（2）Fast food has many advantages EXCEPT that it's .
| A． |
delicious |
| B． |
fast |
| C． |
healthy |
| D． |
unhealthy |
（3）Which word can replace the word " grab" in Paragraph 3？
| A． |
move suddenly. |
| B． |
get quickly. |
| C． |
throw quickly. |
| D． |
carry carefully. |
（4）According to the passage，ads about fast food .
| A． |
show you all the facts |
| B． |
don't tell you the whole truth |
| C． |
make it hard to buy fast food |
| D． |
make fast food restaurants out of date |
（5）The author advises .
| A． |
making the service of fast food faster |
| B． |
resisting fast food restaurants |
| C． |
changing tastes of fast food |
| D． |
making fast food good for health |
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