完形填空。阅读短文，从A、B、C三个选项中选出一个最佳选项。（共10小题，计10分）
When people talk about air pollution, they are usually thinking about outdoor air . But do you know that there is also air pollution inside homes, offices, hotels and other buildings? The air in your home can be 2 to 100 times more polluted than the air outdoors! In fact, some American doctors say that 50% of the illnesses have to do with the polluted indoor air.
A lot of pollution comes from indoor activities smoking and cooking. As most people about 80%-90% of their time inside buildings, it is important to take indoor air pollution seriously, too.
Air pollution influences our health . When the air is polluted, not only young children and old people from it, people with health problems suffer as well. Indoor air pollution can people’s eyes, noses and throats. Air pollution, both indoor and outdoor, can also to lung cancer and heart disease! In the great London fog in 1952, 4, 000 people died in a few days the pollution! It is said that half a million young children and women die each year in India because of indoor air pollution!A.pollution B.pollute C.polluted
A.anything B. everything C. something
A.as well as B. such as C. instead of
A. take B. cost C. spend
A. in many ways B. in many things C. in many houses
A.suffer B. bear C. stand
A.and B. but C. or
A.hit B. hurt C. pollute
A.cause B. get C. lead
A.because of B. thanks to C. Because
The Youth Climate Summit（气候峰会） a week﹣long festival of climate action for primary and middle schools in the UK，starts on 9 November.It aims to create a fairer，more environmental world and make promises that will help the planet.Climate change is the long﹣term changes in the world's weather patterns that are mostly caused by human activity. "Unlike world leaders， "say the summit's organizers. "young people are refusing to let it drop off the plan. "
Each day has a topic，which includes food and fashion，looking at how humans harm the environment and how to save the planet.Organizations are leading some on line activities.For example，the Marine Conservation Society is hosting meetings on protecting sea fish.Separately，the environmental organization Greenpeace is running a workshop on how to turn worn﹣out clothing into something new and wearable.
The summit will finish on 13 November，when youth ambassadors（大使）wants schools to stop paper waste.Max，another 16﹣year﹣old ambassador wants schools to organize more trips and activities that get students outside to experience the beauty of nature.As part of the summit，hundreds of schools across the country are signing up to the Let's Go Zero activity，aiming to become carbon﹣zero（零碳的）by 2030.
Carbon﹣zero schools are ones that promise to stop emitting carbon in seven areas，including where they get their food and how they use water and recycle their waste.The activity is run by Ashden，a charity working towards climate solutions.Ashden hopes that schools will be able to help each other by sharing ideas and methods.It is also calling on the Government to back the promise.Head over to transform﹣our﹣world.org where you can find out more.
（1）The writer develops the first sentence in Paragraph 2 mainly by .
| A． |
telling stories |
| B． |
comparing facts |
| C． |
giving examples |
| D． |
listing numbers |
（2）Max advises schools to .
| A． |
recycle and reuse old clothes |
| B． |
prevent students from wasting paper |
| C． |
have meetings on saving endangered sea fish |
| D． |
provide more chances for students to enjoy the nature |
（3）The underlined word " emitting" in Paragraph 4 is the closest in meaning to" ".
| A． |
using up |
| B． |
taking in |
| C． |
sending out |
| D． |
cutting down |
（4）The purpose of the passage is mainly to .
| A． |
explain the problems with climate change |
| B． |
develop children's ability to solve social problems |
| C． |
introduce the environmental organizations to schools |
| D． |
encourage young people to care more about climate change |
What do you do with your rubbish？Throw it out？You don't know what you're missing!Look closely at the two figures on your left.They were made from things most people throw away.The figures were made from used bottle caps.Those two bottle﹣cap figures were exhibited （展示） in a museum.
Folk art is art made by common people who have not been trained as artists.Their work is often based on traditions in their culture.Fine art，on the other hand，is usually made by people who have had training in art.Works of fine art are valued for their artistic beauty.They are supposed to be looked at but not used.Works of folk art，however，are often made for everyday use.
There were more than 800 pieces of folk art from nearly 50 countries in the exhibition.All of the pieces were made from used metal，wood，cloth，and plastic.The artists come from many different cultures.Still，they all share one thing.They take objects that are normally thrown away and change them into objects that are beautiful，useful，and fun.The artists may not think of what they do as recycling，but that's exactly what it is.Fine artists might work with expensive materials.They might use expensive tools to shape these materials into works of art.On the other hand，in poor countries rubbish might be the only material folk artists and toy makers can afford.The exhibition shows that a rich imagination is very important when there are only poor materials.Recycled art began long before people began to think about recycling.Some of the objects in the exhibition date from the 1930s.
Even if you don't create art out of rubbish，it's good to save our natural resources.Remember the three rules：reduce，reuse，recycle.If you reduce waste，true things instead of throwing them out，and recycle materials such as paper，plastic，and glass，you will protect the environment.
（1）Which idea belongs in the empty box？
| Conclusion （结论） |
Details |
| |
Art based on cultural traditions |
| Art made for everyday use |
|
| Art made with used materials |
A.Folk art is made by people who are not trained artists.
B.The artists come from many different cultures.
C.Recycled art began long before people started recycling.
（2）What can we learn from Paragraph 3？
A.There was more than 800 pieces of fine art.
B.Folk artists can't shape expensive materials into works of art.
C.Poor materials also can be made into works of art.
（3）What is the same thing of the pieces in the exhibition share？
A.They are all woks of fine art.
B.They are all made from used materials.
C.They are all made by the trained artists.
（4）What can we do to protect our environment？
A.Throw away used materials.
B.Only use expensive materials.
C.Recycle materials.
（5）Which of the following would be the best title for the passage？
A.Used Bottle Caps
B.The Art of Recycling
C.A Museum Exhibition
My wife and I were on our honeymoon in our homeland， visiting my parents﹣in﹣law．My wife Helen was making a film and my job was to make up the music， but I didn't bring my guitar with me． I locked myself in the barn toilet，and carved a guitar neck from a scrap（废弃的） piece of wood． In the barn， I found a drum， which used to be part of an old tape﹣recorder， It's like a guitar， but it has four strings． So is it a balalaika or a guitar？ They have something in common （共性）， we call it a balalaika but it's played differently． |
Our daughter Kitty had just started school，so she needed a place to do her homework．There isn't much room except a table in the kitchen．When my wife cooks，she needs to use the table． One day I walked past a rubbish bin and saw a folding （可折叠的） table lying there．I thought I could make something out of it． It was just the right size a bigger one wouldn't have fitted into the room．I fixed a slab of board for the desk and made the back of the seat softer，then I oiled the screws so it is easier to fold． |
Our dad's friend made the Little House for his daughter．It was made of wood and bricks which were thrown away．And when she grew up， he offered it to us．So how long has it been standing here？ I'm forty years old now， so it must be at least fifty．The man's name was Bob．He's not alive any more but I still remember the nice time in the Little House． When my children were growing up， they used to say "We're going to play in the Little House!"or "Where are you？ I'm in the Little House!" |
It's a go﹣kart for my son Tom to ride down the hill．He wanted to make one so I helped him．I had bought him one，but he wasn't satisfied with that．I just made it from pieces lying around．The wheels were from two different scrapped carts． My father﹣in﹣law had them in his barn．He doesn't throw anything away． I only used cart parts， some wood， a cushioned seat， and a rope．It cost nothing． My son likes it so much． I feel so happy． |
（1）Which of the following was given by a friend？
（2）What do the four stories have in common？
A． The children in the stories were good at DIY．
B． Fathers made the four objects for their children．
C． Some scrap materials were made good use of．
D． The four objects were made just for pleasure．
（3）From the passage， we can infer （推断） that ．
A． Kitty's father did not have money to buy a new table
B． at least four children once played in the Little House
C． Helen and her husband were good at making instruments
D． Tom enjoyed making things like his father and grandfather
Rethink， Reuse， Recycle!
Do you often throw away things you don't need anymore？ Have you ever thought about how these things can actually be put to good use？ Nothing is a waste if you have a creative mind．
You have probably never heard of Amy Hayes， but she is a most unusual woman． She lives in a house in the UK that she built herself out of rubbish． The windows and doors come from old buildings around her town that were pulled down． The top of the house is an old boat turned upside down． And the gate in front of her house is made of rocks and old glass bottles． Amy recently won a prize from the Help Save Our Planet Society． The president said， "Amy is an inspiration to us all．"
Amy isn't the only one who is good al recycling． Jessica Wong from Hong Kong uses old clothes that people don't wear anymore to make bags． She has been doing this for a few years now． She opened a small shop where she sells her bags， and she has also set up a website to sell them online． She especially likes to use old jeans to make handbags． Her bags are cute and useful． "I plan to write a book about new ways to use old clothes，" she said． "I hope people can read my book and enjoy it!"
Wang Tao set up a small business in Shanghai four years ago． He is known for using iron and other materials from old cars to make beautiful art pieces． Some are large pieces that look like animals or humans， and some are smaller pieces you can put at home． The more popular works can even be seen in art shops around the city． Wang Tao hopes to set up a "metal art" theme park to show people the importance of environmental protection． Not only can the art bring happiness to others， but it also shows that even cold， hard iron can be back to life with a little creativity．
| Rethink， Reuse， Recycle! |
Amy Hayes from the UK |
★Build a house by using rubbish． ★Win （1） from the Help Save Our Planet Society． |
| Jessica Wong from HK |
★Make bags （2） ． ★Set up a website to sell them． ★Plan （3） about how to use old clothes． |
|
| Wang Tao in （4） ． |
★Use iron and other materials from old cars to make art pieces． ★Hope to set up（5） to show people the importance of environmental protection． |
Cloze test (本题共15分，每小题1分)Choose the best answer to complete the passage.
Blue Bear lives in a little house near a hill.
One spring, it was time to plant his tomato plants, Blue Bear went to work in his new .Very carefully, Blue Bear planted each little plant in his garden.
All the summer, he took care of the garden and the plants. Sometimes he would sit by the garden, his fruit juice.
Near the end of the summer, the tomatoes were fat and red. Blue Bear quite a lot and took them into his little house. He thought, “Mummy, I have tomatoes. Now I think it’s time to bread!”
With his pan he began to make bread. It _ him only a few minutes to finish it. The whole house was filled with a wonderful . Then he cut the tomatoes and made a big sandwich.
He was so happy that he ran out the house, singing and jumping. And when he really felt a little ,he thought of his sandwich and went into the house. Just when he was taking up the , he saw Mr. White come.
“ I stay with you tonight? I’m just too tired to walk on. ”
“Yes, please!” answered Blue Bear, and each enjoyed half of the sandwich. Blue Bear was happy that he was able to help someone who needed help.A. when B. which C. but
A. house B. school C. garden
A. tree B. tomato C. potato
A. pulled B. pushed C. watered
A. eating B. buying C. drinking
A. picked B. cooked C. found
A. eat B. drink C. make
A. took B. had C. paid
A. smell B. drink C. cheese
A. into B. near C. of
A. happy B. hungry C. angry
A. by B. back C. past
A. juice B. plant C. sandwich
A.Must B. May C. Do
A. it B. she C. they
Are you afraid of going to the dentist（牙医）？ If so， you're not alone．
These fears could just be in our heads， however． According to a recent survey by Martin Tickle， a professor at Manchester University in the UK， the pain isn't felt most of the time in dental surgeries（牙科手术）． In fact． among the 451 interviewed patients，75% reported no pain at all during their visits， including situations when they had their teeth pulled out．
Could it be the sound of the drill（钻头）then？
"I found that the sound of drilling can evokedeep worry in dental patients． Actually they don't have any pain． " Hiroyuki Karibe， a scientist at Nippon Dental University in Tokyo， told the Guardian．
To find the reason why a drill might bring on a racing heart， Karibe divided the volunteers into low﹣fear and high﹣fear groups based on how much they feared a trip to the dentist． Volunteers were played the sound of a drill while their brain activities were watched by a machine．
What Karibe found in the low﹣fear group was increased activity in the areas of the brain relative to auditory processing（听觉处理）， which means， for these people， the sound of dental drills is no different from other sounds
In the high﹣fear group， however， the brain area that was activated（激活）was different． It was the area that carries out a number of duties， including learning， feelings and， most importantly， memory． This means that these volunteers not only heard the sound， but they remembered it﹣they made connections between the sound of a drill and the worry it produced in the past， causing their worry to return．
Understanding how brains reply to the sounds of dentists ' drills could help scientists find ways to make patients more relaxed， according to Karibe， because patients who worry about going to the dentist might keep putting off their visits． But the best way is to keep your teeth healthy．
根据短文内容，选择最佳选项，并在答题卡上将选定答案的字母标号涂黑．
（1）How does the writer explain that the pain isn't felt most of the time in dental surgeries？
| A． |
By showing facts with numbers． |
| B． |
By asking questions one by one． |
| C． |
By giving examples group by group． |
| D． |
By comparing results of patients． |
（2）According to the fourth paragraph， what does the word " evoke" mean in Chinese？
| A． |
减轻 |
| B． |
引起 |
| C． |
显示 |
| D． |
阻止 |
（3）How did the sound of drilling produce different results to the volunteers in the study？
| A． |
It produced some worry in the volunteers in the low﹣fear group |
| B． |
For the low﹣fear group， it activated the brain area dealing with learning， feelings and memory |
| C． |
For the high﹣fear group， it caused more activities in the brain area relative to auditory processing． |
| D． |
It made people in the high﹣fear group remember their past uncomfortable memories |
（4）What is the last paragraph mainly about？
| A． |
How the study might be useful． |
| B． |
Some new ways to treat teeth |
| C． |
The proper way to treat dental patients． |
| D． |
The importance of keeping our teeth healthy． |
（5）What's the purpose of the passage？
| A． |
To show us different areas of fear in brains． |
| B． |
To introduce us a recent survey by a scientist． |
| C． |
To help us have less fear of a trip to the dentist． |
| D． |
To make it clear that the sound of drilling is not terrible． |
As everyone knows, there are many 16 of transportation in the world, like bicycles, buses, ships, trains and 17 .
If you are in big 18 like Shanghai or Beijing, maybe you get to school 19 a subway or you have to 20 to school because you live in a mountain village. Here I am just trying to say something about 21 .
Ten years 22 , bicycles were very 23 in most villages. 24 family had one or two of bicycles. Children got to school by bicycle; 25 rode bicycles to go shopping. Then motorcycles (摩托车) 26 to become popular. People no longer rode bicycles because motorcycles ran 27 faster. But now, in some countries，bicycles are highly suggested
28 the main means of transportation. They think buses, cars and motorcycles pollute(污染) the air but bicycles 29 . So, to live a low-carbon life, 30 a bike is a good way.
A．kind B．kinds C．mean D．way
A．other B．others C．the other D．another
A．cities B．countries C．villages D．countryside
A．on B．by C．in D．of
A．on foot B．walk C．walks D．runs
A．bicycles B．motorcycles C．buses D．cars
A．later B．before C．ago D．after
A．cheap B．important C．expensive D．popular
A．All B．Both C．Every D．Most
A．women B．boy C．woman D．girl
A．begin B．began C．begun D．start
A．more B．much C．less D．most
A．for B．in C．at D．as
A．not B．don’t C．doesn’t D．didn’t
A．riding B．rides C．rode D．ride
完形填空（本题共15分，每小题1分）
The telephone rang in the police station at Richmond, California, US. “ station? A train for Santa Fe collided (相撞) a at the McDonald Street Crossing. Please come here at once. With an ambulance(救护车)，too. A man is badly wounded,” said a(n) voice of a young woman.
“OK. We’ll come soon. Please stay there and wait.” Replied the policeman.
Within a minute, a police car and an ambulance off. Soon they got to the crossing, but only to find everything was . No collision, no wounded man.
“What a dirty !” said the policeman angrily. “ We must find out that mischievous (恶作剧) and…”They had not been able to say anything about a when they heard the whistle of a train was nearing them quickly. All of a sudden, a truck appeared. It came towards them, too. When it was passing the crossing, it suddenly to move on. Right then and there, before the eyes of all the people present, the train collided with the truck heavily and struck it dozens of metres away.
When Randolph Bruce, the driver , was helped out of the damaged truck, he was badly wounded just as the young woman had foretold (预言) on the phone. As he was taken to hospital in time, he was at last. Later the police did whatever they could to the woman who had them, but failed.
It is really that a prophecy(预言) should agree with the fact so .
A．Weather B．Railway C．Fire D．Police
A．bus B．truck C．taxi D．train
A．sweet B．anxious C．beautiful D．low
A．turned B．took C．started D．walked
A．bad B．satisfied C．pleasant D．fine
A．call B．lie C．trick D．plan
A．policeman B．boy C．woman D．driver
A．reward B．praise C．thanks D．punishment
A．turning B．running C．starting D．passing
A．continued B．refused C．began D．stopped
A．saved B．dead C．awake D．alive
A．find B．meet C．punish D．thank
A．laughed B．telephoned C．repeated D．visited
A．exciting B．surprising C．pleasing D．interesting
A．equally B．truly C．exactly D．carefully
A man named Randy in Canada liked to hunt for trees． He looked for big trees and old trees in Canada． He made maps to show where these trees were． He did not want to cut them down． Actually he wanted people to take care of them．
Ancient trees are today rare （稀少的） everywhere in the world． On Vancouver Island in Canada， there are so many big trees． The biggest trees are about 800 years old． They are the survivorsof a forest fire． The fire brought damage （损害） to the area about 350 years ago． Randy was told of a very tall tree on Vancouver Island． The tree was said to be 314 feet tall． That would make it the tallest tree in Canada． Randy set out to find the tree．
But someone else found it first． It was found by a logger﹣a person whose job is to cut down trees． The loggers wanted to cut down Canada's tallest tree and all the trees around it．
Randy made a path （小路） in the forest in order that people could see the tall tree． The tree was so big and beautiful that even more and more people wanted to save that forest． Thanks to these people， that forest is now a park． Canada's tallest tree is still there．
There may still be a bigger tree out there． Maybe you will find it． But there are only a few old forests left in Canada． Many are still at risk of being cut down．
（1）Why did Randy make maps？
| A． |
To look for more big trees． |
| B． |
To show the positions of the big and old trees． |
| C． |
To cut trees down later． |
| D． |
To help loggers． |
（2）The underlined word "survivor" means in Chinese．
| A． |
受益者 |
| B． |
制造者 |
| C． |
控制者 |
| D． |
幸存者 |
（3）What did the loggers want to do with Canada's tallest tree？
| A． |
They wanted to take care of it． |
| B． |
They wanted to save it． |
| C． |
They wanted to cut it down． |
| D． |
They wanted to know its height． |
（4）Which of the following is NOT true？
| A． |
Randy is from Canada． |
| B． |
The fire happened about 350 years ago． |
| C． |
Randy made a path in the forest |
| D． |
Canada's tallest tree is cut down now． |
（5）What happened to the forest according to the passage？
| A． |
It has disappeared． |
| B． |
It became a park． |
| C． |
It was not famous anymore． |
| D． |
The passage doesn't mention it． |
完形填空
More and more Americans are going to work by bike. Do you know why more people are bikes to work? We can answer the question in ways. First, bikes don’t need gasoline (汽油), so it takes money to use them. Second, a bike doesn’t much space (空间), so it is to find a place for it. And riding a bike is good for one’s . People often drive their to offices or to shops, but now people think riding bikes is a good way of doing sports.
That’s more Americans are now going to work bike, and they are their own cars at home.
A．making B．riding C．jumping D．believing
A．popular B．different C．famous D．friendly
A．less B．more C．much D．many
A．mend B．need C．have D．find
A．easy B．hard C．cheap D．expensive
A．journey B．health C．study D．work
A．buses B．trains C．cars D．boats
A．what B．why C．how D．where
A．by B．on C．at D．in
A．cleaning B．leaving C．staying D．learning
Influenza， or flu（流感）， is a type of virus． It spreads from one person to another quickly． When someone who has the flu coughs or sneezes， little droplets from their lungs （肺） spread out into the air．Anyone nearby can get sick． Even a person who touches something with the virus and then touches his or her mouth， eyes， or nose， can become infected（感染）．
The outbreak of the 1918 influenza infected about 500 million people worldwide． It killed from 20 million to 50 million people． It was first seen in Europe， the United States， and parts of Asia．It then spread quickly around the world． Many people who became sick were young， healthy adults．At the time， no treatments worked in the prevention of the spread of the killer flu． People were ordered to wear masks． Schools， theaters and other public places were closed．
When the first wave（波＞in the spring of 1918 hit， it didn't seem serious． People who were infected felt the usual flu symptoms（症状）， which are chills， fevers， and feeling tired． Those who got sick generally got better after several days． Not many died． However， a second， highly contagious（传染的）wave of influenza appeared in the fall of that same year． Victims died shortly after they were infected ﹣ within hours or days． Their skin turned blue and their lungs were filled with liquid（液体），making it very difficult to breathe．
By the summer of 1919， the flu pandemic（大流行病） came to an end． Sick people had either got well or died． Almost 90 years later， in 2008， researchers announced they'd discovered why the 1918 flu was so deadly． The flu virus inflamed （使…恶化）the lungs， causing them to fill with liquid．
Since 1918， there have been several other influenza pandemics， although none has been quite as deadly．
（1）What information about the 1918 flu is mentioned in the passage？
A． The reason why it was so deadly．
B． The reason why it ended．
C． The change it caused to medical research．
D． The place in which it was last seen．
（2）All the people that were infected with the 1918 flu ．
A． had blue skin that led to their death
B． had touched someone with the virus
C． died as their lungs were filled with liquid
D． had the virus in their bodies that made them sick
（3）Which of the following statements about the 1918 flu is TRUE according to the passage？
A． Wearing a mask was the best way to treat it．
B． A younger person had a lower risk of being infected with it．
C． People expected the coming of its second wave， but couldn't stop it．
D． It was deadlier than any other influenza pandemic in modern history．
It is everyone's duty to help animals to stop extinction （灭绝）． As a student， there are so many things you can do yourself too! Please look at the following tips （建议） to help the endangered animals．
Send a letter to your local environment protecting center and show how you feel about the quick extinction of animals． Use the facts to write what you have found． Give some advice to the officers who make the strong rules to save animals．
Draw pictures and make a poster． Put this poster somewhere at school or where people will usually see it． Add some texts in the sign to make it clear why you care about the loss （丧失） of animals． It may encourage people to do something to protect the animals．
Avoid buying things that come from endangered species （物种）． When you travel， be careful about what you buy． You shouldn't buy things made from endangered animals or endangered tree species from forests that the animals live on．
Watch your diet． Before eating meals， you should see if you will break a food chain． If you see somebody doing something bad for the food chain， please stop him at once．
（1）Who make rules to save the endangered animals？
（2）Where should we put the poster？
（3）Is it right to buy a gift made of ivory （象牙） while travelling？
（4）Why should we watch our diet？
（5）What is the writer's purpose according to the passage？
完形填空（10小题，每小题1分，共10分）
All living things on the earth need other living things to live with. Nothing lives . Sometimes one living thing kills . Each kind of life eats another kind of life live, and together they form a food chain(食物链). Some food chains are simple, while others are not. But food chains begin with the sun, and all food chains become if one of the links disappears.
All life needs sunlight to live on. But only plants can use directly(直接地). They make food from sunlight, water, air and so on. Animals can only use the sun’s energy it has been changed into food by plants. Some animals feed directly on plants. Others eat smaller animals. Meat-eating animals are only plants indirectly.
What about human beings? We are members of many food chains. We eat wheat, rice, vegetables, fruit and so on. We also eat meat and drink milk. But often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes and seas are polluted, the fish in them be eaten. If people eat the fish, they will get strange diseases.
Each form of life is linked to all the others. Breaking the links puts all life in danger.
A．alone B．lonely C．together D．happily
A．other B．the other C．another D．the others
A．for B．so that C．and D．in order to
A．any B．all C．some D．most
A．better B．broken C．stronger D．nicer
A．moonlight B．laser light C．sunlight D．bright light
A．after B．before C．until D．by the time
A．making B．catching C．eating D．feeding
A．sunlight B．animals C．plants D．people
A．can B．cannot C．must D．needn’t
完形填空（10小题，每小题1分，共10分）
You may have heard that many animals are endangered. What does that mean ? Endangered means there are very few of that kind still . Someday they might die out. You may wonder people can do to help endangered animals.
People some ways to protect plants and animals from becoming endangered or extinct. One way is to protect the animals' or plants' habitats. Some governments have set aside for parks. No one to disturb the habitat inside park lands. People cannot build houses there. They cannot hunt animals. No one can collect plants or animals from the park. Mining and drilling(打孔) for oil is prevented in parks.
People have made the laws to protect plants and animals. Laws be made to protect habitats. Hunting laws do not allow people to hunt certain animals. Some laws limit the of trees that can be cut down in forests. Other laws that people cannot build homes, factories, or stores in certain places. Laws can protect the air and water from pollution.
A．actively B．carefully C．exactly D．wonderfully
A．alive B．alone C．afraid D．aggressive
A．when B．how C．what D．where
A．were making B．have made C．are making D．had made
A．houses B．trees C．lands D．buildings
A．is allowing B．was allowing C．allowed D．is allowed
A．around B．beside C．outside D．inside
A．may B．can C．must D．might
A．kind B．number C．height D．size
A．say B．tell C．talk D．write
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