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9B Unit1 课时练习4(Grammar)
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9B Unit l Life on Mars
课时练习4 (Grammar)
一、根据句意及所给首字母或中文提示，完成下列句子
1．He asked_________(是否)they needed some more books or not．
2．Anything that is dropped falls towards the ground because of the force of_________(重力)．
3．Some scientists do not believe that the_________(旅程)to Mars will be very comfortable．
4．About four-________(五)of the books in our 1ibrary are written in Chinese．
5．It’s c________ that every effect must have a cause．
二、用所给单词的适当形式填空
1．This problem always__________(worry)me．
2．I can imagine what the place is going to look like in a few_________(year)time．
3．Li Lei came into the classroom_________(quiet)when he was 1ate．
4．You can experience the__________(beautiful)of the old park if you go there．
5．The workers are made___________(work)all day,
三、单项填空
( )1．一May I watch TV this Thursday? There’s a live football match．
一_________．You may only watch TV at the weekends．
A．Yes，you may． B．No，you mustn’t
C．Yes，you can D．No，you needn’t
( )2．I didn’t know __________they could pass the exam or not．
A．why B．when C．that D．whether
( )3．You ________go and ask Daniel．He __________know the answer．
A．must；can． B．must may C．need；can D．can may
( )4．Can you tell me________people are going to move to Mars?
A．what B．who C．whether D．that
( )5．Do you know________a report on English learning tomorrow morning?
A．is there B．there is going to have
C．will there be D．there is going to be
( )6．一Could I get you something to drink? 一_________．I'm thirsty．
A．Yes，please B．No，thanks C．You are welcome D．Here you are
( )7．一The book________be Tom’s．
一No，it________be his．There’s a name on the book．It’s Jim’s．
A．must；mustn’t B．may；mustn’t C．can；can’t D．may；can’t
( )8．一Could I look at your pictures?
—Yes，of course you __________．
A．could B．can C．will D．might
( )9．一Sam，do you know if Alice to my party next week?
一I think she will come if she_________free．
A．come；is B．comes；will be
C．will come； D．will come；will be
( )10．The customers are pleased with the _________of the restaurant．
A．balance B．experience C．surface D．service
四、完形填空
If we take a close look at successful language learners．we may discover a few techniques
(技巧)which make language learning easier for them．
1 ，successful language learners are independent learners．They do not depend on(依赖)books or teachers；they 2 their own way to learn the language．They try to find the patterns and the rules for themselves 3 waiting for the teacher to explain everything．They are good guessers who look for clues and form their 4 conclusions which are very different from others’．
Successful language learning is 5 learning．Therefore．successful learners do not wait for a chance to use the language；they 6 ．such a chance．They．find people who speak the language and ask these people，to correct them 7 they make mistakes．They will try anything to communicate．When communication is difficult．they can 8 information that is incomplete(不完整的)．It is more important for them to learn to 9 in the language than to know the meaning of every word．
Finally，successful language learners are learners with a 10 in order to communicate with these people and learn from them．They want to 1earn a language because they are interested in the language and the people who speak it．It is necessary for them to learn the language．
( )1．A．As usual B．First of all C．By the way D．So far
( )2．A．explain B．make C．discover D．change
( )3．A．instead of B．after C．because of D．from
( )4．A．correct B．own C．only D．main
( )5．A．ideal B．informal C．early D．active
( )6．A．look for B．care about C．work out D．write down
( )7．A．until B．whether C．before D．when
( )8．A．break B．check C．download D．accept
( )9．A．agree B．ask C．think D．read
( )10．A．purpose B．certificate C．guide D．question
五、阅读理解
Every time you turn on the television or take a ride in a car ,you could be adding to a problem called acid rain(酸雨). In this article, you’ll learn how acid is created, and how it affects us, and more importantly, what we all can do to prevent it.
How is acid rain created?
When people use fuels(燃料), such as coal and gasoline, poisonous gases are give off. When these gases mix with rain, acid rain forms. Many power stations burn fuels in order to creat the electricity(电) that we use in our homes and offices every day. Cars and trucks also send these gases into the air when they burn gasoline .When rain mixes with these gases, harmful things called acids form. This is acid rain.
How does acid rain affect us?
Acid rain damages(毁坏)everything that it touches. It poisons our rivers, ponds, lakes, and oceans along with all the life in them. It pollutes our soil and crops, harms trees, and can even kill fish and plants. Acid rain also eats away at buildings.
How can we prevent acid rain?
We need to cut down on the pollution that gets into our air. Turn off lights, television, and other electrical appliances if you are not using them, Walk or take a bike whenever possible. If you are travelling a long distance, take a bus or train to save fuel.
As research shows, acid rain harms our environment. But people everywhere can take small steps now to help protect our environment for future generations.
( )1. When power stations burn fuel,_______.
A. acid rain form B. air pollution is caused
C. noise pollution is caused D. acid rain gets heavier
( )2. According to the article, acid rain affects us _______.
A. suddenly B. slightly C. seriously D. immediately
( )3. What advice does the article give us?
A. Go to school on foot or by bike if we can.
B. Go to bed earlier in order to use less electricity.
C. Travel by bus to prevent acid rain.
D. Turn off the television on rainy days.
( )4. What is the best title of the article?
A. Preventing Acid Rain B. Forming of Acid Rain
C. Acid rain, Heavy Rain D. Acid Rain, Killer Rain
六、句子翻译．
1．你可以告诉我怎样去邮局吗?
________________________________________________________________________
2．老师告诉我们可以明天交作业。
________________________________________________________________________
3．如果你想借这本书，你可以借两个星期。
________________________________________________________________________
4．我不能肯定明天我是否有空。
________________________________________________________________________
5．我认为他们还没有去过美国。
________________________________________________________________________
6．我不知道他昨天为什么没去参加聚会。
________________________________________________________________________
参考答案
一．1．whether 2．gravity 3．journey 4．fifths 5．certain
二．1．worries 2．years 3．quietly 4．beauty 5．To work
三．BDDCD／ADBCD
四．BCABD／ADDCA
五．BCAD
六．1．Can you tell me how to get to the post office?
2．The teacher told us we can tomorrow hand in your homework．
3．If you want to borrow this book, you can keep it for two weeks．
4．I'm not sure whether I be free tomorrow．
5．I think they haven't been to the United States．
6．I don't know why he didn't go to the party yesterday．
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