2020-2021学年高中英语北师大版必修3-双基限时练20.docx

双基限时练(二十)　Unit 9　Grammar 2
Ⅰ.单句语法填空(不多于3个单词)
1．He ________________ (write) articles for our wall－newspaper these days, and he ________________ (write) about thirty articles.
答案　has been writing; has written
2．She ought to stop working, she has a headache, because she ________________ (read) all the time.
答案　has been reading
3．The little boy is dirty from head to foot, because he ________________ (play) in the mud all the morning.
答案　has been playing
4．Robert ________________ (give) me his address the other day, but I'm afraid I ________________ (lose) it.
答案　gave; have lost
5．— Kate doesn't look very well. What's wrong with her?
— She has a headache because she ________________ (do) her homework from this morning, she ought to stop working.
答案　has been doing
6．— Would you like to read books this evening?
— Sorry, I ________ (read) books for a whole day.
答案与解析　have been reading　语境中含有埋怨的心情，现在完成进行时正可以表达这种感情。
7．It is said she is writing a book but I wonder if she ________ (finish) it.
答案与解析　has finished　表示到目前为止是否已做完或做过某事通常用现在完成时。将来完成时表示动作发生在将来某个时间或某个时间以前；finish为非连续动词，不能用现在完成进行时。
8．— Have you had a good evening?
— Well, I ________ (watch) the film on television but it's dull so I want to turn it off now.
答案与解析　have been watching　由后半句可知“看电视”的动作从过去开头，但是始终在持续，可能会连续进行下去，故用现在完成进行时。
9．— Would you like to go to Shanghai?
— Yes. In the last ten years, great changes ________ (take) place in Shanghai.
答案与解析　have taken　“in the last/past＋时间”是现在完成时的标志性时间状语。take place不能用被动语态。
10．The crazy fans ________ (wait) patiently for two hours, and they will wait till the movie star arrives.
答案与解析　have been waiting　由前半句中的时间状语for two hours可知动作为持续性的，且表示已经发生的动作；由下半句中will wait可知动作仍将持续下去，故用现在完成进行时。
11．I'm glad to see that you ________ (make) a lot of progress since I met you last.
答案与解析　have been making　since引导的时间状语从句用一般过去时；空白处强调动作截止到现在，但是有可能还连续进行下去，故用现在完成进行时表示。
12．Linda feels exhausted because she ________ (have) so many visitors today.
答案与解析　has been having　用现在完成进行时表示动作从过去开头，始终持续到现在，还有可能连续进行下去。
13．— Look! Somebody ________ (clean) the sofa.
— Well, it wasn't me. I didn't do it.
答案与解析　has cleaned　句意：——瞧，有人擦过沙发了。——哦，不是我，我没有擦过沙发。依据句意可知，空处表示有人已经做过某事了，故用现在完成时。
Ⅱ.完形填空
In some countries, people eat rice every day. __1__ they eat it two or three times a day, for breakfast, lunch and supper. They can __2__ it, fry (煎) it or __3__ it into rice noodles. They usually eat it __4__ meat, fish and vegetables.
Some people do not eat some kind of __5__. Muslins, for example, do not eat pork, and Hindus do not eat beef. The Japanese eat a lot of fish. Japan is an island and its __6__go all over the Pacific (太平洋) looking for fish to __7__.The Japanese sometimes eat uncooked fish，and they also eat a lot of rice.
In __8__ such as Britain, Australia and the United States, the most important food is __9__ or potatoes. People there usually make their bread from wheat flour (面粉). They __10__ potatoes in different ways. They can boil them，fry them and roast (烤)them
In Africa，maize (玉米) is the most important food.__11__ rice and wheat，maize is a kind of cereal (谷物). African people make the maize __12__ flour. From this flour they make __13__ kinds of bread and cakes. Many Africans are very __14__ and they can't afford to eat much __15__ with their cereal. Cereals are a very important kind of food __16__ we also need plenty of vegetables and lots of fresh __17__.
Some people eat __18__ fruit and vegetables. They do not eat meat or fish or __19__ that comes from animals. They eat only food from __20__. Some people say that food from plants is better for us than meat.
1．A. Sometimes B. Sometime
C. Some time D. Some times
2．A. drink B. eat
C. have D. boil
3．A. make B. turn
C. change D. eat
4．A. as B. like
C. with D. together
5．A. apples B. fish
C. meat D. vegetables
6．A. trains B. planes
C. fishing boats D. life boats

7．A. buy B. weigh
C. hold D. catch
8．A. the world B. countries
C. the east D. developing countries
9．A. bread B. cake
C. flour D. vegetables
10．A. cook B. eat
C. make D. take
11．A. Like B. As
C. Being D. With
12．A. of B. from
C. into D. up to
13．A. the same B. different
C. every D. each
14．A. rich B. poor
C. strong D. weak
15．A. meat B. maize
C. flour D. bread
16．A. so B. as
C. because D. but
17．A. rice B. cakes
C. fruit D. potatoes
18．A. not only B. only
C. besides D. except
19．A. something B. anything
C. pork D. beef
20．A. plants B. apples
C. pigs D. fish
答案与解析
1．A　sometimes“有时”；sometime“某个时间”；some time“某一段时间”；some times“几次”。有时人们一天吃几次米饭，选择A项。
2．D　从后面的句子：fry(煎)it or __3__ it into rice noodles可知这里指做饭的方式，选择D项。
3．A　make ... into ...“把……做成”，人们还把米做成面条，选择A项。
4．C　他们经常是和肉，鱼，菜一起吃，选择C项。
5．C　从后面的“Muslins, for example do not eat pork, and Hindus do not eat beef.”可知有的人不吃某一种肉，选择C项。
6．C　从后面的looking for fish to __7__.可知，日本的渔船跑遍了太平洋，选择C项。
7．D　日本的渔船找可以捕的鱼。选择D项。
8．B　从后面的“such as Britain, Australia and the United States，”可知是这些国家，选择B项。
9．A　后面的句子“People there usually make their bread from wheat flour(面粉)．”可知，这些国家的主要食品是面包和土豆，选择A项。
10．A　从后面的句子“They can boil them, fry them and roast(烧) them.”可知，他们可以用不同的方式烧土豆，选择A项。
11．A　从后面的句子“maize is a kind of cereal(谷物)”可知，玉米也是一种谷物，选择A项。
12．C　make ... into ...“把……做成”，人们把玉米做成面粉，选择C项。
13．B　用这个面粉，人们做成不同种类的面包和蛋糕。选择B项。
14．B　从后面的“they can't afford to eat much __15__ with their cereal.”可知，很多非洲国家很穷，选择B项。
15．D　他们吃不起用谷类做的面包，选择D项。
16．D　谷类是格外重要的食物，但是他们也需要一些蔬菜和鱼类。选择D项。
17．C　蔬菜和水果是一类的，选择C项。
18．B　not only“不仅”；only“仅仅”；besides“此外”；except“除了”，从后面的句子“They do not eat meat or fish of __19__ that comes from animals.”可知，有的人只吃蔬菜和水果，选择B项。
19．B　他们不吃来自动物的任何东西，选择B项。
20．A　从后面的句子“Some people say that food from plants is better for us than meat.”可知，他们只吃来自植物的食物，选择A项。
Ⅲ.阅读理解
Here are two cars that may some day take the place of today's big automobiles. If everyone drives such a car in the future, there will be less pollution in the air. There will be more parking space in cities，and the streets will be less crowded. Three such cars can fit in the space now needed for one car of the usual size.

The little cars will cost much less to own and to drive. Driving will be safer，too，as these little cars can go only 65 kilometres per hour.
The cars of the future will be fine for getting round a city, but they will not be useful for long trips. If the car is powered by electricity, it will have two batteries，one for the motor and one for the horn，signals，etc. Little cars which are powered by gasoline will go 450 kilometres before needing to stop for more gasoline.
If big cars are still used along with the small ones, two sets of roads will be needed in the future. Some roads will be used for the big，fast cars，and other roads will be needed for the small, slower ones.
1．What is the advantage of the small cars?
A. There won't be so much pollution and the small cars won't be so expensive as the big ones.
B. It will be safer to drive these small cars.
C. There will be more space for cars to park.
D. All the above.
答案与解析　D　短文中的相关信息“there will be less pollution in the air”、“The little cars will cost much less to own and to drive”和“Driving will be safer”、“There will be more parking space”表明A、B、C三项均为这种汽车的优点。
2. Why is it safer to drive these small cars?
A. The speed of these cars is unlimited.
B. The speed of these cars is limited.
C. The streets won't be so crowded.
D. The cars need only a little space.
答案与解析　B　依据其次段中的“... as these little cars can go only 65 kilometres per hour.”可以推断出其速度是有限的。
3. What are the two cars mentioned in the passage?
A. One which is good for getting round a city and one which is not useful for long trips.
B. One which is powered by electricity and one which is powered by gasoline.
C. One which is powered by electricity and one which is powered by sunlight.
D. One which costs less and one which runs slowly.
答案与解析　B　从第三段中的“If the car is powered by electricity, ...Little cars which are powered by gasoline...”可知答案。
4. Two sets of roads are necessary in the future in order to ________.
A. prevent road accidents
B. make the city more beautiful
C. let small cars run fast
D. limit the speed of cars
答案与解析　A　通过对小汽车速度、性能等的一系列描述，可看出它与大汽车存在很大的差异，尤其在速度上，快慢车相间而行驶速度不等很可能造成交通事故。