Unit 2 Lesson 4 Class Project重难点知识讲解及基础练习 （含答案）

Unit 2 Lesson 4 Class Project
重难点知识讲解
1. 情态动词(Modal Verbs)
情态动词是表达说话人对动作或状态的看法或主观设想的动词。情态动词一般出现在动词原形前面与之一起构成谓语。例如：
You can use wood, paper and glue but you mustn't use other things.
你可以用木料、纸张和胶水，但是不得使用其他材料。
You must make two musical instruments with plastic bottles.
你必须用塑料瓶做两件乐器。
You can't use materials from toys or real instruments.
你不能用玩具或真正乐器上的材料。
2. can, must 和have to 的区别
肯定/否定形式及意义 例句
can can能够，会，可以 You can bring a video camera or a mobile phone from home. 你可以从家带来一台 摄像机或者手机。
cannot (can’t)不能够，不会，不可以 You can use paper and glue but you cannot use metal 你能使用纸和胶水，但你不能使用金属。
must must必须，一定要（表示说话人的主观意图和个人感情） You must play the film in class and introduce your group in three minutes. 你必须在班里播放电影，并在三分钟内介绍你们的小组。
must not(mustn’t)禁止（语气强硬） You can interview people in your group but their answers mustn't be long. 你可以采访你们组内的成员，但他们的回答一定不要太长。
have to/has to不得不，必须（与must相比，have to 含有“客观条件使得必须如此做”的意思） The film has to be in English. 电影必须是含英文对白。 (英语课的展示活动，因而客观要求必须是英文）
have to do not/does not have to没有必要 Next class, you must describe your building but it doesn't have to be long. 下节课，你业指达你的建筑作品，但是设有必要耗时太长。
基础练习
一、短语互译。
1. 准时___________________ 2. 当着…面；在…前面__________
3. 用两根筷子_____________ 4. 用英语____________________
5. 必须，不得不 ___________ 6. use mobile phones after class____
7. build a model of ..._________ 8. plastic bottles________________
9. eat in class________________ 10. play football in the playground__
二、根据中文意思，完成句子。
1. 禁止在便道上骑车。
You _______________________ on the sidewalk.
2．在英国，你必领沿马路的左侧行驶。
In England, you ____________ on the left side of the road.
3. 你能使用纸和胶水，但你不能使用金属。
You ___________________ , but you ____________ metal.
4. 你必须在全班同学面前播放电影。
You must ___________________ all the class.
5. 你必须描述你的建筑作品但是没有必要耗时太长。
You _______________ but it _________________ be long .
三、单项填空。
1.—— _____ you sing an English song
——Yes, I can.
A. Can B. May C. Must D. Need
2. ——Mum, must I wash the dishes right now
——No, you _____ .
A. shouldn't B. wouldn't C. mustn't D. needn't
3. You _____ talk to your mother like that. It's not polite.
A. may not B. needn't C. mustn't D. don't have to
4. ——Can you ride a horse
——No, I _____ .
A. needn't B. may not C. can't D. mustn't
5. ——Look here, please. Who can do this problem
——I _____ , Miss Li
A. can B. need C. should D. must
6. I'm sorry. I _____ go now. My father told me on the phone that my mother was ill.
A. can B. may C. have to D. would
7. These people are good pilots. They _____ fly very well
A. can B. may C. need D. must
8. We _____ follow the new traffic law and learn how to protect ourselves.
A. may B. should C. can D. need
9. ——May I put my bike here
——No, you _____ . You should put it over there.
A. couldn't B. needn't C. mustn't D. won't
10. It's the library! So you _____ make any noise here.
A. mustn't B. won't C. may D. need
四、从方框中选择合适的单词填空，完成短文。
instruments, describe, musical, paper, bottles, playground, chopsticks, glue
Build a model of a famous building. You can use wood, 1. _____ and
glue but you mustn't use other things. You have to paint the model. Next class, you must 2._____ your building but it doesn't have to be long.
You must make two 3 ._____ instruments with plastic 4. _____ . You can't use materials from toys or real instruments. In class, you have to play
some music with the 5. _____ for three minutes.
You must make a plane with two 6._____ . You can use paper and 7. _____ but you can't use metal. You must test your plane in front of your
teacher and your classmates in the 8. _____ . It has to fly for ten seconds.
五、阅读短文，根据短文内容选择最佳选项。
Save the Game
The basketball final between Perfect School and Sunrise School now enters a white-hot stage. There are only fifteen seconds left(剩下). Sunrise School is onepoint ahead(领先) . Mitchell, who is one of the best players of Perfect School, is now keeping the ball. The students are extremely excited. They cannot help standing up and shouting, "Go! Mitchell!" Other teammates also encourage Mitchell, “Take a shot(进球），boy!”
Mitchell knows it will be the last shot. He hesitates (犹豫）and falls into careful thinking. He imagines that he shoots from the halfway line. The hall turns quiet. All eyes follow the track(轨迹）of the basketball. It jumps round the ring over and over again and finally rolls out of the court. The world turns noisy. Mitchell sees his coach lower his head, his teammates kneel down and his fans cry. It gives him so much pain. It is the last match for his coach before leaving. All the teammates practised hard and hoped to give their coach a perfect ending. But now, the bubble bursts（破裂）。
“Is that what you want ” Mitchell asks himself. “Certainly not. But how can I change the situation Teamwork!" Mitchell returns to reality from his thinking. He does not have a shot by himself but surprisingly passes the basketball to his teammate, Jack, who is standing near the basket. Jack catches the basketball and quickly scores a two-point shot. There goes the whistle at the same time. Perfect School finally wins the game.
1. When there are only fifteen seconds left , _____ .
A. the students are surprised
B. Mitchell's coach is shouting
C. Sunrise School is one point ahead
D. Perfect School is two points ahead
2. How does Mitchell help his team win the game
A. He tries to stand near the basket.
B. He passes the basketball to Jack.
C. He shoots from the halfway line.
D. He quickly scores a two-point shot.
3. What can we learn from the story
A. Teamwork helps win the game.
B. Jack is the most popular player.
C. The coach will retire next year.
D. The hall turns quiet after the final shot.
参考答案
一
1. on time 2. in front of 3. with two chopsticks 4. in English
5. have to 6.课后使用手机 7.做一个…的模型 8.塑料瓶
9. 课上吃东西 10. 在操场上踢球
二
1. mustn't ride a bike
2. must drive
3. can use paper and glue; can't use
4. play the film in front of
5. must describe your building; doesn't have to
三
1~5 ADCCA 6~10 CABCA
四
1. paper 2. describe 3. musical 4. bottles
5. instruments 6. chopsticks 7. glue 8. playground
五
1~3 CBA