Unit 7 Teenagers should be allowed to choose their own clothes.
Section A 3 (Grammar Focus-4c)
I. Grammar Focus
根据课本内容,完成下列句子。
1. 我认为不应该允许十六岁的孩子开车。
I don’t think sixteen-year-olds ______ __ _______ to drive.
2. 我同意。他们还不够严谨。
I agree. They aren’t serious enough.
3. 你认为应该鼓励青少年去自己做决定吗?
Do you think teenagers ______ __ __________ to make their own decisions?
4. 不,我不认同这个。青少年还太小不能自己做决定。
No, I don’t agree with this. Teenagers are ____ ______ __ make their own decisions.
5. 不应该允许青少年去做兼职。
Teenagers ______ ___ __ _______ to have part-time jobs.
6. 不,我不同意。他们可以从工作当中学到很多。
I disagree. They can ______ a lot _______ working.
7. 你认为如果不用闪光灯的话可以允许我们拍照吗?
Do you think we ____ ___ _______ to take photos if we don’t use a flash.
8. 如果不用闪光灯的话,那么拍照是可以的。
If you don’t use a flash, then it may be OK.
II. 含有情态动词的被动语态
在前面我们已经学习了一般现在时的被动语态和一般过去时的被动语态,它们的结构为:are/ is +及物动词的过去分词, were/ was+及物动词的过去分词。
本单元我们主要了解含有情态动词的被动语态。
观察例句中含情态动词被动语态的各种形式,补全结论中所缺的内容。
【例句】
1. Many trees should be planted in the mountains. 应该在山上种许多树。
含有情态动词的被动语态的结构为:情态动词+____+及物动词的_________。
2. This problem can’t be worked out very easily. 这道题轻易算不出来。
变为否定句时只需要在情态动词后加_____。
3. You can take this book home. (改为被动语态)
→This book can be taken home (by you).
含有情态动词的主动语态变为被动语态时,要把主动语态的_____变成被动语
态的主语。
4. —Should the car be washed now?
—Yes, it should. / No, it shouldn’t.
汽车必须现在洗吗?
是的,必须现在。/ 不是,不用。
变为一般疑问句时只需把_________提到句首。结构为_________+ 主语 + be + 及物动词的过去分词(+ 其他)?
肯定回答:Yes,主语 + 情态动词.
否定回答:No,主语 + ______________.
Practice
Ⅰ. 选择最佳答案。
( ) Young trees should ________ every year.
A. be planted B. planted C. plant
A
Ⅱ. 按要求完成下列各句,每空一词(含缩写)。
1. We must do the work right now. (改为被动语态)
____ ____ ____ __ ____ right now.
The work must be done
2. Teenagers should be allowed to go out with their friends on school nights. (改为否定句)
Teenagers _________ __ _______ to go out with their friends on school nights.
shouldn’t be allowed