人教版九年级英语第七单元第二课时 Section A 2d grammar 4a 4b

As a teenager, you have a lot of rules at school. Can you write down some of them?

Students should be allowed to speak English loudly. Students shouldn’t be allowed to sleep in class. Students shouldn’t be allowed to make noises. Students shouldn’t be allowed to throw the rubbish in the classroom. Students shouldn’t be allowed to get to class late.

allow sb. to do sth. 允许某人做某事 be allowed to do sth. 被允许做某事 should be allowed to do sth. 应该被允许做某事

1. be allowed to do2. the shopping center

被允许去做购物中心

3. driver’s license4. sixteen-year-olds 6. part-time jobs 8. their own clothes 9. serious enough

驾驶执照16岁的孩子 兼职工作 他们自己的衣服 足够严肃

5. be worried about your safety担心你们的安全7. get their ears pierced 穿他们的耳朵

Read the conversation and answer the questions. 1. Where do they go for school trip?

They go to art museum for school trip.2. Does Mr. Smith allowed students to take photos?

No, he doesn’t. He says they must not take photos. It’s not allowed in the museum.

1. Teenagers should be allowed to choose their own clothes. 2. Teenagers should not be allowed to smoke. 3. It is not allowed in the museum. 4. Do you think we may be allowed to take photos if we don’t use a flash?

“sb. + should / should not + be allowed to do ...” 1. 我认为应该允许16岁的孩子开车。 I think sixteen-year-olds should be allowed to drive. 2. 我不同意，我认为16岁这个年纪太年轻了。 I disagree. I think sixteen is too young. 3. 你认为应该允许13岁的孩子们做兼职工作吗？ Do you think thirteen-year-olds should be allowed to take part-time jobs? 4. 安娜可以选择自己的衣服。 Anna is allowed to choose her own clothes. 5. 那个年龄的他们不够稳重。 They are not serious enough at that age.

同义句转换 1. They should allow us to have part-time jobs. We should be allowed to have part-time jobs. __________________________________. 2. We should allow children to spend time with their friends. Children should be allowed to spend time with their ____________________________________________ friends. ________________________. 3. The teacher should allow Anna to finish the picture.

Anna should be allowed to finish the picture.

1. sixteen-year-olds 十六岁的青少年 它相当于一个名词, 等于sixteen – year- old kids. “一个16岁青少年的表达方式” a kid of sixteen/a kid of sixteen years old /a sixteen-year-old kid

(2) seem+名词 e.g. That seems a good idea. 那好像是个好主意。 (3) It seems + that 从句 e.g. It seemed that nobody knew anything about the matter. 看来没有人知道这件事。

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 ______ be __ _______ should allowedto drive.

2. 我同意。他们还不够严谨。 I agree. They aren’t se

rious enough.should be encouraged

5. 不应该允许青少年去做兼职。 should not Teenagers ______ ___ be __ allowed _______ to have part-time jobs. 6. 不，我不同意。他们可以从工作当中学到很多。 learn a lot _______ from working. I disagree. They can ______

◆ 温故 ◆ 在英语中，动词有两种语态，即主动语 态和被动语态。主动语态表示主语是动作的 执行者，被动语态表示主语是动作的承受者。 在前面两个单元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。

◆ 知新 ◆ 本单元我们主要了解含有情态动词的 被动语态。它的结构是什么呢？观察下面 例句中含情态动词被动语态的各种形式 ，然后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。 2. You can take this book home. (改为被 动语态) →This book can be taken home (by you). 3. This problem can’t be worked out very easily. 这道题轻易算不出来。 4. Must the work be done at once? 这项工作必须立即完成吗？

【结论】 A. 含有情态动词的被动语态的结构为：情 态动词+___+ be 及物动词的________ 过去分词。 B. 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_____ 宾语 变成被动语 态的主语。 C. 变为否定句时只需要在情态动词后加 _____ not 。 D. 变为一般疑问句时只需把________ 情态动词提到 句首。

【运用】 Ⅰ. 选择最佳答案。 ( A ) Young trees should ________ every year. A. be planted B. planted C. plant

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) The work must ____ ____ ____be __done ____ right now. 2. Teenagers should be allowed to go out with their friends on school nights. (改为否定句) Teenagers _________ __allowed _______ to go out with their friends on shouldn’t be school nights. 3. A book should be read each month. (改为一般疑问句)

______ __ ____ __ ____ each month?