資源簡介

(共25張PPT)
Unit 5 What are the shirts made of？
SectionB （Grammar Focus-4c）
第三課時
知識目標：
1)掌握本課時重點單詞、短語：allow, be allowed to do sth.; allow doing sth. and so on...
2)掌握本課時語法：一般現在時的被動語態。
能力目標：
提升學生的語法運用能力。
學習目標
1. 你的襯衫是棉的嗎？
____ your shirts _____ ____ cotton
2. 是的, 而且它們產于美國。
Yes, they are. And they were _____ ___ the US.
3. 飛機模型是由什么制成？
______ the model plane ______ of
made in
Are made of
What’s made
Grammar Focus
4. 它是由舊木頭和玻璃制成。
It’s made of ____ _____ and ______.
5. 茶產自中國哪里？
______ ___ tea _________ in China
6. 茶產自很多不同的地區。
It’s produced in many ________ _____.
7. 茶是如何制成的？
_____ is tea __________
Where is produced
different areas
used wood glass
How produced
8. 茶樹種植在山坡上。當茶葉長成后, 它們被手工采摘下來，然后送去加工。
Tea plants ____ ______ on the sides of the mountains. When the leaves are ready, they ____ ______ by hand and then ___ ____ for processing.
are grown
are picked
are sent
在杭州人們種植茶葉。
Active Voice： People _____ ____ in Hangzhou.
Passive Voice ：Tea ___ ______ (by people) in Hangzhou.
grow tea
is grown
★ (一)被動語態的含義
英語動詞有兩種語態:
(1)主動語態(The Active Voice)：表示主語是動作的執行者；
e.g. Many people speak English.許多人講英語。
謂語speak 這一動詞是由主語many people來執行的。
(2)被動語態(The Passive Voice)：表示主語是動作的承受者。
e.g. English is spoken by many people.英語被許多人講。
主語English是speak這一動作的承受者。
★(二)被動語態的構成
被動語態由“助動詞 be+及物動詞的過去分詞”構成。助動詞be有人稱、時態和數的變化。
注意：當說話者不知道動作的執行者或沒有必要指出動作的執行者時，只需要強調動作的承受者，可以使用被動語態。如果需要在被動語態中指出動作的執行者時可用介詞 by引出。
e.g. Chinese is spoken by the largest number of people in the world.
譯：
漢語是世界上使用人數最多的（語言）。
★(三)一般現在時的被動語態
(1)一般現在時被動語態的構成：am/is are+及物動詞的過去分詞
e.g. ①This knife wood and metal. 這把刀是用木頭和金屬制造的。
e.g.②These bananas Hainan.
這些香蕉產于海南。
e.g. ③I my uncle.
我由我的叔叔照顧。
is made of
are produced in
am taken care of by
(2)一般現在時的被動語態的句式結構
①肯定句：主語+am/is/are +及物動詞過去分詞 (+by...).
e.g. The kite Mary.
這個風箏是瑪麗做的。
is made by
②否定句：主語 +am/is/are + not +及物動詞過去分詞(+by...).
e.g. The kite Mary.
這個風箏不是瑪麗做的。
isn’t made by
③一般疑問句：Am/Is/Are+主語+及物動詞過去分詞
( +by...)
肯定回答：Yes,主語+am/is/are.
否定回答：No,主語+isn't/aren't或No, I'm not.
e.g.-這個風箏是瑪麗做的嗎
(譯)
-是的，它是。 -不，它不是。
Is the kite made by Mary
Yes, it is.
No, it isn't.
★(四)主動語態和被動語態的轉化
主動語態轉化為被動語態的步驟如下:
(1)確定主動句的主語、謂語和賓語。
(2)把主動句里的賓語變為被動句里的主語,若主動句里的 賓語是人稱代詞,要將賓格變為主格。
(3)把謂語變成被動結構“be+動詞的過去分詞”但時態不 能改變。
(4)把主動語態中的主語放在介詞 by 后作賓語,若主語是人 稱代詞，應把主格變為賓格。
主動句： 主語 + 謂語 + 賓語
被動語態： 主語+be +及物動詞過去分詞+ by +賓語
e.g. I clean my room.
主語 謂語 賓語
My room is cleaned by me.
【注意】
如果主動句中有兩個賓語(直接賓語和間接賓語),可以把其中任意一個變成被動句的主語。
e.g. 我的老師給我許多書。
My teacher gives me a lot of books. (主動語態)
主語 謂語 間賓 直賓
被動語態: a lot of books by my teacher.
被動語態: A lot of books by my teacher.
I am given
are given to me
4a
Complete the sentences with the correct forms of the verbs in brackets.
1. Children under 18 _____________ (not allow) to watch this show without their parents.
aren’t allowed
2. We ________ (pay) by the boss on the last Friday of each month.
3. A: What language ___________ (speak) in Germany
B: Most people speak German, but many can speak English, too.
are paid
is spoken
4. Most of the earth’s surface ___________ (cover) by water.
5. The classroom _________ (clean) by the students every day.
is covered
is cleaned
4b
Rewrite the sentences using the passive voice.
1. Farmers plant the tea on the sides of mountains.
_______________________________________________
The tea is planted on the sides of mountains by farmers.
2. This shop uses the best materials to make dresses.
_______________________________________________
The best materials are used by this shop to make dresses.
3. Careless driving causes many traffic accidents.
__________________________________________________
4. The postman brings letters and postcards to people’s home.
__________________________________________________
Many traffic accidents are caused by careless driving.
Letters and postcards are brought to people’s home by the postman.
5. Our family does not use this silver plate very often.
________________________________________________
This silver plate isn’t used very often by our family.
1.Children under 18 aren't allowed (not allow) to watch this show without their parents.
18歲以下的孩子沒有他們的父母(陪同)被允許看這個節目。
sb.be allowed to do sth. 某人被允許做某事。
為 allow sb. to do sth. (允許某人做某事)的被動形式。
其否定形式為 sb. be not allowed to do sth.,意為“某人不被允許做某事”。
e.g. People in public.
公共場所不允許吸煙。
are not allowed to smoke
[拓展] allow 的常用結構:
①allow sb. to do sth. 允許某人做某事
e.g. They choose courses they like.他們允許學生選擇自己喜歡的課程。
②allow doing sth. 允許做某事
e.g.We don’t allow in public places.
我們不允許在公共場所吸煙。
allow students to
smoking
★(四)主動語態和被動語態的轉化
主動語態轉化為被動語態的步驟如下:
(1)確定主動句的 、 和 。
(2)把主動句里的 變為被動句里的 ,若主動句里 的賓語是人稱代詞,要將賓格變為 。
(3)把謂語變成被動結構" "但時態不 能改變。
(4)把主動語態中的主語放在介詞 后作賓語,若主語是 人稱代詞，應把主格變為
主語
謂語
賓語
賓語
主語
主格
be+動詞的過去分詞
by
賓格
Summary
( )1. —Why did he get up so early to work
—In order to the heavy traffic in the city.
A. avoid B. stop C. cancel D. solve
( )2. Today Chinese by more and more people around the world.
A. use B. uses C. was used D. is used
( )3. The young trees every three days.
A. are watered . B. were watered
C. are watering D. have watered
( )4. Children to keep away from the medicine for their safety.
. . A. are told B. tell C. are telling D. was told
A
D
A
A
Exercises
1. It seems that many people all over the world drink Chinese tea.
似乎世界各地的許多人都喝中國茶。
(1) It seems+that從句. 看起來……；似乎……；好像……
e.g. they don't like the presents.
他們好像不喜歡這些禮物。
It seems that
【拓展】
① It seems like... 似乎/好像……like 后常接名詞。
e.g. years since we last met.
自從上次我們見面以來，似乎好多年了。
It seems like
language points
② seem(+to be)+adj. 似乎/好像……
e.g. It seems ( to be ) impolite to say so.
這樣說似乎不禮貌。
③ seem to do sth. 似乎/好像做某事
e.g. Your teacher seemed to know that.
=It seemed that .
你的老師好像知道那件事了。
your teacher had known that
② seem(+to be)+adj. 似乎/好像……
e.g. It seems ( to be ) impolite to say so.
這樣說似乎不禮貌。
③ seem to do sth. 似乎/好像做某事
e.g. Your teacher seemed to know that.
=It seemed that .
你的老師好像知道那件事了。
your teacher had known that
1.How does the writer start with the passage？
2.According to the passage, do you think those things that you buy are made in those countries
3.How old is Kang Jian and where is he from
4.What did Kang Jian do last year
5.What did Kang Jian find interesting
6. Where are the most products of American brands made in
7.Is it easy to buy a pair of shoes made in America
8.What do you think of Chinese prouducts for America
9.What does the writer hope about China in the future
10. What's the topic of the passage

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