(共16张PPT)
Unit 7 Teenagers should be allowed to choose their own clothes
Grammar Focus-4c
一、教学目标
1.能掌握本课时出现的新词汇，复习与巩固一般现在时及一般
过去时的被动语态。
2.能够掌握“情态动词的被动语态”的用法和形式，以及如何把主
动语态变成被动语态。
3.通过4a和4b练习，进一步巩固知识。
二、教学重点及难点
1.能掌握本课时出现的新词汇，复习与巩固一般现在时及一般
过去时的被动语态。
2.能够掌握“情态动词的被动语态”的用法和形式，以及如何把主
动语态变成被动语态。
Let’s enjoy the song,then finish the lyric.
1.There’s nothing you can do
that __________.
can’t be done
2.Nothing you can sing
that ___________.
can’t be sung
There’s nothing you can do that can’t be done.
Nothing you can sing that can’t be sung.
含有情态动词的被动语态
Grammar Focus
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.
我同意。他们还不够严谨。I agree. They aren’t _______ _______.
2. 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
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.
should be allowed
serious enough
should be encouraged
too young to
找出哪些含有情态动词的被动？
3. 不应该允许青少年去做兼职。
Teenagers ______ ______ _______ _______ to have part-time jobs.
我不同意。他们可以从工作当中学到很多。
I disagree. They can _______ a lot _______ working.
4. 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.
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.
should not be allowed
learn from
may be allowed
找出哪些含有情态动词的被动？
语法探究
观察 思考 回答
填空：
方框里情态动词有_______ ______,情态动词后是_________结构，即be + _________。
should may
过去分词
被动语态
一、被动语态的结构(含有情态动词)
1.肯定：
主＋情态动词（should/may/can/could...+be +过去分词+ 其他.
2.否定：
主＋情态动词 + not + be + done + 其他.
3.一般疑问：
情态动词+主+be + done +其他？肯定回答:Yes, 主 + 情态动词.
否定回答：No, 主 + 情态动词n’t.
二、一般现在时的被动语态
肯定句：主语+be(is/am/are)+过去分词+(by……).
否定句：主语+be(is/am/are)+not+过去分词+(by……).
一般疑问句：Be(is/am/are)+主语+过去分词+(by……)？
特殊疑问句：特殊疑问词+一般疑问句？
如：这辆汽车是中国制造的。The car ________ in China.
这辆车不是中国制造的。The car ________ in China.
这辆车是中国制造的吗？ _____ the car _____ in China
这辆车什么时候在中国被制造的？When _____ the car _____ in China
is made
isn’t made
is made
Is made
三、一般过去时的被动语态
肯定句：主语+be(was/were)+过去分词+(by……).
否定句：主语+be(was/were)+not+过去分词+(by……).
一般疑问句：Be(was/were)+主语+过去分词+(by……)？
特殊疑问句：特殊疑问词+一般疑问句？
如：这房子是1967年建的。The house ________ in 1967.
这房子不是1967年建的。The house ___________ in 1967.
房子是1967年建的吗？ ______ the house ______ in 1967
这房子是什么时候建的？When ______ the house ______？
was built
wasn't built
Was built
was built
Ⅰ.用括号中所给单词的适当形式填空
1.Apples, cabbages and onions should (grow) widely in the area.
2.Must the work (finish) by 4:00 this afternoon
3.There is something wrong with the machine. It should
(fix) at once.
4.Thanks to the Internet, different kinds of information can
(learn) in a short time.
5.I think our ideas should (exchange) as soon as possible.
6.Five different kinds of food must (mix) to make the soup.
7.The stars can’t (see) in the daytime.
8.Can this kind of bike (buy) in that shop
9.The fruit should (keep) well during winter.
10.Should I (allow) to make my own decisions
be grown
be finished
be fixed
be learned/learnt
be exchanged
be mixed
be seen
be bought
be kept
be allowed
地区
机器
fix = repire修理
信息
交换
尽可能快
混合
做自己的决定
1. 判断是否被动(主语和动词关系);
2. 划出情态动词;
3. 情态动词+be+done
Rewrite the sentences according to the example.
You must clean your bedroom every day.
Your bedroom __________________________________________.
I will do the housework in the afternoon.
The housework will _______________________________________.
3. Parents will encourage their children to do social work for their community.
Children ________________________________________________.
4. Do you think we must keep teenagers away from the Internet
Do you think teenagers ____________________________________
5. Parents should give teenagers chances to make their own decisions.
Teenagers ________________________________________________.
4a
must be cleaned every day
will be encouraged to do social work for their community by their parents.
be done in the afternoon
Practice
must be kept away from the Internet
should be given chances to make their own decisions
encourage sb. to do 鼓励某人做某事
社会的
社区
keep sb./ sth. away from...
使某人/某物远离…
机会
make one’s own decisions
自己做决定
保持 keep-kept-kept
给 give-gave-given
1. 判断是否被动(主语和动词关系); 2. 划出情态动词;
3. 情态动词+be+done
Should teenagers _______ (ask) to move out when they start working In many Western countries, teenagers _________ (allow)
to move out at eighteen. Their parents believe that they should ________ (educate)to take care of themselves from a young age.
This way, when they ______ (start) working they can manage their
own lives. However, in most Asian societies, it is not common for teenagers to _____ (move) out. Chinese parents believe that it is
better for children to live with parents who can ________(take) careof them. But the young should then look after their parents as they get older. That is why many Chinese adults _________ (continue) to live with their parents.
4b Complete the sentences with the phrases in the box.
be asked
are allowed
be educated
start
move
take
continue
encourage sb to do sth 鼓励某人做某事
keep away from 远离
make one’s own decisions 自己做决定
move out 搬出去
take care of /look after 照顾
manage one’s own life 应付自己的生活
continue to do sth/continue doing sth 继续做某事
动词变形：什么时态？主动？被动？
Pairwork
英英字典
Members in English club should (not) be allowed to ....
give an English speech
act out English plays
sing English songs
watch English movies
read English newspapers
read Chinese books
use the Chinese dictionary
Thank you for listening!
