(共26张PPT)
Grammar Focus-4c
Unit7
Teenagers should be allowed to choose their own clothes
Review
__________________ 陪伴在某人身旁
__________________ 跑过田野
__________________ 确保
__________________ 给某人一个拥抱
__________________ 把某人扶 / 抬 / 举起来
__________________ (和某人)回嘴 / 顶嘴
__________________ 看恐怖电影
stay by one’s side
run through the field
make sure
give sb. a hug
lift sb. up
talk back (to sb.)
watch scary movies
_____________________ 10点以前回来
_____________________ 回想那些时光
_____________________ 做噩梦
_____________________ 后悔做过某事
be back by ten
think back to those times
have scary dreams
regret doing sth.
Review
主动语态:表示主语和谓语之间是_________关系
被动语态:表示主语和谓语之间是_________关系
英语的语态是通过动词形式的变化表现出来的。
英语中有两种语态:主动语态和被动语态。
We clean the classroom every day.
The classroom is cleaned by us everyday.
主动
被动
被动语态的谓语动词结构为:
be + 动词的过去分词
be 有时态、人称和数的变化
母亲节每年都被我们庆祝。
母亲节去年都被我们庆祝。
Review
我们已经学过:一般现在时的被动语态
一般过去时的被动语态
Mother's Day is celebrated by us every year.
Mother's Day was celebrated by us last year.
一般现在时的被动语态
am/is/are + 动词过去分词
一般过去时的被动语态
was/were + 动词过去分词
I don’t think sixteen-year-olds should be allowed to drive. I agree. They aren’t serious
enough.
Do you think teenagers should be encouraged to make their own decisions
Teenagers should not be allowed to have part-time jobs.
No, I don’t agree with this. Teenagers are too young to make their own decisions.
I disagree. They can learn a lot from working.
If you don’t use a flash, then it may be OK.
Do you think we may be allowed to take photos if we don’t use a flash
Can you find the passive voice from this form
What else can you find
含有情态动词的被动语态
情态动词+ be + 动词过去分词
情态动词
can/could
may/might
will/would
shall/should
must/have(has)to
ought to/need
1.情态动词无时态、人称和数的变化;
2.情态动词后动词变回原形。
含情态动词
的被动语态
句子结构
先把下列句子分类,总结句型结构
Teenagers should be allowed to buy their own clothes.
Teenagers should be allowed to go out with friends.
Teenagers should not be allowed to get their ears pierced.
Teenagers should not be allowed to have part-time jobs.
Should we be allowed to eat in the class
Should we be allowed to run in the hallways
肯定句
否定句
一般疑问句
肯定句
否定句
一般疑问句
主语 + 情态动词 + be + done + 其他内容 .
主语 + 情态动词 + not + be + done + 其他内容.
情态动词 + 主语 + be + done + 其他内容
情态动词: should, can...
含情态动词
的被动语态
易错点
主语 + 情态动词 + not + be + done + 其他内容.
易错点一:
表达否定时,“not”接在情态动词后。
Paper and water wasted by people.
A. will be not B. will not be
C. should be not D. should not be
2. In 2050, 2G used in the world.
A. will be not B. will not be
C. should be not D. should not be
易错点二:
判断下列句子是否正确?正确(T)错误(F)
情态动词 + 主语 + be + done + 其他内容
疑问句中, 情态动词后紧跟主语。
Should classroom be cleaned by students
Must be my room cleaned by myself now
Should be food wasted by people
Can the homework be finished tomorrow
Can be moon seen at night
T
F
F
T
F
Ⅰ. 选择最佳答案。
1. Young trees should _______ every year.
A. be planted B. planted C. plant
A
2. In order to make our city more beautiful, more trees and flowers _____ every year.
A. will plant
B. should plant
C. should be planted
C
3. Thanks to the Internet, different kinds of information _____ in a short time.
A. can be learned B. has been learned
C. can learn D. has learned
4. —How often do I need to feed the dog
—It ______ food every day, or it will be hungry.
A. must give B. must be give
C. must be given D. must be gave
A
C
5. —I want to borrow the book, but I don’t
know how long it may _______.
—For two weeks.
A. keep B. be borrowed
C. borrow D. be kept
6. The child without parents _______ good
care of by his teachers in this special school.
A. is taken B. are taken
C. take D. takes
D
A
Rewrite the sentences according to the
example.
1. You must clean your bedroom every day.
Your bedroom must be cleaned every day.
2. I will do the housework in the afternoon.
The housework _____________________
_______________.
4a
will be done in the
afternoon
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
__________________________________
will be encouraged to do social
must be kept away from the Internet
keep…away from 避免接近,远离
work for their community
n. 社区
5. Parents should give teenagers chances to
make their own decisions.
Teenagers
__________________________________
__________________________________.
should be given chances to make their own decisions
n. 机会,可能性
自己做决定
4b
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 be educated to take care of themselves from a young age.
Fill in the blanks with the correct forms of the words in brackets.
be asked
are allowed
v. 教育;教导
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) care of them.
start
v. 完成;应付
move
take
n. 社会
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.
continue
1. manage v. 完成(困难的事);
应付(困难局面)
manage to do sth. 设法做成某事
e.g. 我们设法及时赶到了机场。
We ________________ the airport
in time.
managed to get to
【链接】
try to do sth. 设法或试图做某事,但是否
做成了某事,它并不涉及。
e.g. You can try to improve your English by reading English newspapers.
根据句意,用manage或try的适当形式填空。
1) My brother worked hard and ________ to pass the exam. He was happy.
2) Tom ________ to pass the exam, but failed because of laziness.
managed
tried
1. do social work for their community
为他们的社区做社会福利工作
2. keep ... away from ... 使……远离……
3. give sb. a chance to do sth.
给某人一个机会做某事
4. make one’s own decision(s) 自己做决定
5. move out 搬出去
6. be educated to do sth. 被教育做某事
7. from a young age 从小
8. manage their own lives
成功应对他们自己的生活