(共23张PPT)
Unit 2
I’ll help to clean up
the city parks.
Lead-in
1. 我想去帮助无家可归的人。
I’d __________ homeless people.
2. 你可以请求医院允许你探访儿童, 逗他们开心。
You could ____ hospitals _____ you
visit the kids and cheer them up.
ask to let
like to help
Fill in the blanks according to the text.
3. 她自愿一周去一次那里帮助孩子们
学习读书。
She __________ there once a week _______ kids learn to read.
volunteers
4. 她决定参加一个课外阅读项目的志愿者选拔。
She decided to __________ a volunteer after-school reading program.
to help
try out for
5. 马里奥相信这会帮助他获得他的梦想工作。
Mario believes it can help him _______ his future dream job.
6. 我正在制作一些告示，并将它们张贴于学校里。
I’m making some signs __________ around the school.
to get
to put up
Grammar Focus
I’d like to help homeless people. She decided to try out for a volunteer after-school reading program.
You could ask hospitals to let you visit the kids and cheer them up. Mario believes it can help him to get his future dream job.
She volunteers there once a week to help kids learn to read. I’m making some signs to put up around the school.
动词不定式结构
动词不定式
“to+动词原形”被称为动词不定式，常写作to do(有时to可以省略)，否定形式为not to do。
该形式又被称为动词的非谓语形式，在句中除了不能作谓语外，可作其他成分，没有人称和数的变化。
观察下列不定式在句中的作用。
1. To see is to believe.
主语，表语
2. Tom wants to see an elephant.
宾语
3. My father got up early to watch the
final basketball game on TV.
目的状语
4. He was too excited to say a word.
结果状语
5. The sad movie made us cry.
宾语补主语
6. It is important for us to keep heathy.
真正的主语
1. 做动词宾语。常见动词有would like, want, help, learn, hope, decide, volunteer。
动词不定式用法小结
e.g. We don’t _____________ too much
time.
我们不想花费太多时间。
want to spend
2. 作宾语补足语。常见动词有ask,
want, tell, invite, like, hate。
e.g. Mr. Wu ________________________
the text.
吴老师让学生们抄写课文。
asked the students to copy
3. 作目的状语。
e.g. Jack turned his head around to look at people.
杰克转过头看向人群。
e.g. Claire missed a great chance to make his dream come true.
克莱尔错过了实现梦想的机会。
4. 作后置定语。
5. 动词help及一些役使动词后面常省略to。
e.g. My mother wouldn’t _______________
_____________.
妈妈不会让我去看电影的。
let me go to
the movie
6. It作形式主语，真正的主语为后面的不定式。
e.g. 保护地球对我们来说很重要。
It is important for us to protect the earth.
4a
Fill in the blanks with the phrasal verbs in the box.
put up, hand out, call up, cheer up,
come up with, give out, put off
1. I want to _______ my plan to work in an animal hospital until next summer. I’m too busy with my studies this year.
put off
2. She hopes to ______ at least five primary schools to ask if they need volunteers for their after-school programs.
call up
put up, hand out, call up, cheer up,
come up with, give out, put off
3. Our class is trying to ____________ some ideas to ________ sick children because they are often sad.
come up with
cheer up
4. We decided to ________ signs around the school and ________ notices to tell students about the book sale. We will _________ the money from the sale to homeless people.
put up
hand out
give out
put up, hand out, call up, cheer up,
come up with, give out, put off
help move do make visit spend
Fill in the blanks with the correct forms of the verbs in the box.
Most people today are only worried about getting good jobs _________ lots of money. In their free time, they think about what _______ for fun. However, few people think about what they can do _________ others.
4b
to do
to help
to make
不定式作后置定语
复合不定式作宾语
目的状语
There are many people who are less lucky than us. Volunteering our time to help these people is a good way _________ our free time. For example, we can make plans __________ sick children in the hospital or raise money for homeless people. Some people even stop doing their jobs for a few months to a year ________ to another place, like one of the countries in Africa, and help people there.
help move do make visit spend
to visit
to move
to spend
定语
宾语补足语
目的状语
1. I’d like to volunteer _________________
___________________________________
2. At 12: 00 a.m., I called my friend __________________________________
Complete the sentences with your own ideas. Use infinitives.
to help kids with
their homework.
to play soccer together in the afternoon.
4c
3. I’m very busy but I could help ____
______________________________
4. Summer vacation is coming, and I
want __________________________
5. I want to travel alone. My parents
told me (not) ___________________
take
the litter out after dinner.
to do that.
to go camping with my friends.
Summarize
不定式结构
I’d like to (do)…
ask sb. to (do)…
let sb. do…
volunteer…to help sb. (do)…
learn to do…
decide to do…
help sb. to do…
make … to (do)
想要做……
叫某人做……
让某人做……
志愿帮助某人做……
学习做……
决定做……
帮助某人做……
让某人做……
1. I want _________ (become) a teacher one day.
2. It’s very useful _______ (learn) foreign language.
3. He showed me how ______ (use) a computer.
4. She got a job ______ (take) care of an old man.
5. You should run quickly _______ (catch) the bus.
根据提示完成下列句子。
to become
to learn
to use
to take
to catch
Recite the Grammar Focus.
