(共30张PPT)
Unit 8 Save Our World
Grammar
Building Your Vocabulary
Fill in the blanks with the words from this unit. The first letter is given.
Ⅰ
1. A: What does r________ mean
B: It means “garbage”.
2. Please talk slowly. I cannot f________ you.
3. Smoke and gas p________ the air.
4. We should value time, not w________ it.
5. Many students in environment clubs try to make less p________.
ubbish
ollow
ollute
aste
ollution
Fill in the blanks with the correct forms of the phrases in the box.
Ⅱ
throw away turn… off pick up neither… nor… more than
1. We should ________ the garbage in the schoolyard and put it into the garbage bin.
2. The garbage bag is full. How much did you _________ after lunch
3. ________ 70 percent of the earth is covered by water.
4. Don’t leave the lights on. Please ________ them ________.
5. ________ Hebei Province ________ Jilin Province is in the south of China.
pick up
throw away
More than
turn off
Neither nor
Grammar in Use
Rewrite the sentences using “it”.
Example:
We went to Beijing. We left at 8 o’clock and arrived at 12 o’clock.
→It took us four hours to travel to Beijing.
1. We should finish the project in an hour. It is hard.
2. We will go to the schoolyard to play. It will be fun.
It is hard for us to finish the project in an hour.
It will be fun for us to go to the schoolyard to play.
Rewrite the sentences using “it”.
3. People often waste paper. It is not right.
4. We should protect the environment. It is our duty.
It is not right for people to waste paper often.
It is our duty to protect the environment.
【探究】
it的用法：
1. 用作人称代词，代替前面提到过的事物。
eg: This is a new dictionary. I bought it yesterday.
2. 代替指示代词，相当于this或that。
eg: -What’s that
-It’s an eraser.
My brother has lost his watch. Now he is looking for _____.( )
A. one B. this
C. that D. it
D
it的用法：
3. 表示某人（who, someone, somebody等）的身份，还可指代不明性别的人或婴儿(baby)等。
eg: -Go and see who is knocking at the door.
-It’s Bill.
The baby smiled when it saw its mother.
it的用法：
4. 指时间、距离、自然现象（天气、气候、明暗）、度量、价值等。
eg: It’s Sunday today.
It’s three months since he came here.
How far is it to the Great Wall
It’s getting dark.
-What’s your QQ number
-_____ is 355994127.( )
A. I B. He
C. It D. She
C
it的用法：
5. 作形式主语：英语中不定式、动名词、主语从句等复杂成分在作主语时主语往往显得很长，使整个句子看上去头重脚轻，这时就借助“it”来作形式上的主语，而把真正的主语移到句子后边去，使全句看上去平衡一些。 此时“it”没有实际的意义。
eg: It is necessary to ask the teacher for help.
It hasn’t been decided whether to hold a meeting this week.
it的用法：
it作形式主语常用于下列句型中：
a. It is+adj.+(for sb.) to do sth.（对某人来说）做某事……
eg: It’s important for us to protect the environment.
b. It’s time to do/for/that… 到……时间了。
eg: It’s time to get up.
c. It’s one’s turn to do sth. 轮到某人做某事了。
eg: It’s your turn to answer the question.
d. It’s+adj.+n.+to do sth. 做某事是……的。
eg: It’s bad manners to speak to the old loudly.
_____ is really hard _____ them to climb such a high mountain.( )
A. This; to B. It; to
C. This; for D. It; for
D
it的用法：
6. 作形式宾语：当不定式、动名词、从句等复杂成分作宾语且后面跟有宾语补足语时，通常会在宾语补足语前使用it作形式宾语，而将真正的宾语移至句末。 it作形式宾语时，常用在动词think, make, find, feel等词之后，其基本结构为“动词＋it＋宾语补足语＋不定式（动名词或从句）”。
eg: We thought it no use doing that.
I find it difficult to solve the problem.
Chinese people find _____ our duty to help develop African countries along the Belt and Road (一带一路).( )
A. it B. this
C. that D. these
A
Choose the correct answer.
1. -Maria, how do you like Journey to the west, one of the four classic novels of Chinese literature
-Wonderful! I like _____ very much.( )
A. one B. them C. it D. its
2. Mike lost his school ID card this morning. He is looking for _____ now.( )
A. it B. him C. them D. that
C
A
Choose the correct answer.
3. The twins are so alike that even their father finds _____ hard to tell them from each other.( )
A. it B. him C. them D. that
4. -Do you like English
-Yes, but I think _____ is a great challenge to learn the language well.( )
A. that B. this C. it D. they
A
C
Choose the correct answer.
5. -_____ nearly took us an hour to walk here.
-Have a drink, then. You _____ be thirsty.( )
A. This; may B. It; may
C. This; must D. It; must
6. Is _____ necessary to take off our shoes when we enter the lab ( )
A. everyone B. this C. her D. it
D
D
Fill in the blanks.
1. 我花了一个小时写这封信。
_______ took me an hour _______ _______ the letter.
2. 对我来说学习是很有趣的。
_______ is fun for me _______ _______.
3. 我认为你最好待在这里。
I think _______ best _______ you stay here.
It to write
It to study
it that
Fill in the blanks.
4. 对我们来说学好英语很重要。
_______ is very important for us _______ _______ _______ _______.
5. 画画花费许多时间,我不喜欢。
Drawing takes much time and I don’t like _______.
It to learn English
well
it
Listening and Speaking
Listen to the passage and tick the correct answer.
Ⅰ
1. Where were Li Ming, Wang Mei and Li Lin
They were by the river. They were at the school.
2. Who collected the most garbage
Li Ming. Wang Mei.
3. What did they find in the garbage
A toy bike. A toy truck.
Complete the following dialogue.
Ⅱ
Jenny is sorting the garbage. She needs some help.
Jenny: Hi Danny! Come here.
Danny: I’m coming. What's the matter
Jenny: ________________
Danny: Of course. ________________
Jenny: I want you to help me sort the garbage.
Danny: No problem.
Can you help me
What’s wrong
Complete the following dialogue.
Ⅱ
Jenny: I’ll put these plastic bottles in this bag. And you put the waste paper in that bag.
Danny: OK.
Jenny: That’s done. __________________________________________
Danny: With pleasure.
Could/ Can you help me take the garbage out
Putting It All Together
Read the passage and answer the questions.
Ⅰ
1. What does Danny use the cardboard for
2. What does Danny use the lids of the ice cream pails for
3. What does Danny use for the headlights of the car
He uses the cardboard for the car’s body.
He uses the lids of the ice cream pails for the car’s wheels.
He uses old metal cans for the headlights of the car.
My City’s Future!
Ⅱ
Does your city have pollution problems If it does, think about ways to reduce pollution. Make a plan about how to save your city. If it doesn’t, think about how to make your city more beautiful. Write a letter to the government describing your plan.
GOOD JOB
