内容正文:
Unit 2 Loving Our Planet
Topic 3 What can we do to protect the environment Section D
仁爱科普 九上
Compound Sentence
Recycling can protect the environment, _______ it can save money, too.
Some things we have done are good for the earth _________ some are bad.
We should do everything to protect it, ________ we’ll be punished and lose our home.
…people produce power from coal, _______ it is very dirty and causes acid rain .
and
while
or
but
Presentation
Compound Sentence
but
so
or
while
for
and
as well as
neither…nor…
not only…
but also…
both…and…
either…or
1、表示顺承、并列、递进关系的并列连词
and和,both...and...……和……都,as well as也,not only...but also...不但……而且……,neither...nor...既不……也不……等。
My father bought me a present, and I like it very much.
He can speak not only English but also French.
特别提醒:
and连接的两个并列成分的肯定句变为否定句时,and要变成or。
I can’t sing or dance.
2、表示转折和对比关系的并列连词
but但是,yet然而,while而
Lucy likes red while Lily likes white.
The doctors tried to save the patient, but they failed.
= Although the doctors tried to save the patient, they failed.
尽管医生们尽力抢救那个病人,但是失败了。
3、表示选择关系的并列连词
either...or...要么……要么……,or或者、否则
Study hard, or you’ll fail the exam.
Either you or he has made the mistake.
4、表示因果关系的并列连词
so所以、因此,for因为
Kate was ill, so she didn’t go to school.
It must have been wet last night, for the ground is wet.
1. Study hard, you will pass the exam.(2019 安顺)
A. so B. or C. but D. and
2. Think of a number, don't tell me what it is.(2019 沈阳)
A. nor B. so C. or D. but
3. Don’t run in the classroom, you may hurt yourself.(2019 陕西)
A. and B. or C. but D. so
4. Practice more, ________ you'll do better in playing chess.(2019 重庆)
A. but B. and C. when D. after
D
D
B
B
D
Let’s do
5. Be quick, we’ll be late for school.(2019 呼和浩特)
A.and B.but C.or D.so
6. At school, we are taught knowledge how to behave well. (2019 青岛)
A. neither; nor B. either; or C. not only; but also D. not; but
7.I have only two tickets for TF Boys’ concert. you he can go on
with me.(2019 广东)
A.Either… or B.Neither… nor C.Both… and D.Not only… also
8. Going to the movies is good, I really only like listening to music.(2019 安徽)
A. and B. but C. so D. or
C
C
A
B
Let’s do
Functions
Would you like to be a __________ person?
First, you ought to _________ the electricity when you leave a room.
__________ said than done.
Action speak _________ than words.
The train can _________ a top speed of 431 km per hour.
greener
shut off
Easier
louder
reach
Read the passage on Page 49, then find the topic sentence of each paragraph.
1 _______________________________
2 _______________________________
_______________________________
3 _______________________________
Forests are the lungs of the earth.
These young men and women face many difficulties when they plant new trees.
Tree planters are changing the world.
Scanning
1. Forests can _______________ , so they are the lungs of the earth.
A. help us breathe
B. stop the wind from blowing the earth away
C. remove CO2 from the air and to make oxygen
D. provide wood for many countries
2. Tree planters plant different kinds of trees because ___________ .
A. they would like beautiful forests
B. they want to change the world
C. they love their work
D. animals and birds can live in the forests
√
√
Read the passage and answer the question.
Reading task
3. What difficulties do tree planters face when they work?
A. Few insects may bite them.
B. It can be safe for them to work in the mountains
C. The bags of small trees are so heavy that they can’t carry them.
D. The weather may be very terrible.
4. What will happen if we do not plant new forests?
A. New Zealand, Canada and Brazil will have no wood to build houses
B. The forests will become less and less. We can’t breathe without them.
C. Volunteers around the world are free in their holidays.
D. The planters have no chance to work in the mountains.
5. The main purpose of this passage is ________________________ .
A. to advise young volunteers to plant more trees
B. to tell us to protect the forests
C. to introduce how difficult the tree planting
D. to teach young men and women to plant trees
√
√
√
bite sb on the +身体部位
There are many insects that ___ them___ their legs while they work.
even though = even if, 即使,尽管,虽然
_____________tree planting is very difficult, they love their work.
so that =in order that,为的是,目的是
They plant different types of trees ________birds and animals can live in the forests.
bite on
Even though
so that
Language points
1.How do you understand “Forests are the lungs of the earth”?
Forests can remove carbon dioxide from the air and make oxygen.
Reading task
2. What difficulties do tree planters face when they plant trees ?
(1)The weather may be very hot and dry or it may be very cold and wet.
(2)There are often many insects that bite these planters on their legs, arms, and faces while they work.
(3)They carry heavy bags of small trees, and working in the mountains can be dangerous.
adj.干燥的,雨少的,干性的
v. 使……干,弄干,擦干
Reading task
3.Why do they plant different kinds of trees ?
They plant different types of trees so that birds and animals can live in the forests.
4.What will happen if we do not plant new forests ?
If we don’t plant new trees, the forests will become smaller and smaller. Without trees, the wind and the water will take the earth away, and the oxygen in the air will become less and less.
5.Would you like to be a tree planter when you are older ? Why or why not ?
…
Reading task
1. Do you recycle newspapers or cans?
A. Often. (2) B. Seldom.(1) C. Never.(0)
2. What do you usually take?
A. A bath.(0) B. A shower.(2)
3. When you have a short journey, how do you usually go there?
A. Walk or ride a bike.(3) B. Go by car.(0) C. Go by bus.(2)
4. What do you usually do when you see others littering?
A. Stop them.(2) B. Pick the litter up.(1) C. Do nothing.(0)
5. How often do you use paper towels?
A. Often. (0) B.Seldom.(1) C. Never.(2)
6. How often do you eat fast food?
A. Often.(0) B. Seldom.(1) C. Never.(2)
7. What type of bags do you use for shopping?
A. Baskets or cloth bags.(3) B. Reused plastic bags.(1)
C. New plastic bags.(0)
8. How often do you turn off the lights when you leave a room?
A. Nearly always.(2) B. Seldom. (1) C. Never.(0)
Finding a Greenest Person?
Project
0-4 You have not started turning green yet.
5-9 You are pale green.
10-13 You are medium green. Try harder.
14-15 You are bright green, but do not stop trying.
Scores
__________(Your partner’s name),
Your scores are ____. You often _______ and you usually ________, (but you seldom / never ___________, ) so you have not started turning green yet./…
Conj. 连词
Project
Finding a Greenest Person?
How to become a greener person
Would you like to be a greener person? Here is some advice for you. First, you should/had better/… ____________ . Second, ____________________. Third, ______________ . Finally, ______________ .
The earth is our home. Everyone should try his best to protect it.
Free talk
Memorize the useful expressions and key sentences that we learnt today.
Finish Section D in the workbook.
Finish the composition and hand it in.
Homework
20
$