(共18张PPT)
8下Unit 8 A green world
Integrated skills
Revision(主动变被动)
1.Water pollution often kills many fish.
Many fish are often killed by water pollution.
2.Air pollution harmed the man.
The man was harmed by air pollution.
3.We will improve the environment.
The environment will be improved by us.
How can you protect the environment
--- How green are you (你有多环保)
These are all good daily habits['h bits] about going green.
Do you have any other ways to go green
protecting the environment
Turn off the tap when brushing teeth
Take showers for less than 10 minutes
Use both sides of the paper
Recycle empty ['empti] bottles
Turn off the lights when leaving the room
Take our own bags to the supermarket
Do you often do the following things
1.What is the survey about
A.Students' daily lives B. Students’daily habits C.Students’ learning habits
2.When will the students carry out the survey
A.At 3.14 p.m. next Friday
B. At 3.40 p.m. this Wednesday
C. At 4 p.m. this Wednesday
3.How many boys will join in the survey
A. 20 B. 25 C.24
4.How many questions will they ask this time
A. 16 B.6 C. 26
5. From the dialogue we can infer(推断) that ______
A. Sandy hopes all the students can give clear answers.
B. 40 students are going to join in the survey.
C. The students will do a survey on the teachers’ daily habits.
进行,实施(do)
A survey(调查) on students’ daily habits
找出不同,进行精听
A survey on students’ daily habits
Time: Survey (1) ____________________
Daniel and Sandy meet:
(2) _______________________
Place: (3) __________________
Number of students: (4) _________
Boys: (5)__________
Girls: (6) _________
Number of questions: (7) __________
4 p.m. this Wednesday
3:40 p.m. this Wednesday
Room 201
50
25
25
6
The survey is going to carried out at 4 p.m. this Wednesday
We 'd better arrrive a little earlier, say, 3:40
Daily habits Number of students
Turn off the tap when brushing teeth
Take showers for less than 10 minutes
Use both sides of the paper
Recycle empty bottles
Turn off the lights when they leave a room
Take their own bags to the supermarket
35
20
40
15
41
9
Listening Skills:
Use the information in A1(50人)
Predict(预测) before listening
Listen for key words
The results of the survey
The number of the students is 60.
Daniel and Sandy met at 4:00 this Wednesday.
They met in Room301.
The students were asked 6 questions.
35 students would turn off the tap when brushing teeth.
35 students would recycle empty bottles.
Only 9 students would take bags to the supermarket.
25 students would take showers for less than 10 minutes.
Read A1 and A2 and do T/F
F
F
F
T
T
F
T
F
Sandy is writing a note to Mr. Wu about the survey she and Daniel have done. Help her complete the note. Use Parts A 1 and A 2 to help you.
Dear Mr. Wu
Daniel and I did a survey this ______________. Students were asked about their____________.
Here are the results of the survey. Only _________students usually take showers for less than 10 minutes, but __________students turn off the tap when brushing their teeth. Only 15 students recycle ______________, but __________students use both sides of the paper. It’s great that most students remember to ___________the lights, when they leave a room, but few students take their own __________to the supermarket.
The survey shows that students are doing a lot to help protect the environment, but there are still many more things they can do.
Sandy
daily habits
20
35
empty bottles
40
turn off
bags
Wednesday
Group work: Make a survey in your group. And choose one student to give us a report.
Daily habits Number of students
turn off the tap when brushing teeth
Take showers for less than 10 minutes
Use both sides of paper
Recycle empty bottles
Turn off the lights when we leave a room
Take our own bags to the supermarket
e.g. Here are the results of the survey. _________students usually take showers for less than 10 minutes. __________students turn off the tap when brushing their teeth. _________students recycle ______________. __________students use both sides of the paper. It’s great that most students________________. _____________________________________________________
Why do we use both sides of the paper
Why do we plant trees to protect the environment
Reason1 ● make our town ___1____
Reason2 ● ____2____ and help keep air clean;Air pollution is harmful to our health.
Reason3 ● keep soil in place ___3_____
Reason4 ● provide __4____ with home
1. A. cleaner B.nicer C. bigger
2. A.produce waste B. prevent dust C. reduce dust
3. A. after sandstorms
B. during storms
C. before rainstorms
4. A. animals B. humans C. birds
灰尘
固留土壤
be harmful to... = do harm to
Listen and choose
Read and complete the note
We can plant more trees. I think our town will look_____with more trees_______. _________ ___________ is harmful to our _________. Trees can reduce dust and help keep the air_______. Trees can also help keep soil in place during __________. They can also ________ __________ for animals.
nicer
around
Air
pollution
health
clean
storms
provide
home
Make up a new dialogue
A: Pollution has become a serious problem all around the world.
B: Yes, I agree. We should try our best to protect the environment.
A: What can we do
B: We can ...... I think ......
A: Good idea. ......
B: ......
protect the environment
save water
save paper
recycle things
save energy
reduce pollution
预习导航 词组答案
1.日常习惯 daily habits
2.学生的数量 the number of the students
3.回收空瓶子 recycle empty bottles
4.不让土壤流失 keeep soil in place
5.尽我们全力保护... try our best to protect...
6使用纸的两面 use both sides of the paper
7.当刷牙时 when brushing teeth
8.减少灰尘 reduce dust
9对我们的健康有害 be harmful to \
do harm to our health
10.关闭水龙头 turn off the tap
当堂反馈 一 根据中文意思或用所给动词的适当形式填空。
1. They are doing a survey _______________ (get) some information about students’ interests.
2. Remember to turn off the tap when ________________ (brush) ____________ (tooth).
3. Some students sometimes don’t use both _________ (side) of the paper.
4. I think our town will look __________ (nice) with more trees around.
5. I think smoking is _______ (harm) to our health. Please give it up.
二、单项选择
1. To protect the environment, supermarkets don’t ______ free plastic bags for shoppers.
A. take B. provide C. show D. carry
2. The students ______about their daily habits by Mr. Wu yesterday morning.
A. are asked B. were asked C. will be asked D. are going be asked.
3. Don’t forget ________ the floor before you leave the classroom after school.
A. clean B. cleaning C. to clean D. to be cleaned
4 . ---It’s time for the weather report. Could I _________ the TV, Dad
---Go ahead, please. I also want to know about the weather for tomorrow.
A. turn down B. turn off C. turn on D. turn over
to get
brushing
teeth
nicer
harmful
sides
当堂反馈二、完成句子
1.现在学生的数量是25人。_____ ______of the students _____ 25 now .
2. 我们应该尽力减少灰尘。We should _____ ______ _______ __________.,
3. 桌上有一只空瓶子,请把它装满牛奶。
There is ____ ________bottle on the table. Please _____ it ______ milk.
4. 水污染对我们有害。 Water pollution _____ ________ ______ us.
5 树木可以防止土壤流失。Trees can keep ________ ______ _________,
The number __
is
try to reduce dust
an empty fill with
is\does harmful\harm to
soil in place
Homework
Review what we learnt today. Finish the exercises.
Talk with your parents, neighbours and friends about ways to protect the environment.
Preview Task on P118~119.
We can …
What can we do or can’t we do to protect the environment
We can’t …
Have a discussion