英语八年级下册Welcome to the unit教学ppt课件

这是一份英语八年级下册Welcome to the unit教学ppt课件，共29页。PPT课件主要包含了Exercises等内容，欢迎下载使用。
What prblems d human beings cause?
Air pllutin
Water pllutin
T much waste
Energy shrtage
Hw t reduce air pllutin?
reduce vt. & vi. 减少，降低
e.g. We can reduce air pllutin by riding bicycle.
Hw t save water?
take a shwer
e.g. We can save water by taking shrter shwer.
Hw t save energy?
turn ff 关上（开关）
e.g. We can save energy by turning ff the lights when we leave a rm.
Hw t prtect the envirnment?
recycle vt. 回收利用，循环利用
e.g. We can prtect the envirnment by recycling things.
前缀:re (再,又)
reuse vt. 再使用，重新使用reusable adj. 再使用，重新使用
Welcme t the unit
A green life
A Ways t live a green life
The class 1, Grade 8 students are talking abut ways t live a green life. Lk at the pictures belw and match them with the crrect sentences.
a. We can reduce air pllutin by riding bicycles.
b. We can save water by taking shrter shwers.
c. We can save energy by turning ff the lights when we leave a rm.
d. We can prtect the envirnment by recycling waste.
Hw t live a green life?
Hw can we change t live a green life?
Being driven t schl
Taking the undergrund
Chsing public transprt
Taking shrter shwers
Turning ff the lights
Chsing private cars
Taking baths
Leaving lights n
T reduce pllutin
T save water
T save energy
Replace plastic bags with reusable clth bags.
Pick up yur litter whenever yu are utside.
Separate and recycle the different types f waste.
Use bth sides f paper t maximize its use.
Make sure taps are cmpletely turned ff.
Have a shwer instead f a bath.
Turn ff the water while brushing yur teeth.
Turn ff the lights and electrnic devices that are nt in use.
Task 1 Lk and answer
What is Hb ging t d?What is Eddie ding?
Planting trees.
Eddie is lying dwn and dreaming f a tree with bread n it.
breadfruit n. 面包果
Task 2 Listen and answer
Why des Hb want t plant trees?What is Eddie ding?Will Eddie take actin?
Because trees are gd fr us.
Eddie wants t jin Hb, because he likes digging in the garden.
Task 3 Read and fill
Spring is cming. Eddie asks Hb what he is ging t d. Hb says he is ging t plant _____. Eddie asks if mre trees will be ________ this year. Hb says yes because trees are _____ fr everybdy. Eddie wants t g with Hb. He says he likes ________ in the garden. Oh, is he _______? Everyne knws Eddie used t be _____. Has Eddie changed? Of curse nt. What he really wants is _________ breadfruit trees s that he can eat lts f breadfruit. Eddie really enjys _______!
Language pints
1. 打算、计划做某事2. 植更多的树3. 在花园里挖沟4. 种植面包果树5. 对…... 有好处
be ging t d sth.plant mre trees dig in the gardenplant breadfruit treesbe gd fr …
6. 减少空气污染7. 淋浴8. 节约水/能源9. 开/关灯10. 引起严重的空气污染11.公共交通工具
reduce air pllutin take shwerssave water/energyturn n/ff the lightscause serius air pllutinpublic transprt
Are yu serius? 你是认真的吗？ serius adj. 认真的，严肃的 —— seriusly adv. 认真地，严肃地 e.g. 那个老人看起来很严肃。 The ld man lks very serius. be serius abut sth.= take sth seriusly 认真，严肃对待   e.g.你应该认真工作。 Yu shuld be serius abut yur wrk. = Yu shuld take yur wrk seriusly. 
2. What shuld we d t live a green life, class? 同学们，为了过绿色生活我们该做什么呢? live a … life “过着……（样）的生活”e.g. 我祖父母过去过着贫穷的生活。 My grandparents lived a pr life in the past.
3. Mre and mre families wn cars and this causes serius air pllutin.
The air pllutin is becming mre and mre serius.
越来越多的家庭拥有自己的汽车并且这导致了严重的空气污染。
空气污染变得越来越严重了。
mre and mre families意为“越来越多的家庭”，mre and mre意为“越来越多”，既可修饰可数名词又可修饰不可数名词。
“越来越……”，用“比较级＋ and＋比较级”的句型。“越……，就越……”，用“the＋比较级，the＋比较级”的句型。
4. Mre and mre families wn cars and this causes serius air pllutin.cause v. 意为“导致;造成”固定结构:cause sb. sth. 意为“给某人造成某事” = cause sth. fr sb.; cause sb./sth. t d sth. 意为“导致某人/某事做某事”。
What was ____________the fire? 起火原因是什么?
I'm afraid I will ______________________________. 我担心我会给你造成许多麻烦。
cause yu much truble
the cause f
cause n. 意为“原因，起因”。固定短语the cause f “意为的原因”。
5. It's wise fr peple t chse public transprt r ride bicycles.wise adj. 意为“明智的，充满智慧的”
________________ remain silent.你保持沉默,这很明智。
It's wise f yu t
2021盐城市中考Chse hw yu spend yur spare time and with whm yu spend it _______ (wise).
wisdm n. 意为“智慧”wisely adv.意为“明智地”
I learnt many wrds f ________. 我学了很多至理名言。
They've invested their mney_______.他们已经明智地投资了他们的钱。
6. We can save energy by turning ff the lights when we leave a rm.
我们可以通过离开房间时关灯来节能。
turn ff “关掉(电源开关、水龙头、液化气阀门等)”。turn n 打开(电源开关、水龙头、液化气阀门等), turn up 调大/调高/调亮， turn dwn 调小/调低/调暗。
1. (2020·徐州)We can ________ the TV. Nbdy is watching it. A. turn ffB. turn nC. turn up D. turn dwn2. (2020·黔南)Wuld yu please ________ the light? It's very dark nw. A. turn t B. turn nC. turn ff D. turn arund