資源簡介

(共47張PPT)
Unit 8 Protecting the environment
8.4
Global warming
1 Read the questions and give your answers.
A What problems do you think our environment is facing now
B Do you think these problems are related to human activities？
與······相關；和······有聯系
2 Read the passage and write true (T) or false (F).
The earth is getting hotter. We call it global warming. What makes this happen People burn things like gas，oil，and coal. They cut down trees and create a lot of waste. These are major reasons for global warming.
[動詞]發生；碰巧
把······砍倒；減少
Global warming affects everything on the planet. It′s like getting a fever. If we have a few degrees′ increase in body temperature，we feel sick. The same goes for our planet. The effects of global warming are serious. For example，snow and ice in the North Pole are starting to melt.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If 引導的條件狀語從句。
[形容詞] 生病的，有病的
[形容詞]嚴重的；嚴肅的；認真的
This causes the oceans′ water level to rise， which can lead to more floods and storms.
Thankfully，we can help slow down global warming by taking some simple action. Instead of driving，we can choose to walk or bike.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
which引導的非限制性定語從句，which指代前面整個主句的內容。
[動詞]導致；造成；引起
[動詞]上升；(太陽、月亮等)升起；增加；站起來
代替；而不是
Turn off devices we aren′t using like TVs and lights. Another great way to help is by planting trees in our community and doing other “green” activities. Just by making some small changes in our daily lives，we can play a role in addressing global warming.
關閉；關掉
[動詞] 設法解決；演講
A Global warming is mainly caused by nature. ( )
B Global warming affects everything on the planet. ( )
C Planting trees is a great way to slowdown global warming.
( )
F
T
T
3 Read the passage again and complete the mind map.
Global warming
reason
solution
effect
burn things like __________，__________，and __________
___________down trees
create a lot of ______________
gas
oil
coal
cut
waste
Snow and ice in the North Pole are starting to ______.
The oceans′ water level is ___________.
Global warming
reason
solution
effect
melt
rising
choose to ________ or _______.
turn off _______________________________ _____________________________________.
plant trees and do other“green” __________
Global warming
reason
solution
effect
walk
bike
devices we aren′t using like TVs and lights
activities
4 Are there things you can do to slow down global warming Think and tick.
□ Use energy sources such as solar and wind power.
□ Let people around you know about the harm of global warming.
□ Take shorter showers to save water and energy used for heating the water.
□ Choose environmentally-friendly products with less packaging.




□ Use things again or recycle them for other purposes.
□ Attend environmental clubs to learn more about the environment.
□ Try to eat less meat and more vegetables.



5 There are many other environmental problems, Think and write about one of them.
A What is the problem
B What do you think are the causes of this problem
C What are its effects
D What should we do to solve this problem
1. Do you think these problems are related to human activities 你認為這些問題與人類活動有關嗎 (教材第 106 頁，1)
be related to 與······相關；和······有聯系
Your taste in music is related to your personality.
你的音樂鑒賞力跟你的個性有關。
[拓展]
① relate [動詞] 把······聯系起來
relate... to... 把······和······聯系起來
I can′t relate what he does to what he says.
我沒法把他做的和說的聯系起來。
② relationship [名詞] 聯系，關系
She has a very close relationship with her younger sister.
她和她妹妹關系非常親密。
③ relative [名詞] 親戚
Get a relative to look after the children.
找個親戚來照看這些孩子。
2. What makes this happen 是什么導致了這種情況的發生 (教材第 106 頁，2)
happen [動詞] 發生；碰巧
happen 作動詞，在此處意為“發生”，尤指偶然發生。
常見用法如下：
① sth. happen(s)/happened＋地點/時間 某事發生在某地/某時
The story happened in Beijing. 這個故事發生在北京。
② sth. happen(s)/happened to sb. 某事發生在某人身上
A car accident happened to him this morning.
今天早上他出車禍了。
③ sb. happen(s)/happened to do sth. 某人碰巧做某事
I happened to know that my father used to collect stamps.
我碰巧知道我爸爸以前常常收集郵票。
④ It happens/happened that... 碰巧······
It happened that her parents were both out.
碰巧她的父母都不在家。
[拓展]
take place 意為“發生”，常表示有計劃、有組織地發生或舉行。
Great changes have taken place in my hometown since 1980.
自1980年以來，我的家鄉發生了巨大的變化。
[注意]
happen 和 take place 不用于被動語態。
3. They cut down trees and create a lot of waste. 他們砍伐樹木并產生大量廢物。(教 材第 106 頁，2)
cut down 把······砍倒；減少
cut down 為“動詞＋副詞”型短語，當其賓語為代詞時，代詞應置于 cut 和 down 之間；當其賓語為名詞時，名詞置于 cut 和 down 之間或 down 之后均可。cut 的過去式和過去分詞均為 cut。
[拓展]
cut 的其他常見搭配：
cut up 切碎
cut off 切掉；打斷；中斷
cut out 停止運轉；裁剪
He cut up the meat. 他把肉切碎了。
Our water supply has been cut off. 我們斷水了。
The engine cut out.發動機熄火了。
4. If we have a few degrees increase in body temperature，we feel sick. 如果我們的體溫升高幾度，我們會感到不適。(教材第 106 頁，2)
increase / n kri:s/ [名詞] ①增加；增長；增大
The increase in population makes it hard for the earth to support so many people.
人口的增長使地球難以供養如此多的人。
increase ② [動詞] 增加；增長；增多
increase to 增加到 (后接增長后所得的數)
increase by 增加了(后接增加了的數量、倍數或百分數)
4. If we have a few degrees increase in body temperature，we feel sick. 如果我們的體溫升高幾度，我們會感到不適。(教材第 106 頁，2)
sick [形容詞] 生病的，有病的
Mary can′t come today because she is sick.
瑪麗今天不能來了，因為她生病了。(作表語)
I have to look after my sick grandpa.
我得照顧生病的(外)祖父。(作定語)
[辨析]
sick 與 ill
sick 生病的，有病 可作表語、定語、補語
惡心的，想吐的 通常作表語、補語
ill 有病，不舒服 通常作表語、補語
[注意]
sick 可以和定冠詞 the 連用，表示名詞的意義，指一類人；而 ill 沒有這樣的用法。
The nurses are looking after the sick.
護士正在照看病人。
5. The effects of global warming are serious. 全球變暖的影響是嚴重的。(教材第 106 頁，2)
serious / s ri s/ [形容詞] 嚴重的；嚴肅的；認真的
serious 的副詞形式為 seriously，意為“嚴重地；嚴肅地；認真地”。
What was worse，he developed a serious illness and became blind. 更糟糕的是，他得了一場重病失明了。
常見搭配：
be serious about sb./sth. 意為“認真對待某人/某事”；
同義短語為： take sb./sth. seriously.
You should be serious about the problem.
＝You should take the problem seriously.
你應該認真對待這個問題。
[拓展]
nothing serious 不嚴重；沒什么問題
It′s nothing serious，but you′d better stay in bed for a day or two.
不嚴重，但是你最好臥床休息一兩天。
6. This causes the oceans′ water level to rise，which can lead to more floods and storms. 這導致海洋水位上升，從而可能引發更多的洪水和暴風雨。(教材第 106 頁，2)
cause /k :z/ [動詞] 導致；造成；引起
cause的常見用法如下：
① cause sth. 導致某種后果
Smoking may cause lung cancer. 吸煙可能導致肺癌。
② cause sb. to do sth. 導致某人做某事
A traffic accident caused him to lose his leg.
一場交通事故導致他失去了他的腿。
③ cause sb. sth. 給某人造成······
He caused his friends much unhappiness.
他弄得他的朋友們很不愉快。
[拓展]
① cause 作名詞，意為“原因”。常見搭配 the cause of 意為“······的原因”。
In my opinion，reading on mobile phones too often is one of the causes of having poor eyesight.
在我看來，經常在手機上閱讀是導致視力差的原因之一。
② cause 作名詞，意為“理由”。
We have no cause to question his honesty.
我們沒有理由來質疑他的誠。
③ cause 作名詞，意為“事業；奮斗目標”。
World peace is a cause we should all work for.
爭取世界和平是一項我們都應該為之努力的事業。
6. This causes the oceans′ water level to rise，which can lead to more floods and storms. 這導致海洋水位上升，從而可能引發更多的洪水和暴風雨。(教材第 106 頁，2)
rise [動詞] 上升；(太陽、月亮等)升起；增加；站起來
rise 的過去式為 rose，過去分詞為 risen。當 rise 作“(太陽、月亮等) 升起”講時，其反義詞為 set，意為“(太陽、月亮等)落下”。
[辨析]
rise 與 raise
rise 不及物動詞 “上升；升起；增加；站起來”，指自然界的日、月等升起,也可指人或事物自身不借助外力站起來
raise 及物 動詞 “提升；舉起”，指使人或事物借助外力升高，如 raise one′s hand“舉手”
7. Instead of driving，we can choose to walk or bike. 代替開車，我們可以選擇步行或騎自行車。(教材第 106 頁，2)
instead of 代替；而不是
其后接名詞、代詞或動詞 -ing 形式。
She went to the library instead of staying at home.
她去圖書館了，而不是待在家里。
[辨析]
instead of 與 instead
instead of 短語 介詞 常用于句中，后跟名詞、代詞或動詞 -ing 形式
instead 副詞 既可用于句首，又可用于句尾。當用于句首時，其后常用逗號與后面的內容隔開
8. Turn off devices we aren′t using like TVs and lights. 關閉我們不使用的設備，如電視或電燈。(教材第 106 頁，2)
turn off 關閉；關掉
turn off 為短語動詞，多指關閉水龍頭、煤氣、電燈等，其反義短語為 turn on，意為“打開”。
Please turn off the tap when you leave.你離開時請關掉水龍頭。
I want to turn on the television. 我想打開電視機。
[拓展]
① turn up 開大；調高
Could you turn up the radio，please
請把收音機開大點聲好嗎
② turn down 關小；調低
Would you mind turning down the TV
你介意把電視的音量調低一點兒嗎？
[中考鏈接]
(2024 江蘇連云港中考) To live a green life，we should remember to ________ the lights when we leave a room.
A. turn on B. turn off
C. turn up D. turn down
B
9. Just by making some small changes in our daily lives，we can play a role in addressing global warming. 僅僅通過在日常生活中作出一些小的改變，我們就能在應對全球變暖方面發揮作用。(教材第 106 頁，2)
address / dres/ ①[動詞] 設法解決；演講
He will address a meeting tomorrow.
他明天將在會議上發表演講。
address ②[名詞] 地址；演講
Is that your home address 那是你的家庭住址嗎
They interrupted his address. 他們打斷了他的演講。
I. 根據漢語提示填寫單詞
1. That doesn′t__________ (發生) very often.
2. There is no _________ (理由) for concern.
3. ___________ (幸虧)，no one was hurt.
4. A few minutes later the ___________ (暴風雨) broke.
5. Be ___________ (嚴肅的) for a moment.
happen
cause
Thankfully
storm
serious
Ⅱ. 用所給單詞的適當形式填空
1. There is no reason __________(blame) yourself.
2. Water freezes at zero __________ (degree) Celsius.
3. Smoking ____________ (serious) damages your health.
4. I accepted the invitation __________ (thankful).
5. __________ (act) speak louder than words.
to blame
degrees
seriously
thankfully
Actions

展開更多......

收起↑