to do sth. to do sth. i.e.i.e. I like to have a cup of I like to have a cup of coffee( coffee( 表示现在喜欢表示现在喜欢 ))

I like doing sth I like doing sth i.e.i.e. I like playing video I like playing video games( games( 表示一直以来 表示一直以来

都喜欢 都喜欢 ))

sth. sth. i.e. i.e. I like apple(I like apple( 同上同上 ))

我想要……我想要……I want to (I want to ( 用于较为命令的口气用于较为命令的口气 ))i.e.i.e. I want you to finish the homework. I want you to finish the homework.

I’d like to(I’d like to( 表示很乐意表示很乐意 ))i.e.i.e. I’d like to enjoy the English lessons here. I’d like to enjoy the English lessons here.

wantwant 一般用一般用 want sth,want sth, 说明自己需要什么东西说明自己需要什么东西(( 可以与可以与 needneed 相互交换相互交换 ))

i.e.i.e. I want an apple. I want an apple.

After reading the passage, could you tell me After reading the passage, could you tell me why Santa has to move his workshop?why Santa has to move his workshop?

However, Santa Claus However, Santa Claus maymay have to move his have to move his workshop from the North Pole because global workshop from the North Pole because global warming is thawing the ice beneath his reindeewarming is thawing the ice beneath his reindeers’ feet.rs’ feet.

May, can, could May, can, could 等情态动词在句中做助动等情态动词在句中做助动词表示可能词表示可能

The Arctic Ocean could be The Arctic Ocean could be ice-freeice-free in summer in summer by 2100, due to (because of) the build-up of heby 2100, due to (because of) the build-up of heat-trapping gases(at-trapping gases( 阻挡热量的气体阻挡热量的气体 ) in the at) in the atmosphere.mosphere.

Ice-free adj. Ice-free adj. 无冰的无冰的名词名词 -free -free 无什么的无什么的Fear-free Fear-free 无畏的无畏的Care-free Care-free 无忧的无忧的

In order toIn order to rescue( rescue( 营救营救 ) Santa’s workshop b) Santa’s workshop based on the North Pole, we should build some ased on the North Pole, we should build some kind of electrical facilities.kind of electrical facilities.

In order to In order to 为了……为了…… 经常用在句首表示强调经常用在句首表示强调 In order to have a good grade in his English, In order to have a good grade in his English,

he try his best to studyhe try his best to study

As everybody knowsAs everybody knows,, Greenland belongs to De Greenland belongs to Denmark.nmark.

as……as…… 正如……正如……

As we all knowAs we all know 正如我们都知道的正如我们都知道的 ,, 可以用可以用在写作中在写作中

i.e.i.e. As we all know, China has the biggest p As we all know, China has the biggest population in the world.opulation in the world.

Global WarmingGlobal Warming(Greenhouse Effect)(Greenhouse Effect)

earthearth

The earth absorbs(The earth absorbs( 吸收吸收 ) the heat from the sun.) the heat from the sun.

My name is sun.

Principles(Principles( 原理原理 ))

Principles(Principles( 原理原理 ))

HEATHEAT

The earth The earth

The heat is released(The heat is released( 反射反射 ) from the earth. ) from the earth.

Principles(Principles( 原理原理 ))

COCO22 can absorb( can absorb( 吸收吸收 ) the heat from the earth and ) the heat from the earth and preventprevent it from escaping into space it from escaping into space

CO2

二氧化碳等气体就像温室中的玻璃顶棚一二氧化碳等气体就像温室中的玻璃顶棚一样，既能使太阳光顺畅地透射到大地，又样，既能使太阳光顺畅地透射到大地，又能截留和吸收地表放散出的热量，这就势能截留和吸收地表放散出的热量，这就势必导致大气温度升高，全球气候变暖。 必导致大气温度升高，全球气候变暖。

According to the data since 1958, the COAccording to the data since 1958, the CO22 in the in the

air has been increasing(air has been increasing( 增长增长 ) very fast) very fast

Two major reasonsTwo major reasons

Two reasonsTwo reasons

One of the major reasons is that COOne of the major reasons is that CO2 2 produced produced

by cars released(by cars released( 释放释放 ) into the air.) into the air.

The other is that forests, especially the tropical The other is that forests, especially the tropical forests(forests( 热带雨林热带雨林 ), have been ), have been destroyeddestroyed. (For. (Forests can absorb COests can absorb CO2 2 in the air)in the air)

When the days are getting hot, what do you When the days are getting hot, what do you usually like to do?usually like to do?

Today’s topic Today’s topic

How will the global warming influence(How will the global warming influence( 影响影响 ) u) us?s?

Think about this questionThink about this question

It influence us in two waysIt influence us in two ways

1.Raise(1.Raise( 提升提升 ) the sea level) the sea level

2.Change the weather condition(2.Change the weather condition( 条件条件 ))

The influenceThe influence

Raise the sea levelRaise the sea level

how to raise? how to raise?

Expand(Expand( 使…膨胀使…膨胀 ) the) the

ocean waterocean water

Melt(Melt( 融化融化 ) the polar ) the polar iceice

The influence to humanThe influence to human

The data shows that the sea level has risen by The data shows that the sea level has risen by 10~20 centimeters(10~20 centimeters( 厘米厘米 ) in last hundred year) in last hundred years.s.

It may directly influence the low land countrieIt may directly influence the low land countries and districts(s and districts( 国家和地区国家和地区 ) along the coast.) along the coast.

Change the weather conditionChange the weather condition

evaporate(evaporate( 蒸发蒸发 ) )

land land ocean ocean dryer and dryer

The influence to humanThe influence to human

Some place will become unsuitable to grow crSome place will become unsuitable to grow crops(ops( 农作物农作物 ).).

Some people will have to Some people will have to endureendure(( 忍受忍受 ) the la) the lack of the water.ck of the water.

How to deal with this problemHow to deal with this problem

Improve technology(Improve technology( 技术技术 ) and efficiency() and efficiency( 效效率率 ) in using energy and to exploit new energy ) in using energy and to exploit new energy sourcessources

Enhance(Enhance( 加强加强 ) international cooperation() international cooperation( 合合作作 ))

reviewreview

What are the two influence global warming brWhat are the two influence global warming brings to us?ings to us?

How can we solve(How can we solve(解决解决) these problem raised by global warming?) these problem raised by global warming?

Prevent v.Prevent v.

(1)To keep from happening:(1)To keep from happening:

预防：使防止发生：预防：使防止发生： i.e. took steps to prevent the strike.i.e. took steps to prevent the strike.

采取步骤避免罢工采取步骤避免罢工(2)To keep (someone) from doing something; (2)To keep (someone) from doing something;

阻碍：使（某人）不做某事；阻挠：阻碍：使（某人）不做某事；阻挠： i.e. prevented us from winning.i.e. prevented us from winning.

阻挠我们获胜阻挠我们获胜

destroy v.destroy v.

完全破坏；消灭完全破坏；消灭 (( 不可恢复的不可恢复的 ))

i.e. The house were destroyed by fire.i.e. The house were destroyed by fire.

damagedamage

损害，破坏损害，破坏 (( 可以恢复的可以恢复的 ))

i.e. The ice-cream will damage your stomachi.e. The ice-cream will damage your stomach

Influence v.Influence v.影响影响 , , 意思用法同意思用法同 affectaffecti.e. The slight change of weather can affect her i.e. The slight change of weather can affect her

delicate health.delicate health.

Influence n.Influence n.影响影响 ,, 意思用法同意思用法同 effecteffecthave an influence (effect) on sthhave an influence (effect) on sthi.e. This pill may have an influence (effect) on the di.e. This pill may have an influence (effect) on the d

isease.isease.对什么起作用对什么起作用 ,, 对什么有影响对什么有影响

忍受忍受EndureEndureBear Bear Stand Stand Put up with Put up with

Bear Stand Endure Put up withBear Stand Endure Put up with

weak strongweak strong忍受程度忍受程度