《Earth first》SectionⅡPPT

描述

《Earth first》SectionⅡPPT

第一部分内容：新知感悟

重点单词

阅读词汇 (在不认识的单词前划√)

□highlight v．□hunting n．　 □presentation n．

□reserve n．　 □drought n． □flood n．　

□restore v. □sustainable adj. □carbon n.

□greenhouse n. □brochure n. □solar adj.

□release v. □smog n. □fog n.

□severe adj. □infection n. □slide n.

□false adj. □device n. □mode n.

□leak v. □plug n. □campaign n. □canteen n.

写作词汇

1. __________ n. 海洋，大海

2．__________ n. 员工

3．__________ v. 建立，设立

4．__________ v. 破损，损害，损伤

5．__________ v. 影响

6．__________ n. 煤气、电力、自来水等供应(系统)

重点短语

1. _______________ 目标是……； 旨在做……

2．_______________ 阻止……做……

3．_______________ 被用来做……

4．_______________ 照顾；照看

5．_______________ 大多数……

6．_______________ 把……误认为……

7. _______________ 分解

重点句型

1.It takes time/money (for sb./sth.) to do sth.：It _____________________________________________ (塑料需要几百年才能分解) ...

2．倍数句型：However, making a paper bag uses __________________________________________________ (所消耗的能量是制作塑料袋的四倍) and up to three times the amount of water.

3．强调句型：_____________________________________ (是食物的生产而不是食物的运输) uses most of the energy and produces most of the greenhouse gases.

... ... ...

Earth first PPT，第二部分内容：语篇理解

Read the text on Pages 68－69 and choose the best answer.

1．Why does the writer write the passage?

A．He wants to introduce some new ways to save energy.

B．He wants to correct the false green truths and show really green ones.

C．He wants to call on more people to protect the environment.

D．He wants to explain the importance of energy saving.

2．In the following, which one is NOT the disadvantage of plastic bags?

A．Causing litter.

B．Being treated as food by wild animals.

C．Taking much more time to break down.

D．Using much more energy to produce.

3．Why do people prefer to each local food?

A．Because it can save the energy used to transport.

B．Because it tastes better than the food transported long away.

C．Because its production uses less energy.

D．Because it produces less greenhouse gas.

4．According to the passage, when should you take a shower?

A．Anytime you like.

B．When you spend less than 8 minutes in a shower.

C．When your bath is quite large.

D．When you use about 50 litres of water.

... ... ...

Earth first PPT，第三部分内容：词汇精研

1.devote　 vt.致力，献身，倾注

(教材P65) Now, she is a model and performance artist devoted to ocean conservation.

现在，她是一位致力于海洋保护的模特和表演艺术家。

(1)devote...to...　 把……奉献给；把……专注于……

devote oneself to 致力于；献身于

(2)devoted adj. 深爱的；忠诚的

be devoted to 专心于；致力于

(3)devotion n. 热爱；奉献

①I don’t think we should devote any more time to this question.

我认为我们在这个问题上不应该花费更多的时间了。

②He devoted all his spare time to _______ (help) his students with their English.

他把所有的业余时间都用来帮助他的学生学习英语。

③(四川卷)Before the exam，I devoted myself to________ (prepare) for it.

考试之前，我全身心备考。

④We were deeply touched by his ________ (devote) to world peace.

他一心为世界和平做贡献，这使我们深受感动。

2. damage　 v．& n．破损，损害，损伤

(教材P65)In recent years, we have seen large areas of wetland that were damaged by human activity.

近年来，我们看到大片湿地被人类活动破坏。

①Do away with the bad habits that might damage your health.

去掉那些有可能损害你健康的坏习惯。

②Damage ________ (cause) by the earthquake disaster can’t be ignored.

地震灾害导致的损失不容忽视。

③Eating too much meat one time will do damage ________ your stomach.　一次性吃太多的肉会对你的胃造成损害。

3. affect　 v．影响；感动，打动

(教材P65)We’ve also seen droughts and floods caused by these changes, which affect the water supply downstream.

我们也看到了这些变化造成的干旱和洪水，它们影响了下游的供水。

(1)be greatly/deeply affected by　被……深深感动

(2)effect n. 作用；影响

have an effect on 对……产生影响

①I had to make important decisions that would affect me for the rest of my life.

我不得不作出影响我后半生的重大决定。

②All the people in the room ________________ (affect) to tears by his story.

屋里所有的人都被他的故事感动得流下了眼泪。

③The weight­loss pill has a strong side effect ________ people’s hearts.

这种减肥药对人的心脏有极强的副作用。

... ... ...

Earth first PPT，第四部分内容：句型精析

1.It takes time (for sb./sth.) to do sth.

(教材P68)It takes hundreds of years for plastic to break down...

塑料需要几百年才能分解……

It takes (sb.) some time to do sth.意为“做某事花费(某人)多少时间”，其中It为形式主语， 后面的不定式短语to do sth. 是真正的主语。此外， take 还可表示“需要” 之意， it takes/took...to do sth.做某事需要……

(1)sth. take (sb.) some time某事花费(某人)多少时间

(2)sb.spend some time/money (in) doing/on sth.某人花费多少时间/金钱做某事

(3)sth. cost (sb.) some time/money某事/物花费(某人)多少时间/金钱

(4)sb.pay some money for sth./to do sth.某人花费多少金钱为某物/做某事

①It took me quite a long time to understand the meaning of the painting.

我花了相当长的时间才理解那幅画的意义。

②Believe it or not, it takes great courage ____________ (tell) the truth.

信不信由你，说实话需要勇气。

(2)a.We’ll have to save as much as possible in order to________________________. (pay)

为了买新房子，我们不得不尽量节俭。

b．I ______________________________ my bike. (pay)

我付给他20美元修自行车。

(3)The book________________________. (cost)

这本书花了我8美元。

2. 倍数句型

(教材P68)However, making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water.

然而，制作纸袋所消耗的能量是制作塑料袋的四倍，水的消耗量是塑料袋的三倍。

句中four times as much energy as making a plastic bag是倍数比较的常用形式，其结构为： ...倍数＋as many/much＋n.＋as...。

常见的倍数句型：

A is＋倍数＋as＋adj./adv.的原级＋as＋B.

A is＋倍数＋adj./adv.的比较级＋than＋B.

A is＋倍数＋the size/length/height/depth/width＋of＋B.

①This year our company has published twice as many books as we did last year.

今年我们公司已经出版的书是去年的两倍。

②There is four times as much water in this pot as in that one.

这个壶里的水是那个壶里的四倍。

③The new stadium built for the 2022 Winter Olympics will be three times ____________ big as the present one.

为迎接2022年冬季奥运会而修建的体育场将是现在的三倍大。

④This street is four times the____________ (long) of that one.

这条街是那条街的四倍长。

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更新时间: 2024-07-22

所属频道：外研版高中英语必修二

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