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高中英语 Unit 4 Section Ⅱ Warming Up & Reading Language Points课件 新人教版必修3_图文

高中英语 Unit 4 Section Ⅱ Warming Up & Reading Language Points课件 新人教版必修3_图文

Unit 4 Section Ⅱ 语言点一 识 记 掌 握 理 解 拓 展 应 用 落 实 语言点二 识 记 掌 握 理 解 拓 展 应 用 落 实 语言点三 识 记 掌 握 理 解 拓 展 应 用 落 实

(一)词义匹配 1.Atmosphere 2.system 3.fundamental A.a group of related parts which work together forming a whole B.the mixed gases that surrounds the earth C.for that reason; for this reason

5.thus 6.multiply

D.increase, add to the number of
E.very important or necessary F.idea that tries to explain something

答案:1~6 BAEFCD


7.A big violent (violence) earthquake occurred in Fudao,
Japan in March of last year. 8.Being exposed to the sunlight for a long time will be harmful (harm) to one’s skin. 9. Unlike (like) his brother, he is talkative (健谈的) and has a

sense of humour. 10.The puzzling (puzzle) problem made students present puzzled (puzzle).

1.violent adj.猛烈的;激烈的;强暴的 (一)背诵佳句培养语感 (教材原句)The earth became so violent that it was not clear whether the shape would last or not. 地球(开始)变得激烈动荡,不知道这个固体形状是否会 继续存在下去。

(鲜活例句)A violent storm hit the city last night, which caused a lot of damage. 昨天夜里,暴风骤雨袭击了这座城市,造成重大损失。 (鲜活例句)When the man got drunk, he became very violent.


(二)归纳拓展全析考点 (1)violently adv.
(2)violence n.


with violence


You’d better not shut the window violently/with violence.

Larry was in violent pain.As a result, he behaved violently

and treated everything with violence.
拉里处于极度痛苦之中,因此他表现得很粗暴,一切都以 暴力对待。

2.exist vi.存在;生存
(一)背诵佳句培养语感 (教材原句)They laid eggs too and existed on the earth for more than 140 million years. 它们也生蛋,在地球上生存了一亿四千多万年。 (鲜活例句)Nothing exists on the moon as there is no water and no air.


(二)归纳拓展全析考点 (1)exist in 存在于

exist on
There exists/existed ... (2)existence n. come into existence in existence

某地有……;存在…… 存在;生存 开始存在;成立 现存的;现有的

①Do you believe in the existence of ghosts?Perhaps they only
exist in some people’s imagination.

②He finds it hard to exist on the money he’s earning.

③No one knows when the custom came into existence . 没有人知道这个风俗是何时开始存在的。

3.unlike prep.不同;不像 (一)背诵佳句培养语感


(教材原句)Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later.


(鲜活例句)Unlike her classmates, every morning Ann gets up
early to do some reading in the classroom.

(鲜活例句)They are so unlike that nobody would believe they were sisters. 她们毫无相似之处,谁也不相信她们是姐妹。


(1)It’s unlike sb.to do sth. 做……不像某人平常的样子
unlikely adj. (2)likely adj. be likely to do sth. It’s likely that ... 不大可能发生的;未必会发生的 可能的 可能做某事 有可能……

①It’s very unlike him to be so late.
迟到这么久可实在不像他平时的作风。 ②He’s likelyto arrive a bit late. 他可能会晚到一会儿。 ③ It’s likely that he will not attend the meeting. 有可能他不参加会议。

4.harmful adj.有害的
(一)背诵佳句培养语感 (教材原句)What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.


(鲜活例句)It’s harmful to your eyes to read books in the bus.

(鲜活例句)According to the research, too much sun is harmful
to the skin. 根据调查研究,晒太多太阳对皮肤有害。

(二)归纳拓展全析考点 (1)be harmful to (2)harm vt.& n. do harm to (= do ...harm) 对……有害 伤害;损害 对……有害

There is no harm in doing sth. 做某事没有害处

(3)harmless adj.


①The medicine is harmful to children but does no harm

to adults.
这种药对儿童有害,却对成年人没有什么害处。 ②This case will do serious harm to my life. 这起案件将严重损害我的生活。

5.puzzle n.难题;谜

vt.& vi.(使)迷惑;(使)为难

(一)背诵佳句培养语感 (教材原句)How life began on earth is one of the biggest

puzzles that scientists found hard to solve.
地球上的生命是如何起源的是科学家们最难以解答的问题 之一。 (鲜活例句)What puzzled me was why they didn’t take her advice.



(1)be in a puzzle
puzzle about/over


(2)puzzling adj.
puzzled adj. be puzzled about

感到迷惑的 对……迷惑不解

The puzzled look on her face suggested she was puzzling over

the puzzling math problem.
她困惑的表情暗示了她正在思考那个令人困惑的数学问题。 I have been puzzled about this question for weeks. 我对这个问题已迷惑不解了好几个星期。

点此进 入

1.solar system 2.a widely accepted theory 3. in time 4.cool down 5.be fundamental to 6.a chain reaction 7. lay eggs 8.give birth to 9.in one’s turn 10. prevent ...from


及时;终于 冷却下来;变凉

连锁反应 下蛋 产生;分娩 轮到某人;接着 阻止;制止

1.in time及时;终于;迟早 (一)背诵佳句培养语感

(教材原句)They were in time to produce carbon, nitrogen,
water vapour and other gases, which were to make the earth’s atmosphere. 它们最终产生了碳、氮气、水蒸气和其他气体,这些后来 形成了地球的大气层。

(鲜活例句)Lucky for him, he was just in time for the bus. 幸运的是,他及时赶上了公共汽车。 (鲜活例句)You will succeed in time as long as you don’t give up.


(二)归纳拓展全析考点 in time for sth. 赶上某事

in no time
at one time at times from time to time at no time

曾经;一度 有时;偶尔 有时;偶尔 从不;决不

at a time


①Do one thing at a time and do it well.
一次只做一件事情,并且要做到最好。 ②At no time should we give in to difficulties. 我们在任何时候都不能向困难屈服。 [点津] at no time用在句首时,句子要部分倒装。in no time 相当于at once或immediately,用于句首不倒装。

2.in one’s turn轮到某人;接着

(教材原句)Thus they have, in their turn, become the most important animals on the planet. 于是,他们接着成为了这个行星上最重要的动物。 (鲜活例句)They, in their turn, made some advice for the

他们接着为这项计划提了一些建议。 (鲜活例句)When it is in my turn, I am too excited to speak. 当轮到我时,我激动得都说不出话来了。

in turn 依次;轮流;逐个;相应地;

by turns 轮流;依次

take turns doing/to do sth. 轮流做……
It’s one’s turn to do sth. 轮到某人干某事

①All theories are from practice and in turn serve practice.

②They took turns to care about their parents. 他们轮流照顾他们的父母。 ③It is my turn to clean the classroom this week. 这周轮到我打扫教室了。

3.prevent ...from阻止;制止

(教材原句)They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. 他们把过多的二氧化碳释放到大气层中,这使得地球上 的热不能释放到太空中去。

(鲜活例句)All possible means have been tried, but nothing can prevent him (from) dying of lung cancer. 任何可能的方法都尝试了,但也没能阻止肺癌夺走他的生命。

(鲜活例句)No one can prevent this plan from being carried out.

prevent+宾语+?from? doing? ? stop+宾语+?from? doing ?阻止……干某事 ? keep+宾语+from doing ? protect ...from (against) ...保护……不受……侵袭 (from后接能带来伤害或损害之物)

①They were stopped /prevented from entering the burning

他们被拦在了燃烧着的大楼外面。 [点津] 表示“阻止……干某事”的三个短语,在被动语态中, from都不能省略。 ②He put on his sunglasses to protect his eyes from the strong


点此进 入


What_it_was_to_become was uncertain until

between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. 随后它会变成什么没人能知道,直到45~38亿年前,这团 尘埃才慢慢地形成了一个固体的球状物。 [典例背诵] What impresses me most is that he seems a pleasant man.



The earth became so violent that it was not

clear whether the shape would last or not. 地球(开始)变得激烈动荡,不知道这个固体形状是否会继 续存在下去。 [典例背诵] He is so clever that he worked out the problem in such a short time.



This produced a chain reaction, which

made_it_possible for life to_develop. 这就产生了一个连锁反应,使生命的发展成为可能。 [典例背诵] He makes it a habit that he gets up/to get up/getting up at six every day.



So whether life will continue on the earth

for millions of years to come will depend on whether this problem_can_be_solved.

取决于这个问题能否得到解决。 [典例背诵] Whether they come or not is all the same to me. 他们来不来对我来说都一样。

1.What_it_was_to_become was uncertain until between 4.5

and 3.8 billion years ago when the dust settled into a solid
globe. 随后它会变成什么没人能知道,直到45-38亿年前,这 团尘埃才慢慢地形成了一个固体的球状物。


①What surprised everybody was that he didn’t come to the
meeting. 使大家惊奇的是他竟没有参加会议。 ②What I suggest is that you should apologize to him. 我建议你去向他道歉。

③It is wonderful that all of you have passed the difficult exam. 真是太棒了,你们都通过了那次很难的考试。 ④It doesn’t matter whether he will come to attend the meeting or not. 他来不来参加会议无足轻重。


谓语常用“should+动词原形”,should可省略。 (2)what引导主语从句意为“所……的(东西)”在从句中充当句 子成分;that引导时不充当句子成分,通常不可省略。 ⑤It is advisable that she (should) take a couple of days to rest.

⑥That he will refuse the offer is unlikely. 他不可能拒绝这个报价。

2.So whether life will continue on the earth for millions of years to come will depend on_whether_this_problem can_be solved. 所以,在未来的数百万年中,生命能否在地球上延续将取 决于这个问题能否得到解决。 (1)该句是一个主从复合句,第一个whether引导的从句为主语 从句;第二个whether引导的从句作介词on的宾语。 ①She was uncertain about whether she should accept his offer. 她拿不准是否应该接受他的好意。

②Everything depends on whether you agree with us.

(2)引导名词性从句时用whether或if的区别: ?whether可以直接和or not连用,if不可以; ?引导位于句首的主语从句,用whether不用if; ?引导表语从句、同位语从句,用whether不用if;

?动词discuss,leave,put及介词之后的宾语从句,用 whether不用if。

③ It is uncertain whether/if he’ll succeed in passing the

driving test (or not).

④ The question is whether the film is well worth seeing.

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