人教版英语必修三unit4知识点以及相应练习超级好

Unit 4Astronomy: the science of the stars

[背原句] [记句式] [会仿用]

1.This produced a chain reaction, which

made it possible for life to develop.

这就产生了一系列的反应，使得生命

就有可能开始发展了。

句中的it是形式宾语，真正

的宾语是不定式短语to

develop。

这个女孩懂三门外语，这使她更容易找

到一份好工作。

The girl knows three foreign languages,

which makes_it_easier_for_her_to_find a

good job.

2.But when I tried to step forward, I

found I was carried twice as far as on

the earth and fell over.

而当我试着向前迈步时，我发觉我被

送出去很远，步子的跨度竟是在地球

上的两倍，因而我摔倒了。

“...倍数＋as＋形容词/副词原

级＋as ...”是倍数表达法之

一，意为“……是……的多

少倍”。

杰西卡付出的是以前三倍的时间和精

力，所以我相信她这次能成功。Jessica

devoted

three_times_as_much_time_and_energy_as

she did before, so I believe she will succeed

this time.

3.“Oh, dear，” I cried, “walking does

need a bit of practice now that gravity

has changed.”

“天哪，”我大声说，“既然重力改变

了，看来走路也的确需要练一练

了。”

now that “既然；由于”，引

导原因状语从句，有时that

可以省略。

既然它对我们的好处如此多，为什么不

试一试呢？Now_that_it_benefits_us so

much, why not have a try？

第一板块核心单词归纳集释

1．harmful adj.有害的

[经典例句]Experts point out that fruit juices can be harmful to children’s teeth.

专家指出果汁可能损害儿童的牙齿。

①Some boys are too crazy about playing games on the computer, which is very (harm) to

their health.有些男生对玩电脑游戏简直到了痴迷的程度，这对他们的健康非常有害。

2．exist vi.存在；生存

[教材原句]They laid eggs too and existed on the earth for more than 140 million years.

(1)There exists ... 某地有……；存在……

(2)existence n. 存在；生存

come into existence 产生；成立；开始存在

①There_exists a generation gap between the young and the old.

青年人和老年人之间存在着代沟。

②You can’t imagine what difficulty they have existing on the money he’s earning.

你无法想象他们靠他挣的那点钱维持生活是多么的困难。

③Scientists have many theories about how the universe first came into (exist)．

关于一开始宇宙是如何产生的，科学家们有多种观点。

[名师指津]exist是不及物动词，没有被动语态，也不用于进行时态。

3．puzzle vt.使迷惑；使为难n．谜；难题；(游戏的)猜谜

[教材原句]How life began on earth is one of the biggest puzzles that scientists found

Where the lost boy has gone still remains puzzle to us.

丢失的男孩去了哪儿对我们来说仍是个谜。

③His last paintings are perhaps the most ,_which even all the artists.(puzzle)

他最后的一批画作也许是最让人困惑的，这些画作甚至使所有的艺术家们都非常困惑。

[单词集成训练]

Ⅰ.基础点全练

1．单句语法填空

①I can say that it is the most (violence) film that I have ever seen.

②The festival of this year has been a great success, (like) the year before when it rained non-stop.

③The conversation was carried on a harmonious and friendly atmosphere.

④As the old saying goes, it is easier to pull than to build up.

⑤Her (puzzle) look on her face suggested she didn’t understand what I said.

⑥The driver lost control of the car on the slippery road and crashed a truck.

Ⅱ.重难点多练

1．exist全方位

(1)单句语法填空

①There (exist) a good way to solve the (exist) problem at present.

③As is known to us, the Republic of China came into (exist) as an independent country in 1949.

2．harmful面面观

(1)用所给词的适当形式填空

①As we all know, a bad eating habit is (harm) to one’s health.

②As far as I’m concerned, there is no (harmful) in making an apology to him first.

第二板块短语句型归纳集释