内容正文:
Unit7 Natural Disasters
同步梳理
1、 重点短语
acid rain 酸雨
electric car 电动汽车
heat waves 热浪
make a change 作出改变
due to 由于
public transportation公共交通
environmental protection环境保护
2、 重点句子
1.It seems there have been more natural disasters these years.
这些年似乎自然灾害更多了。
2. It is lucky that people have decided to make a change.
幸运的是,人们决定做出改变。
3. It seems there have been more floods these years than before.
这些年的洪水似乎比以前多了。
4.It’s what we should do right now.
这是我们现在应该做的。
5. And the most important thing is how we can have more people join us.
6.It is known that sandstorms are caused naturally by strong winds blowing over loose soil or sand.
众所周知,沙尘暴是由强风吹过松散的土壤或沙子自然引起的。
7.It is lucky that humans have realized the importance of sustainable development as well as the environmental protection, and things are getting better.
幸运的是,人类已经意识到可持续发展和环境保护的重要性,而且情况正在好转。
8. It is known that sandstorms are caused naturally by strong winds blowing over loose soil or sand.
众所周知,沙尘暴是由强风吹过松散的土壤或沙子自然引起的。
三、重要语法
主语从句和表语从句
主语从句在主句中充当主语,可以分为3类:
1. 由从属连词that、whether、if引导
主语从句在句首时,不能用if,只能用whether。
That she survived the accident is a miracle.
Whether we will hold a party tomorrow depends on the weather.
2. 由连接代词who、whom、whose、which、what、whoever、whatever等引导
Whoever breaks the law should be punished.
3. 由连接副词when、where、why、how引导
Where the test will be given is not yet decided.
为了避免主语部分过于冗长,导致句子头重脚轻,通常使用it作为形式主语,而主语从句放在后面作为真正的主语。
It is certain that she will do well in her exam.
It is common knowledge that the whale is not a fish.
It was reported that the US was under the terrorist attack.
表语从句又叫主语补语从句,在主句中充当表语,位于系动词之后。
与主语从句类似,表语从句也可以用从属连词、连接代词、连接副词引导。
The fact is that we have lost the game.
This is what I want to tell you.
The question is how he did it.
reason作主语或why引导的主语从句作主语时,表语从句用that引导,不用because。
The reason is that he got up late.
Why he is absent is that he got up late.
表语从句that is because...强调原因,that is why...强调结果。
I was angry. That was because he didn’t understand me.
That is why she failed to pass the e