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book 3-unit4 重点句型、主从(handout1)

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Book 3 Unit 4 Astronomy: the science of the starsReading How Life began on the Earth重点句型解析1. (Para1.Line1-line2) However, a widely accepted theory, the universe began with a “Big Bang” threw matter in all directions.句形分析1)本句是（简单句/并列句/复合句）2)主句是.3)从句是由引导的定语从句，其中先行词是，关系词在句中充当可以用关系词代替，在句中可以/不可以省略。

2. (Para2.line6) What it was to become was uncertain until between 4. 5 and3. 8 billion years ago when the dust settled into a solid globe.句形分析: 本句是（简单句/并列句/复合句）句子中含有从句。

What it was to become是从句; when the dust settled into a solid globe是从句, 先行词为[模仿要点] 句子结构：what＋主语从句＋is … until/till +时间名词＋定语从句【模仿1】他要给我什么礼物一直不知，直到昨天下午他来看我是我才知道。

_____________________________________________________________________【模仿2】没人知道我们将要进入什么样的大学，直到3年后我们从高中毕业以后才知道。

_____________________________________________________________________3. (Para 2Line 9)The earth became so violent that it was not clear whether the shape would last or not.句形分析: 本句含有句型结构属于状语从句。

其中that从句是句型。

句子中的为,真正的主语由引导的从句。

为了避免主语显得过长, 可以用it作为句子的主语, 把主语从句移到句子的末尾。

对比句型(Para3line19)It was not immediately obvious that water was to be fundamental to the development of life.水对于生命的发展起关键作用, 这一点在当时并不明显。

句形分析: 句子中的为,真正的主语由引导的从句。

为了避免主语显得过长, 可以用it作为句子的主语, 把主语从句移到句子的末尾。

对比句型(Para3 line25)…which made it possible for life to develop. 那使生命的生长发育成为一种可能。

句形分析此句中的made+宾语+宾语补足语的复合结构，其中it是，真正宾语是，提示：常用于此结构的动词还有1)认为，2)感觉，3)发现，4)考虑。

即学即练1) is hard to understand there is gravity.很难理解为什么会有地球引力。

2) is not clear gold was found there.那儿是怎么发现金子的还不清楚。

3)We ______ ______ ______ ______ (规定) to get up at 6 o’ clock every morning.4)I ______ ______ ______ (发现很难) to get along with him．3) He found impossible Germany for the USA. 4)我觉得我有责任帮助你。

他发现不可能离开德国去美国了。

4. (Para 2line10) They were to produce carbon, nitrogen, water vapor and other gases, which were to make the earth’s atmosphere.句形分析1)本句是（简单句/并列句/复合句）2)主句是.3)从句是由引导的定语从句，其中先行词是，关系词在句中充当不/可以用关系词代替，在句中可以/不可以省略。

句型对比They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish.句形分析1)本句是（简单句/并列句/复合句）2)从句是由引导的定语从句，其中先行词是，关系词在句中充当不/可以用关系词代替，在句中可以/不可以省略。

[模仿要点] 句子结构：which 引导一个定语从句对上句情况的进一步说明。

【模仿1】我们常常看到有人乱丢乱吐，这弄得我们的环境很脏_____________________________________________________________________即学即用:be to do sth1) They said goodbye, little knowing that they never again.他们彼此说了再见, 几乎不知道再也不可能见面(meet)了。

2) She this great work.她一定会因这部著作而获得荣誉(be honored for)。

3) Mr. Clark said to his daughter, “You ho me by 10 o’clock at the latest.”克拉克先生对他的女儿说: “你必须在10点之前到家。

”5. (Para.2line13)What is even more important is that as the earth cooled down, water began to appear on its surface.句形分析: 本句是（简单句/并列句/复合句）句子中含有从句。

What is even more important是从句; that as the earth cooled down, water began to appear on its surface是从句, 在这个表语从句中含有引导的状语从句，as意为“”[模仿要点] 句子结构：what引导的主语从句（系表结构）＋is +that引导的表语从句【as引导的时间状语从句（简单句），主句（简单句）】【模仿】更重要的是，随着学习变得愈来愈难，我们得全神贯注于学习。

6. (Para.3line21)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.句形分析: 本句是（简单句/并列句/复合句）句子中含有从句。

What many scientists believe 是从句; that the continued presence of water allowed the earth to dissolve harmful gases….是从句, 在这个表语从句中含有并列的个宾语和表语从句基本句型是into the oceans and seas是成分。

[模仿要点] 句子结构: 主语从句＋is ＋that表语从句【模仿】他缺席的原因是他在上学时被一辆小车撞伤了。

_____________________________________________________________________句型对比(Para.5line50)So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.句形分析: 本句是（简单句/并列句/复合句）句子中含有whether引导的从句。

whether life will continue on the earth是从句; whether this problem can be solved是从句充当宾语Using language ----Reading A visit to the moon重点句型解析1.(para.1line1)Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer.句型解析：adj./adv.+enough（后置）+to do sth./that-clause “足够…以至于”同义转化：Last month I was lucky I had a chance to make a trip into space.2. (para.2line1)Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful.句形分析: 本句是（简单句/并列句/复合句）句子中含有引导的从句在句中做动词的宾语。

从句中有并列两个宾语。

一个动词若带两个宾语从句, 第一个that一般第二个引导词that 一般。

[模仿要点] 句子结构: 动词＋宾语从句1＋并列词+ 宾语从句2【模仿】我知道, 你不仅学了中文, 而且还写中文诗3. (para2line3)I immediately and around in our spaceship cabin watching the earth become smaller and the moon larger.我立刻感到很高兴, 由于失重我在太空舱里飘来飘去, 我望着（身后的）地球越来越小, 而（前方的）月球越来越大。

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Book3 unit4 语法 主语从句

Book3 unit4 语法 主语从句


*it为形式主语
2.That they should like each other is natural. It is natural that they should like each other. _____________________________________
这样就构成了下面一些常用句型: 1) It is + n. +从句 It is a pity/shame that... 遗憾的是…… It is a surprise that…令人惊奇的是… It is a fact that… …是事实 It is common knowledge that… …是常识 It is a pity that *_______________(很遗憾)we lost the match.
It is a fact that *______________(这是事实)he cheated in the exam.
2) It is + adj. +从句 It’s certain that… 肯定… It is possible that... 很可能…… It is unlikely that... 不可能…… It is obvious that… 很明显… It is necessary \important \natural\... that… +(should) +do… It is possible that *_________________(很可能)she will come back tomorrow. It is obvious that *_________________(很明显)this measure is effective.
(New!)+Unit+4+Handout[1]

(New!)+Unit+4+Handout[1]

Unit 4 A Virtual LifeWords Study:1. virtual: 1) Existing in the mind, especially as a product of the imagination.虚拟的，内心的在头脑中存在的，尤指意想的产物。

e.g. Now, more and more people start to accept the concept of a virtual store.virtual life / community / office / reality 虚拟生活/ 社区/ 办公室/ 现实2) Existing / resulting in effect though not in actual fact / form/ name实质上的，实际上的(虽然没有实际的形式或名义，但在实际/效果上存在的) e.g. She is the virtual president, though her title is secretary.虽然她的头衔是秘书，她是实际上的董事长。

virtually (adv.) = actually = in fact2. interpret: 1) vt. understande.g. He interpreted the silence as contempt. 他把这沉默理解为轻蔑的表示.2) vt. give or provide the meaning of, explain 解释e.g. This dream can be interpreted in several different ways.Poetry helps to interpret life. 诗歌有助于阐释人生的意义。

3) vi. Translate what is said in one language into anothere.g. No one in the tour group spoke Spanish, so we had to ask the guide to interpret.I couldn't speak Italian so I asked Maria to interpret for me.interpret → misinterpret 误解3. tone: a particular quality or intonation of a sound 声调，音色，基调e.g. She spoke in an angry tone.Suddenly, he laughed again, but this time with a cold, sharp tone.The violin has a beautiful tone.Her friendly opening speech set the tone for the whole conference.她友好的开幕词确定了整个会议的基调。

Book 3 U4 要点句子必背(一) 打印

Book 3 U4 要点句子必背(一) 打印

Book 3 U4 要点句子必背（一）1.What we can't get seems better than what we already have. (主语从句)2.Jack made it clear that he would attend the meeting. (用it 作形式宾语)杰克表示得很清楚了，他会参加会议。

3.Whether you can succeed or not depends on how hard you work at it. (主语从句；宾语从句)4.Whatever happens, we will never use violence. (让步状语从句)5.Luckily, Lily was just in time for the train / to catch the train. (搭配句型)6.Too much drinking will do great harm to you.＝Too much drinking will do you great harm.饮酒过量危害甚大。

7.Asking your teachers for advice more often does no harm to you. (动名词短语作主语)经常征求老师的意见对你没有害处。

8.→There is no harm in asking your teachers for advice more often. (搭配句型)经常征求老师的意见没有坏处。

9.Do you know when this kind of robot came into existence? (动词短语)你知道这种机器人是什么时候问世的吗？10.There exists a beautiful lake surrounded by green grass and wild flowers in front of the village.村子前面有一个美丽的湖，湖的四周长满了绿草和野花。

【句型讲解】外研Book3模块4重点句型解读

【句型讲解】外研Book3模块4重点句型解读

【句型讲解】外研Book3 模块4重点句型解读1. 【课文原句】They are often so thick that you cannot see the sun , and the wind is sometimes strong enough to move sand dunes. （Reading and Vocabulary, p32）【解读】so+ adj. /adv. + that clause 句型引导结果状语从句，意思为：“如此……以至于”，如：We turned the radio up so that everyone heard the important news. 我们把收音机开高，每个人都听得见了。

The boy was so frightened that he didn’t know what to do. 这个男孩如此的害怕，他都不知道去做什么了。

【拓展】1)so放在句首时，这时句子要用倒装语序，以示强调，如：So much homework did we have to do that we had no time to take a rest.由于有那么多的工作不得不做，我们几乎没有时间休息。

2) so +that clause (如果包含can/may/might/should等情态动词)，往往主要用来引导目的状语从句，其意思为“以便，使能够”，如：He is working hard so that he may pass his examination. 他如此拼命地学习，是为了也许通过考试。

We turned the radio up so that everyone might hear the important news. 为了每个人都能听得见了，我们把收音机开高了。

3)so + adj. +a(n) +that clause 句型。

如：He is so good a man that we all love him. 他是那么一个好人，我们都很爱他。