1、Unit 4 Astronomy the science of the starsLanguage Points 1.make it+adj/n.+for sb to do【课本原句】This produced a chain reaction,which made it possible for life to develop.这就形成一个连锁反应，使生命发展成为可能。这就形成一个连锁反应，使生命发展成为可能。【用法解析】此句中的此句中的it 作形式宾语，真正的宾语是其后的不定作形式宾语，真正的宾语是其后的不定式式to develop,it做形式宾语还可以代替动名词或从句。做形式宾语还可以代
2、替动名词或从句。e.g.(1)He made it clear that the meeting would be put off.(2)He made it a rule to get up at six every morning.经典句式经典句式用法归纳用法归纳(1)make+it+adj./n.+that从句从句(2)make+it+adj./n.+to do sth(3)make+it+no good/no use/no value+doing sth 注意事项：常用语这种句型的动词还有：注意事项：常用语这种句型的动词还有：think,consider,find,feel 等等(1)
3、She made it clear to me _ she wished to make a new life for herself.(2)He makes it a rule _(keep)his room neat and tidy.(3)He is stubborn,which makes it no use _(quarrel)with him about it.即学即练即学即练 thatto keepquarreling2.What it was to become was uncertain until between 4.5 and 3.8 billion years ago
4、when the dust settled into a solid globe.随后它会变成什么没人能知道，直到随后它会变成什么没人能知道，直到38-45亿年前，亿年前，这团尘埃才慢慢地形成一个固体的球状物。这团尘埃才慢慢地形成一个固体的球状物。分析：what引导一个 ，并且what在从句中作become的 。(1)（使大家吃惊的是）is that he didnt come to the meeting.(2)_（他所做的）added to our difficulty.主语从句主语从句表语表语What made everyone surprisedWhat he had done3.It
5、 was not immediately obvious that water was to be fundamental to the development of life.分析：it 作 ，真正的主语是真正的主语是 仿写(1)令人惊讶的是恐龙的消失仍然是个迷。令人惊讶的是恐龙的消失仍然是个迷。（2）难以置信地是他居然理解了这个理论。难以置信地是他居然理解了这个理论。It is unbelievable/incredible that he has understood this theory.It is surprising/amazing that the disappearance
6、of dinosaurs/how the dinosaur disappeared remains a mystery/puzzle.形式主语形式主语water was to be fundamental to the development of life.4.倍数表达法倍数表达法【课本原句】【课本原句】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，我发觉我被送出很远，步子的跨度竟是而当我试着向前迈步时，我发觉我被送出很远
7、，步子的跨度竟是在地球上的两倍，因而我摔倒了。在地球上的两倍，因而我摔倒了。e.g.亚洲是欧洲的四倍大(比欧洲大三倍)。Asia is four times as large as Europe.Asia is three times larger than Europe.The size of Asia is four times that of Europe.Asia is four times the size of Europe.【用法归纳】【用法归纳】倍数的表达方法倍数的表达方法：(1)“A倍数倍数as形容词或副词的原级（形容词或副词的原级（+n.）asB”，表示，表示“A是是B的多
8、少倍的多少倍”。(2)“A倍数形容词或副词的比较级倍数形容词或副词的比较级thanB”，表示表示“A比比B大大(长、高、宽等长、高、宽等)多少倍多少倍”。(3)“A倍数倍数the size/height/length/width,etc.ofB”，表示，表示“A是是B的多少倍的多少倍”。(1)There are _ in our library as in yours.我们图书馆的书是你们图书馆里书的五倍。我们图书馆的书是你们图书馆里书的五倍。(2)据我所知，这个城市是那个城市的三倍大。（一句多译据我所知，这个城市是那个城市的三倍大。（一句多译）As far as I know,the cit
9、y is three times _ that one.As far as I know,the city is twice _ that one.As far as I know,the city is three times _ that one.即学即练即学即练 five times as many books as large aslarger thanthe size ofI.根据提示，完成句子。根据提示，完成句子。(1)Eating too much sugar is _(harm)to our teeth.(2)The ship rocked _(violent)from sid
10、e to side,causing many passengers to feel seasick.(3)Scientists want to know whether life _(exist)on other planets.(4)Would you please tell me how to p_ this kind of thing _ happening?(5)He cooked the meal _(轮到他)this week.(6)_(不像)his brother,he _(不喜欢)playing football.训练案训练案Exercise(7)Will you come b
11、ack home _ _(及时）to see the children before they go to bed?(8)Many mothers-to-be(准妈妈）will g_ _ _ babies this year.(9)As far as I am concerned,there are four_(fundament)factors for success.(10)What he said was quite _ _ _ _ _(与他做的不一样).II.选词填空选词填空1.Mr Brown had intended to catch the early train,but he
12、didnt get up _.2.Do remember to _ cars while crossing the street.3.At last,the firefighters put out the fire in the supermarket,which _ at ten this morning.4.When the professor turned up,all the students _.5.Class Three should be responsible for raising the red flag this week _.6._ you have grown up
13、,you should not rely on your parents.训练案训练案Exercisecheer up,now that,break out,in time,in ones turn,watch out forIII.完成句子完成句子(一空一词一空一词)1.A fire _ _ in the neighborhood last night.昨晚居民区里发生了火灾。2.No matter where he is,he makes _ a rule _ _ for a walk before breakfast.无论他在哪里，他都让早饭前散步成为了习惯。3.The hall is
14、_ _ _ than our classroom.这个大厅比我们教室大五倍。训练案训练案ExerciseII.完成句子完成句子(一空一词一空一词)4.His arrival _ our plans _ _ carried out.他的到来阻止了我们计划的实施。5.It was such a frightening snake that no one dared _ _ _ it.这条蛇是如此吓人以致于无人敢接近它。6.We are sure that Joseph will finish the work _ _.我们确信约瑟夫会及时完成这项工作。训练案训练案ExerciseHomework1.整理今天的句型笔记，并熟背金版学案整理今天的句型笔记，并熟背金版学案P42的经典句式；的经典句式；2.完成课件完成课件P9-13的练习和金版学案的练习和金版学案P51-52。3.完成单元质量评估（四）的试题，自行核完成单元质量评估（四）的试题，自行核对答案用红笔更正，并把相关的错题、词对答案用红笔更正，并把相关的错题、词汇和句型整理到笔记本上。汇和句型整理到笔记本上。4.复习前面三个单元的词汇语法和句型。复习前面三个单元的词汇语法和句型。
