2014年春季高一英语人教版必修三同步课件：Unit 4 Astronomythe science of the sta

Section Ⅱ—Learning about Language

一、请找出下列句子的主语,并归纳什么可以作句子的主语1.We see him every day in our everyday life. 2.To see is to believe. 3.Raising pigs is her job. 4.What he wants is some milk. 5.It is important to learn English. 6.The news is exciting. 7.It is necessary that we go to help him. 8.With the help of Xiao Wang,they finished the work on time. 归纳:可以充当句子主语的有: 答案:1.We 2.To see 3.Raising pigs 4.What he wants 8.they 5.to learn English 6.The news 7.that we go to help him

归纳:代词、动词不定式、动名词(短语)、句子和名词

二、读下列英语谚语,找出其中含有主语从句的句子1.What is learned in the cradle is carried to the grave. 儿时所学,终生难忘。 2.A bad beginning makes a bad ending. 不善始者不善终。 3.Children are what the mothers are. 耳濡目染,身教言传。 4.What’s done cannot be undone. 生米煮成熟饭。 5.What’s lost is lost. 失者不可复得。 6.Money spent on the brain is never spent in vain. 智力投资绝不会白花。 答案:1,4,5

三、欣赏下列幽默故事,画出其中的主语从句A:What you need now is a doctor.You must see a doctor before dark. B:Well,whether he is coming or not is a problem. A:Why do you think so? B:“An apple a day keeps a doctor away.” And I’ve eaten 13 apples today. A:Really?But it is said that Doctor Smith is not afraid of apples,which he likes very much.So,don’t worry about whether he is coming. 答案: A:What you need now is a doctor.You must see a doctor before dark. B:Well,whether he is coming or not is a problem. A:Why do you think so? B:“An apple a day keeps a doctor away.” And I’ve eaten 13 apples today. A:Really?But it is said that Doctor Smith is not afraid of apples,which he likes very much.So,don’t worry about whether he is coming.

1.As a result of this event,a great dust cloud formed in the sky blocking out the sunlight. 正因为这一事件,天空中形成了一团巨大的尘云,挡住了阳光。 剖析:现在分词短语 blocking out the sunlight 在句子中作结果状语。 They worked day and night,finishing the work ahead of time. 他们日夜工作,结果提前完成了工作。 考点词组 block out 的含义是“挡住,遮住(光线和声音);忘掉,抹去(不愉快的 事)”。如: The volcanic ash blocked out the sun. 火山灰挡住了太阳。 An ugly building blocked out the view from the window. 一座难看的大楼把窗外的景物遮住了。 I try to block out the unpleasant experience. 我尽力去忘记那段不愉快的经历。

block off 封锁,封闭 Various barricades block off all the main streets of the city. 各种路障封锁住了城里所有的主要道路。 block up 阻塞,塞住,封住(孔,洞) The traffic is very heavy and has begun to block up the streets. 交通量很大,已经开始把街道阻塞了。 My nose is blocked up with the cold. 由于感冒,我的鼻子不通

气。 block one’s way 挡住某人的路 We found that a big elephant blocked our way. 我们发现一头大象挡住了去路。

单项填空 1)More highways have been built in China, travel from one place to another. A.making B.made C.to make D.having made 2)Black clouds had completely A.blocked off C.blocked down B.broken out D.broken off the sun. it much easier for people to

用 block out,block up,block one’s way,block off 填空 3)You can’t leave the village.All the streets are 4)A piece of rock has fallen and 5)Over the years she had tried to 6)This pipe(管子) is 答案:1)A 5)block out 2)A 6)blocked up . .We had to stop. that part of her life. .There is a piece of wood in it.

3)blocked off 4)blocked our way

2.Grammar:主语从句 考点一英语中的主语从句(the subject clause)在句中作主语,有以下两种结 构: 1)主语从句位于句首。如: What he wanted to see was an end to all the wars of the world. 他想要看到的是世界上所有战争的结束。 2)主语从句位于句尾,使用先行词 it 作形式主语。如: It was right that the temple was rebuilt. 庙被改建了,这很好。

在下列情况下,一般使用形式主语 it,而将真正的主语从句放在后面: ①谓语部分含有 seem,appear,be (im)possible,be a pity,be a wonder,be likely 等。如: It appeared to scientists on the earth that the stars had moved. 在地球上的科学家看来,这些星球已经移动了。 It’s a wonder that you recognized me. 你能认出我来,真是奇怪。 ②在 It is known...;It is said...;It is hoped...;It is believed...等惯用的被动结构 中。如: It is believed that before writing was developed,people in China used to keep records by putting a number of stones together. 人们认为在文字发明之前,中国人靠把许多石头聚集在一起来作记录。 需要注意的是:当主语从句放在句尾而用形式主语时,形式主语只能用 it,而 不能使用 this,that 等代词。

考点二主语从句的连接词可以分为以下三类: 1)that,whether(if) 连接词 that 本身没有意义,不作句子成分,只表示从句的开始,位于句首 时,that 不能省略;whether(if)含有“是否”的意思,whether 可以加上“or not”,其 语意不变。whether 和 if 也有不同的用法,如果主语从句位于句首则必须用 连接词 whether,不用 if。如: Whether we’ll go camping tomorrow depends on the weather. 明天我们是否去野营取决于天气情况。

2)what,who,which,whose,when,where,why,how 这一类连接词,除了可以引导主语从句之外,在从句中又分别起代词、副词 或形容词的作用,在从句中分别作主语、宾语、表语、状语和定语等。 what,who,which,whose 等又称为连接代词;when,where,why,how 等又称为连 接副词。试比较: Who will do it doesn’t matter.(连接代词 who 在从句中作主语) 谁要做这件事没关系。 W …… 此处隐藏：2984字，全部文档内容请下载后查看。喜欢就下载吧 ……