Unit4学案3主语从句.doc

高一英语高效课堂“读练品拓”探索学习学案 学习时间 学案编号 3 学习内容 Unit 4 Grammar----the Subject Clause（Book） Studying aims 1. Knowledge aims. To help students learn the subject clause. 2. Ability aims. To enable students to master the useful structure of a sentence. 3. Emotional aims. To enable students to understand the text in English better .. Study procedures Step1读书探索新知 一、主语从句如果一个句子在复合句中充当一个主语,那么这个句子就是主语从句. 常规主语从句，即句子在复合句中充当一个主语 1)That he finished writing the composition in such a short time surprised us all. (2)Whether we will go for an outing tomorrow remains unknown. (3)Who will be our monitor hasnt been decided yet. (4)Whom we must study for is a question of great importance. (5)What caused the accident remains unknown. (6)Whatever you did is right. (7)Whose watch was lost is unknown. (8)What we need is time. (9)What we need are good doctors. 小结:1)引导主语从句连词有that,whether,who,what,whatever等 （2)连词位于句首不能省略 （3)主语从句大多数情况下视为单三,但如例9 2、为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末 1)It is true that he has made a very important discovery in chemistry. (2)It is very likely that they will hold a meeting. (3)It is important that we all should attend the meeting. (4)It is strange that the man should have stuck to his silly ideas. (5)It is a pity that we wont be able to go to the south to spend our summer vacation. (6)It is still a mystery what caused the accident. (7)It is said that he has gone to shanghai.(=He is said to have gone to shanghai) (8)It is known to all that the gun powder was first invented by the Chinese. (9)It is suggested that the work should be done with great care. (10)It seems that he has seen the film.(=He seems to have seen the film) (11)It happened that the two cheats were there. (=The two cheats happened to be there) 小结:1)以that 引出的主语从句,常以形式主语it引导，其结构为：It is +形容词/名词/某些动词ed + that 从句. 2)在有些that从句中要用虚拟语气 (should+do/should+have done)例句, 4,9. Step2课堂品研新知 二、学习主语从句应该注意的几个问题 　　1、引导词that与what 　　 what既有引导主语从句的作用，同时又在从句中作句子成分(主语、宾语、表语等)，相当于all that / everything that...,常译成所……的(东西、事情、话等.