内容正文:
Unit 5导学案
语法
一、主语从句
Ⅰ. 主语的构成
1. Jane works hard. (名词)
2. You are a student. (代词)
3. The old should be respected. (名词化的动词)
4. Smoking is bad for you. (动名词)
5. To find your way can be a problem. (不定式)
6. That we shall be late is certain. (句子)
Ⅱ. 主语从句的定义
· 在主从复合句中,充当主语的从句是主语从句。它是名词性从句之一,使用陈述句语序。
Ⅲ. 考点梳理
1. 从属连词: that(无实意,但不可省略)、whether(可在句首,可接or not、不定式) 、 if(不可用于句首)
2. 连接代词: who、whoever、whom、whose、what、whatever、which、whichever. 在句中不仅起连接词的作用,并充当句中的名词性成分如主语、宾语、表语。
3. 连接副词:when、where、how、why. 引导名词性从句时不仅起连接词的作用,也在句中作状语。
4. It作形式主语(为保持句子平衡,常把主语从句后置,而用形式主语it代替,it作形式)
1 It +系动词+形容词+主语从句 形容词:important, (un)likely, possible, necessary, natural, wrong等
2 It+系动词+名词+主语从句 名词:fact, idea, honour, question, pity等
3 It+系动词+过去分词+主语从句 过去分词: known, proved, said, decided, suggested, thought等
4 It+不及物动词+主语从句 不及物动词: appear, happen, seem, occur, matter等
5 注意事项:
(1)在“It + 系动词 + 形容词 + 主语从句”句型中,如果形容词为 necessary,
important , strange , natural等时,从句谓语动词常用“(should)+动词原形”。
(2) 在“It + 系动词 + 过去分词 + 主语从句”句型中,如果过去分词为
insist, (一坚持) ;
order,command(二命令);
suggest , advise, recommend(三建议);
request, require, demand, ask(四要求) 时,
从句谓语动词使用“(should)+动词原形”。
5. 有主语从句的句子中主句的主谓一致
① Whether the patient will be taken unknown. (多数情况下用单数/复数)
② When and where the patient will be taken _____ unknown. (两个连接词引导一个主从用单数/复数)
③ When the task can be finished and whether he can have a rest ________ unknown. (主语为and连接的两个主从时用单数/复数)
④ What he wants most ____ staying with his family.(what在主从中做宾语时单复数由主语/表语决定)
What they need _______ masks(口罩).
2、 基础练习(用恰当引导词填空)
1. It is likely _____ he is the winner of this game.
很可能他是这场游戏的胜利者。
2. ______ she bought so many dictionaries is not clear.
= It is not clear _____ she bought so many dictionaries.
不清楚她为什么买这么多字典。
3. ________ he was admitted into Beijing University made his teachers and parents happy.
他考上了北大,这让他的老师和父母很高兴。
4. It’s a pity________ you can’t attend my birthday party.
很可惜你不能参加我的生日聚会。
5. _________ we will build a new high school hasn’t been decided.
我们是否要建新高中还没决定呢。
6. ______