2020-2021学年英语人教版(2019)选择性必修第二册课件：Unit 2 Bridging Cultures 突破语法大冲关

Whether the sports meeting will be held is not certain now. 运动会是否将举行现在不能确定。 Whether the work can be completed on time is doubtful. ＝It is doubtful whether/if the work can be completed on time. 这项工作能否按时完成还不确定。
3．That is why today over 40% of Californians speak Spanish as a first or second language.
4．Her tutor explained that she was supposed to read lots of information to help form a wise opinion of her own.
学校通知每日早操前将开展“疯狂英语”活动。 It is necessary that people should learn to face the reality. 人们应该学会面对现实是有必要的。
[即学即练 1] 单句语法填空 ① It is certain that she will do well in her exam. ②How we understand things has a lot to do with what we feel. ③It is reported that a new film will be put on in the cinema.
一、名词性从句的连接词
引导名词性从句的连接词有三个连词、五个连接代词、四个连
接副词。
连接词
词形
词义
在从句中所作的成分
that
×
×
连词
if/whether
是否
×
who(ever) (Leabharlann Baidu论)谁(主格)
主语、表语、宾语
whom(ever) (无论)谁(宾格)
表语、宾语
whose(ever) (无论)谁的(所有格)
3．若主语部分结构较长，可以使用形式主语it，把真正的主语 从句放于后面。
It is announced that our school is going to start an activity of “Crazy English” before daily morning exercises.
Unit 2 BRIDGING CULTURES
突破语法大冲关
名词性从句 [观察例句] 1．What seemed strange before now appears quite normal to Xie Lei. 2．It's important that Xie Lei keeps a balance between her studies and her social life.
三、宾语从句 在主从复合句中作宾语的从句叫宾语从句。宾语从句在句中可 以作及物动词、介词或一些形容词的宾语。 Everyone knows that the earth is made up of matter. 每个人都知道地球是由物质构成的。 I doubt whether he will be elected as chairman. 我怀疑他是否会当选为主席。
定语
连接代词
主语、宾语、表语、定
what(ever)
(无论)什么
语
which(ever)
(无论)哪个
主语、宾语、定语
when(ever) (无论)什么时候
where(ever) (无论)在哪里 连接副词
how(ever) (无论)怎样，怎么
why
为什么
状语 状语 状语 状语
二、主语从句 主语从句是指在句中作主语的从句，位置与陈述句的主语相同。 What is not to our satisfaction is that the price of the meal is a little too high. 我们不满意的是饭菜的价格稍微有点高。 How the book will sell depends on its author. 这本书如何销售取决于作者本人。 Where we shall have the meeting makes no difference. 我们在哪儿开会都无所谓。
4．例句4为that引导的宾语从句。例句5中it为形式宾语，真正的 宾语为后面that引导的宾语从句。
5．例句6为that引导的同位语从句。 名词性从句是在句子中起名词作用的句子。名词性从句的功能 相当于名词词组，它在复合句中能担任主语、宾语、表语、同位语 等，因此根据它在句中不同的语法功能，名词性从句又可分别称为 主语从句、宾语从句、表语从句和同位语从句。
These two areas are similar in that they both have high rainfall in summer.
这两个地区相似，因为在夏天降水都很多。 I'm not certain whether the train will arrive on time. 我不确信火车是否将会按时到达。
5．He made it quite clear that he preferred to study English. 6．The fact that she seemed to develop normally was very encouraging.
[归纳用法] 1．以上所有例句皆为主从复合句，句中用了相当于名词作用的 从句(即名词性从句)在句中充当成分。 2．例句1为what引导的主语从句。例句2中it为形式主语，真正 的主语为后面that引导的主语从句。 3．例句3为why引导的表语从句。
1．that引导主语从句，在从句中不充当任何成分，仅起连接作 用，但不可省略。
That you will win the medal seems unlikely. 你想获得奖牌看起来是不可能的。 2．whether引导的主语从句既可放在句首也可放在句尾，但if引 导的主语从句只能放在句尾，前面需要用it作形式主语。