1．从属连词引导的名词性从句
名词性从句的从属连词在从句中只起连接作用，不作成分，主要包括that, whether/if。 ①(2018·全国卷Ⅰ书面表达)What I want to stress is that you'd better bring some gifts. 我想强调的是你最好带一些礼物。
②(2017·全国卷Ⅰ书面表达)Would you tell me if/whether it's convenient for you？你能告诉我你是否方便吗？
2．连接代词引导的名词性从句
名词性从句的连接代词在从句中起连接作用，并在从句中充当主语、表语、宾语、同位语，主要包括what, which, who, whom, whose, whatever, whoever, whomever, whichever等。
(2017·全国卷Ⅰ书面表达)To start with, what I intend to stress is that we are about to start our next lesson in Classroom 8 of the Teaching Building at 10：00 a．m.next Friday.
首先，我想强调的是下周五上午十点钟我们将在教学楼的8号教室开始我们的下节课。 3．连接副词引导的名词性从句
名词性从句的连接副词在从句中起连接作用，并在从句中充当状语，主要包括how, when, why, where, however, whenever, wherever等。
①(2018·全国卷Ⅰ书面表达)When you are enjoying the meal, you need to avoid making noises while chewing food，which is where you should pay attention.
当你享受这顿饭的时候，你需要避免咀嚼食物时发出声音，这是你应该注意的地方。 ②(2018·北京高考书面表达)Then I showed them how to make tea.然后我展示给他们怎样泡茶。
(二)名词性从句的写法
在写作中，如果能够把两个简单句合并为一个含有名词性从句的复合句，或者把一个简单句扩展成为含有名词性从句的复合句，对写作都是一种质的升华。
名词性从句在写作时可采用“三步法”：
[示例]
第一步：写出两个简单句。 ①He said a lot at the meeting. ②His words were very attractive.
第二步：用句①作主语从句，可转换为“他在会上所说的话”，即What he said at the meeting。
第三步：把句①转换的主语从句和句②连在一起。 What he said at the meeting was very attractive.
[应用体验] 用名词性从句将下列每组简单句合并为一个复合句 ①Shall we go picnicking tomorrow? It depends on the weather.
→Whether_we_shall_go_picnicking_tomorrow_depends_on_the_weather. ②This is my decision.All of us are to start at 7：00 o'clock tomorrow morning. →My_decision_is_that_all_of_us_are_to_start_at_7：00_o'clock_tomorrow_morning. ③When did you enter the room？The police wants to know it. →The_police_wants_to_know_when_you_entered_the_room.
④Our school volleyball team had won the championship.The news encouraged us all greatly. →
The_news_that_our_school_volleyball_team_had_won_the_championship_encouraged_us_all_greatly. ⑤Finally I want to express my hope.All the younger fellows can make full use of time. →
Finally_I_want_to_express_my_hope_that_all_the_younger_fellows_can_make_full_use_of_time.
[专题过关训练]
用名词性从句补全句子
1．(2018·全国卷Ⅰ书面表达)相信这是一个你不容错过的好机会。 It_is_believed_that_it_is_an_excellent_opportunity that you mustn't miss.
2．(2018·全国卷Ⅱ书面表达)然后消息传来我们学校将放映一部英文短片，它是一部关于我们学校历史的纪录片。
Then came the_news_that_an_English_short_film_will_be_shown_in_our_school,_which is a documentary on the history of our school.
3．(2018·北京高考书面表达)这就是为什么我建议你申请北京大学，中国最好的大学之一。
That_is_why_I_suggest_you_apply_for Peking University, one of the best universities in China.
4．(2017·北京高考书面表达)我确实希望我的建议能对你有些帮助，也希望你在中国玩得快乐。
I_do_hope_that_my_advice_will_be_of_some_help_to_you and that you'll have a good time in China.
5．(2017·全国卷Ⅱ书面表达)我想告诉你的是，中国剪纸艺术展将于下周举办。
What_I_want_to_tell_you_is_that the Chinese paper-cutting art exhibition will be held next week.
6．(2016·全国卷Ⅰ书面表达)然而，我不确定措辞和格式是否正确。 However, I am not sure about whether_the_words_and_format_are_correct. 7．(2015·全国卷Ⅰ书面表达)你要记住的最后一件重要的事情是在6月28日前把这篇文章发给我。
The
last
important
thing
you
should
remember
is
that_you_have_to_send_the_article_to_me_before_June_28th. 8．根据以上情况我们可以得出结论：健康的身体有助于提高我们的生活质量。 From the above we_can_draw_a_conclusion_that_a_healthy_body_helps_to_improve the quality of our life.
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