1、英語主語從句Subject Clause主語從句主語從句英語主語從句Subject Clause英語主語從句主語從句三要素主語從句三要素主語從句定義主語從句定義Subject Clause英語主語從句主語從句三要素主語從句三要素主語從句定義主語從句定義Subject Clause英語主語從句Find out the Subject in the following sentences:1. A tree has fallen across the road.2. She is from China.3. To find your way can be a problem.4. Smoking

2、is bad for you.5. What she said is not true.6.Whenever you finish the task is certainly all right.名詞代詞不定式動名詞句子句子Subject ClauseConclusion: A clause (subordinate clause) which serves as subject of a sentence can be called Subject Clause.英語主語從句觀察以下句子，注意主語從句的特點：觀察以下句子，注意主語從句的特點： That the earth travels r

3、ound the sun is a well-known fact. Whether the artist can do it or not is uncertain. Why he did it remains a mystery. Whoever breaks the law will be punished.Subject Clause英語主語從句主語從句三要素主語從句三要素主語從句定義主語從句定義Subject Clause英語主語從句Subject Clause英語主語從句主語從句的引導詞主語從句的引導詞從屬連詞：that, whether連接代詞：who(ever), which(

4、ever), what(ever)連接副詞：where(ever), when(ever), why, howSubject Clause主語從句引導詞的選擇主要是根據從句的結構和意義來選擇：英語主語從句1.1.連接詞：連接詞：that; whetherthat; whether 如果從句的意義和結構完整，則選用that或whether。 -thatthat 本身沒有意義，不作句子成分，只表示從句的開始，位于句首時，that不能省略.-whetherwhether表示 “是否”，不作句子成分,位于句首。1） _people cut down too many tress destroyed t

5、he balance of nature._we will go camping tomorrow depends on the weather._the solid shape would last or not is not clear._you will win the medal seems unlikely.ThatWhetherWhetherThat英語主語從句2. 2. 連接代詞：連接代詞： who, which, what（什么，所的）,whose,whomWhoever / whichever / whatever在主語從句中不含有疑問意義。如果從句的意義和結構不完整不完整，

6、根據從句的意義和結構選擇相應的連接代詞。連接代詞在從句中起名詞性作用名詞性作用，擔當一定成分（主語、賓語、表語等）。Subject Clause1._will take part in the meeting has not been decided.2. _student will win first is uncertain.3. _I cant understand is why he has changed his mind.4. _fails to see this will make a mistake.5. _ was said here must be kept secret.

7、 Who Which What Whoever Whatever英語主語從句3. 3. 連接副詞：連接副詞：where(ever), when(ever), why, how連接副詞when, where, why, how在從句中作(時間、地點、原因、方式)狀語。1）_ we should leave it is a problem.2）_he will be back depends on the weather.3)_this happened is not clear to anyone.4) _these Greek statues are in a British museum i

8、s an important part of our story today.Subject Clause Where When HowWhy英語主語從句總結總結做題突破方法三部曲 一、首先分清主句和從句 二、分析從句缺何種成分 三、根據分析，選擇恰當的連接詞Subject Clauseeg._they would support us was a problemWhether 英語主語從句主語從句定義主語從句定義Subject Clause主語從句三要素主語從句三要素主語從句的考查難點主語從句的考查難點英語主語從句主語從句的考查難點主語從句的考查難點 主語從句有時為了使句子結構平衡，避免句子

9、“”頭重腳輕“”，常用itit作形式主語代替主語從句，放于句首，而把真正的主語（即主語從句）置于句末。主語從句后的謂語動詞一般用單數形式。 常用句型如下： （1）It + be + 名詞 + that從句 名詞有（no wander, an honor, a pity, a fact, a shame, good news, a surprise, etc ） 1. _(遺憾的是)that we lost the game.2. _(驚奇的是)that he cheated in the exam.3. _(事實是)that English is being accepted as an in

10、ternational language.4. _(不足為奇的是) that computers are taking over the world.It is no wonder It is a pityIt is a surpriseIt is a factSubject Clause英語主語從句（2）It + be + 形容詞 + that從句 形容詞有（obvious, true, natural, good, wonderful, funny, no surprising, possible, certain, likely, fortunate, doubtful, etc） 1.

11、 _ (有必要) that an efficient worker ( should) accomplish his work on time2. _(重要的是)that you (should) think before you say or do anything3. _ (很明顯)that this measure is effective.Subject ClauseIt is obvious It is necessary It is imporatant that常含有一個表示“有必要的”之類的形容詞。在這種結構中，從句應當“ + +that+ +主語主語+(+(should)+)+動詞原形動詞原形”