1、Subject Clause,主語(yǔ)從句,Subject Clause,內(nèi)容,主語(yǔ)從句三要素,主語(yǔ)從句定義,Subject Clause,內(nèi)容,主語(yǔ)從句三要素,主語(yǔ)從句定義,Subject Clause,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 is bad for you.,5. What she said is not t

2、rue.,6.Whenever you finish the task is certainly all right.,名詞,代詞,不定式,動(dòng)名詞,句子,句子,Subject Clause,Conclusion: A clause (subordinate clause) which serves as subject of a sentence can be called Subject Clause.,觀察以下句子，注意主語(yǔ)從句的特點(diǎn)：,That the earth travels round the sun is a well-known fact. Whether the artist

3、 can do it or not is uncertain. Why he did it remains a mystery. Whoever breaks the law will be punished.,Subject Clause,內(nèi)容,主語(yǔ)從句三要素,主語(yǔ)從句定義,Subject Clause,Subject Clause,主語(yǔ)從句的引導(dǎo)詞,從屬連詞：that, whether 連接代詞：who(ever), which(ever), what(ever) 連接副詞：where(ever), when(ever), why, how,Subject Clause,主語(yǔ)從句引導(dǎo)詞的選

4、擇主要是根據(jù)從句的結(jié)構(gòu)和意義來(lái)選擇：,1.連接詞：that; whether,如果從句的意義和結(jié)構(gòu)完整，則選用that或whether。 -that 本身沒(méi)有意義，不作句子成分，只表示從句的開(kāi)始，位于句首時(shí)，that不能省略. -whether表示 “是否”，不作句子成分,位于句首。,1） _people cut down too many tress destroyed the balance of nature. _we will go camping tomorrow depends on the weather. _the solid shape would last or not i

5、s not clear. _you will win the medal seems unlikely.,That,Whether,Whether,That,2. 連接代詞： who, which, what（什么，所的）,whose,whom Whoever / whichever / whatever在主語(yǔ)從句中不含有疑問(wèn)意義。 如果從句的意義和結(jié)構(gòu)不完整，根據(jù)從句的意義和結(jié)構(gòu)選擇相應(yīng)的連接代詞。 連接代詞在從句中起名詞性作用，擔(dān)當(dāng)一定成分（主語(yǔ)、賓語(yǔ)、表語(yǔ)等）。,Subject Clause,1._will take part in the meeting has not been de

6、cided. 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. _wassaidheremustbekeptsecret.,Who,Which,What,Whoever,Whatever,3. 連接副詞：where(ever), when(ever), why, how 連接副詞when, where, why, how在從句中作(時(shí)間、地點(diǎn)、原因、方式)狀語(yǔ)。 1

7、）_ 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 is an important part of our story today.,Subject Clause,Where,When,How,Why,總結(jié),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(jù)分析，選擇恰當(dāng)?shù)倪B接詞,Sub

8、ject Clause,eg._they would support us was a problem,Whether,內(nèi)容,主語(yǔ)從句定義,Subject Clause,主語(yǔ)從句三要素,主語(yǔ)從句的考查難點(diǎn),主語(yǔ)從句的考查難點(diǎn),主語(yǔ)從句有時(shí)為了使句子結(jié)構(gòu)平衡，避免句子“”頭重腳輕“”，常用it作形式主語(yǔ)代替主語(yǔ)從句，放于句首，而把真正的主語(yǔ)（即主語(yǔ)從句）置于句末。主語(yǔ)從句后的謂語(yǔ)動(dòng)詞一般用單數(shù)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 sur

9、prise, 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(shí)是)that English is being accepted as an international language. 4. _(不足為奇的是) that computers are taking over the world.,It is no wonder,It is a pity,It is a surprise,It is a fact,Subject Clause,（2）It + be + 形容詞

10、 + that從句 形容詞有（obvious, true, natural, good, wonderful, funny, no surprising, possible, certain, likely, fortunate, doubtful, etc） 1. _ (有必要) that an efficient worker ( should) accomplish his work on time 2. _(重要的是)that you (should) think before you say or do anything 3. _ (很明顯)that this measure is effective.,Subject Clause,It is obvious,It is necessary,It is imporatant that,常含