【語法——狀語從句】，學(xué)習(xí)英語的話英語可是很重要的哦，大家趕緊；來5068頻道看看淺陌帶給大家的語法總結(jié)吧。
狀語從句是句子的狀語由一個從句充當(dāng)，來修飾主句中的動詞，形容詞或副詞等。狀語從句都由從屬連詞引導(dǎo)，與主句連接，放在句末時，一般不在前面加逗號。
狀語從句根據(jù)它表示的意思可分為時間，原因，條件，比較，結(jié)果，目的等類。下面我們揀重點的一個一個來分析。
時間狀語從句：是由when, as, while, after, before, since, until, as soon as 等從屬連詞引導(dǎo)的狀語從句。時間狀語從句中的謂語動詞不能用一般將來時，只能用一般現(xiàn)在時表示將來發(fā)生的動作或存在的狀態(tài)。 如:I will call you as soon as I arrive there.
原因狀語從句： because, since, as和for都表示原因。常常令我們不知該用哪個好。我們來比較一下。because語勢最強，回答why提出的問題，用來說明人所不知的原因。當(dāng)能夠很明顯的看出原因或人們已知原因，就用as或since。如：I don't like that coat,because the color looks terrible. 由because引導(dǎo)的從句如果放在句末，且前面有逗號，則可以用for來代替。但如果不是說明直接原因，而是多種情況加以推斷，就只能用for。如：He is not here, because / for his mother is ill.
目的狀語從句：表示目的狀語的從句可以由in order that, so that,等詞引導(dǎo)。如：You must raise your voice so that/in order that everybody can hear you clearly.
結(jié)果狀語從句：結(jié)果狀語從句常由so...that 或 such...that引導(dǎo)，要掌握和區(qū)分這兩個句型，首先要了解so和such后面分別跟什么詞。such是形容詞，修飾名詞或名詞詞組，so是副詞,只能修飾形容詞或副詞。so 還可與表示數(shù)量的形容詞many, few, much, little連用，形成固定搭配。如：The box is so heavy that I can't carry it.
讓步狀語從句：是由though, although 引導(dǎo)的狀語從句。though, although 和 but不能同時使用。
Although it rained, they had a good time.
練習(xí)：
1. She will find him a kind man when she _________him.
A. knows
B. know
C. will know
D. is going to know
2. We'll go out for a walk as soon as it ________.
A. stops raining
B. raining
C. stop to rain
D. rain
3. The film was _____ interesting _____ everyone wanted to see it again.
A. too, to
B. so, that
C. not ,until
D. very, that
4. We don't understand the passage ______ there is few words in it.
A. and
B. if
C. though
D. because
5. You are sure to pass the exam _______ you study hard.
A. if
B. though
C. that
D. when
6. If you _____ free tomorrow, we won't go for a picnic.
A. aren't
B. won't be
C. weren't
D. don't
7. What was Jim doing _______ the teacher came in?
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