A. 求英語語法虛擬語氣例句
與襲..事實相反
If從句
主句
過去
Had
done
Would*
have
done
現在
Were/did
Would*
do
將來
Should
do/were/were
to
do
Would*
do
例句：If
there
hadn』t
been
much
rain
in
spring,
we
would
have
had
a
good
harvest
now.
[過去]
If
he
smoked
less,
his
cough
might
be
well
soon.
[現在]
If
the
lecturer
should
be
late,
you
would
have
to
make
a
speech
first.
[將來]
B. 英語語法及例句
語言要遵循一定的規則，這種規則即被我們稱之為「語法」。許多學生在英語學習中一聽「語法」頭就大，產生恐懼、厭學的心理。教師要遵循「精講多練，講練結合，以練為主」的教學方法，同時還要注意提高學習效率，減輕學生的作業負擔，實現語言為交流工具的目的。筆者在多年的教學實踐中總結：語法教學要重視例句的選擇。
一、代表性
例句的選擇在結構上要有代表性，起到掌握這個句型就能夠舉一反三的作用。歷年的高考試題、學生比較熟悉的經典習題等，我們不妨拿來一試。
如，講動詞不定式的主動式和被動式：
She went to the ball not only to see,but also to be seen.(她去參加舞會不僅為了見見世面。也為了出出風頭。）
如with復合結構，即with+賓語+賓語補足語：
With two exams to worry about,I have to work really hard this weekend.(2004,北京）
關於情態動詞must have done 表對過去情況肯定的猜測：
I have lost one of my gloves. I must have dropped it somewhere. (2005,北京）
二、簡潔性
有些教師認為，例句越難越好，難的會了容易的就更會了；還有教師因為學生上課不好好聽課，主張選難懂的句子來鎮鎮他們。其實不然。正如人的認知規律「由易到難」，對於語法學習有困難的學生而言，復雜的例句只會讓他們更頭痛，對語法更畏懼，對英語學習更沒興趣。選擇結構簡潔的例句，語言上通俗易懂，讀來朗朗上口，學生容易記，也記得牢。
如講動詞不定式的語法功能時:
1.
He is always the first to come and the last to leave.(to do 不定式作定語，修飾序數詞)
2.
To see is to believe.(to do 不定式坐主語和表語)
對比學習Seeing is believing.(動名詞作主語和表語)
3.
It is easier to say something than to do something. (to do 不定式作句子的真正主語，It為形式主語)
對比學習It is easier said than done.
三、趣味性
興趣是產生學習激情的巨大動力。選擇內容生動有趣的例句，如諺語、成語、俚語等，這樣學生有了興趣，就願意多念，念熟了就能由次及彼。
如： 倒裝結構「so+助動詞+主語+謂語+------」：
As a man lives,so shall he dies.(有生就有死)
As a man sows, so shall he reap.(種瓜得瓜。種豆得豆)
下邊還有一個比較級的句子：
The old man was not any more fond of being read to than the old woman.
此句的翻譯為「那個老頭和老太太一樣，都喜歡別人讀書給他們聽」。有學生將它譯為「那個老頭不喜歡別人給他念書，就喜歡哪個老太太」，這就要鬧笑話了。
四、積極性
選擇一些內容積極向上的語法例句，如名言警句等。這不僅能讓學生掌握相應的語法知識，同時也起到教育的情感目的，起到教育人的作用。
One half of knowing what you want is knowing what you must give up before you get it.
知道想要什麼，一半在於知道得到它之前必須放棄什麼。 （表語從句）
Victory will not come to me unless I go to it. 勝利是不會向我走來的，我必須自己走向勝利。 （條件狀語從句）
All that litters is not gold. 閃光的並非都是金子。 （定語從句）
五、綜合性
在實際的語法教學中，很少有獨立的語法項目，很多時候許多的語法知識匯集在一個句中。選擇綜合性較強的例句來講解，讓學生背誦，能起到事半功倍的效果。如：
It was playing computer games that cost the boy much time he ought to have spent in doing his lessons.
這個例句綜合了：
強調句型：It was---that---
定語從句：---time (that) he ought to have---lessons
情態動詞：ought to have spent---
動名詞作主語：---playing computer games cost the boy much more time---
總之，適當的例句選擇不僅能夠讓學生理解語法，掌握重點，還能在茫茫題海中減輕學生大量背誦和大量習題的課業負擔，有效提高教學質量。教師要注意多研究，多積累，找出更多的語法教學方法。
C. 一些常用的英語單詞，語法，句子，越多越好
組成句子的各個部分叫句子成分。英語句子成分有主語，謂語，表語，賓語，賓語補足語，定語，狀語等。 順序一般是主語，謂語，賓語，賓語補足語，而表語，定語，狀語的位置要根據情況而定。 1、主語 主語表示句子主要說明的人或事物，一般由名詞，代詞，數詞，不定式等充當。 Helikeswatch'ingTV.他喜歡看電視。 2、謂語 謂語說明主語的動作，狀態或特徵。 一般可分為兩類： 1)，簡單謂語 由動詞(或短語動詞)構成。 可以有不同的時態，語態和語氣。 Westud'yforthepeo'ple.我們為人民學習。 2)，復合謂語：情態動詞＋不定式 Icanspeakalit'tleEng'lish.我可以說一點英語。 3、表語 表語是謂語的一部分，它位於系動詞如be之後，說明主語身份，特徵，屬性或狀態。一般由名詞，代詞，形容詞，副詞，不定式，介詞短語等充當。 Mysis'terisanurse.我姐姐是護士。 4、賓語 賓語表示動作行為的對象，跟在及物動詞之後，能作賓語的有名詞，代詞，數詞，動詞不定式等。 WelikeEng'lish.我們喜歡英語。 有些及物動詞可以帶兩個賓語，往往一個指人，一個指物，指人的叫間接賓語，指物的叫直接賓語。 Hegavemesom'eink.他給了我一點墨水。 有些及物動詞的賓語後面還需要有一個補足語，意思才完整，賓語和它的補足語構成復合賓語。如： Wemakehimourmon'itor.我們選他當班長。 5、定語 在句中修飾名詞或代詞的成分叫定語。 用作定語的主要是形容詞，代詞，數詞，名詞，副詞，動詞不定式，介詞短語等。形容詞，代詞，數詞，名詞等作定語時，通常放在被修飾的詞前面。 Heisanewstu'dent.他是個新生。 但副詞，動詞不定式，介詞短語等作定語時，則放在被修飾的詞之後。 Thebikeintheroomismine.房間里的自行車是我的。 6、狀語 修飾動詞，形容詞，副詞以及全句的句子成分，叫做狀語。用作狀語的通常是副詞，介詞短語，不定式和從句等。狀語一般放在被修飾的詞之後或放在句尾。副詞作狀語時可放在被修飾的詞前或句首。 HelivesinLon'don.他住在倫敦。 7.補語 用來說明賓語或主語所處的狀態或正在進行的動作，因為英語中有些動詞加賓語後意思仍然不完整，如：make(使...),ask(請)等等。如果我們說：我們使我們的祖國。這不是一句完整的話。應該說：我們使我們的祖國更美麗。這是的「美麗的（beautiful)」為形容詞做補語，說明祖國的狀態。英語句子為:We will make our country more beautiful.作補語的詞或片語為：形容詞，副詞，名詞，不定式，ing形式，數詞等。 8.賓補 就是賓語補足語，就是補充說明賓語的 例：I know you are student good at maths 在這個句子中，good at maths 就是補語。 賓語補語也可以是句子，所以這個句子也可以是： I know you are student who is good at maths 還可以是-ing 形式 I see you crossing the street 簡單說就是補充和說明主語和賓語的成分.因此,就出現了主語補足語和賓語補足語.上面兩位舉的例子都不錯.只是熱雪冰冷的賓補的句子例子不是很恰當哦.他的例子是定語從句 啊 還有 主語補足語可以是表語 例如:Tom is a student.student是對Tom的解釋與說明. 另外,Tom was seen playing on the playground.這個句子中playing是對Tom的解釋說明 是主補
D. 英語語法點三十個有例句，謝謝
以下三十個句子的語法內容包含虛擬語氣、強調句型、定語從句、it做形式主語、非謂語動詞等等。 在讀句子時 要注意這些語法內容的運用， 最好把句子中的重點單詞全部掌握住！
1. If the rules of perspective had not been discovered, no one would have been able to paint such realistic pictures.如果沒有發現透視法,人們就不可能畫出如此逼真的畫。
2. Without the new paints and the new technique, we would not be able to see the many great masterpieces for which this period is famous.沒有新的顏料和新的(繪畫)手法，我們就不能看到很多使這一時代著名的傑作。
3. Among the painters who broke away from the traditional style of paining were the Impressionists，who lived and worked in Paris.在那些突破傳統畫法的畫家中，有生活和工作在法國巴黎的印象派畫家。
4. At the time they were created，the Impressionist paintings were controversial，but today they are accepted as the beginning of what we call "modern art".
在印象派作品的創建初期,它們是存在著爭議的,但是如今己被人們接受而成為現在我們所說的"現代藝術"的始祖了。
5. You can also explore Frick's beautiful home and garden which are well worth a visit.
你還可以好好考察一下弗里克美麗的故居和花園，它們是很值得一看的。
6. When you walk into the gallery, you feel as if you were inside a fragile, white seashell. 當你走進畫廊的時候，你會覺得你進入了一個易碎的白色貝殼之中。
7. It is amazing that so many great works of art from the late 19th century to the 21st century are housed in the same museum. 令人驚奇的是，在同一家博物館里竟能容納下19世紀後期到21世紀的如此眾多的名家巨作。
8. There are various reasons why people write poetry. 人們寫詩有著各種各樣的理由。
9. The language is concrete but imaginative, and they delight small children because they rhyme, have strong rhythm and a lot of repetition.（童謠的）語言具體但富有想像力，這能使小孩子們快樂，因為它們押韻，節奏感強,並較多重復。
10. By playing with the words in nursery rhymes, children learn about language.
通過童謠中的文字游戲，孩子們學習了語言。
11. Another simple form of poem that students can easily write is the cinquain, a poem made up of five lines. 另外一種學生容易寫的簡體詩是由五行組成的,叫做五行詩。
12. With so many different forms of poetry to choose from，students may eventually want to write poems of their own. 有了這么多可供選擇的詩歌類型,學生們最終也許想自己作詩了。
13. I think my long and active life must be e to the healthy life I live. 我想我之所以長壽而且精力充沛,要歸功於我的健康生活。
14. First, you can become physically addicted to nicotine, which is one of the hundreds of chemicals in cigarettes.首先,你會在身體上對尼古丁有癮，它是香煙里幾百種化學物質之一。
15. I didn't know, for example, that it could do terrible damage to your heart and lungs or that it was more difficult for smoking couples to become pregnant.
例如，我不知道抽煙能嚴重侵害人的心臟和肺部，也不知道吸煙的夫婦生育能力會下降。
16. It isn't easy to stop smoking, but millions have managed to quit and so can you.
戒煙不容易，但許許多多的人都成功地戒掉了煙，所以你也能戒煙。
17. Every time you feel like smoking a cigarette, remind yourself that you are a non-smoker.
每當你想要吸煙的時候,你就提醒你自己,你(已經)是不吸煙的人了。
18. It is only when the disease has progressed to AIDS that a person beginsto look sick. 只有當這種病毒發展成艾滋病時,人才會顯出病態。
19. All scientists subscribe to the view that the increase in the earth's temperature is e to the burning of fossil fuels like coal, natural gas and oil to proce energy.
所有的科學家贊同這種觀點：人們為了生產能量而燃燒化石燃料如煤、天然氣和石油，從而引起了地球溫度的升高。
20. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up. 這意味著更多的熱量被困在大氣層中，從而引起全球溫度上升。
21. It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. 是一位名叫查爾斯·基林的科學家曾經把1957-1997年期間大氣層中二氧化碳的含量作了精確的統計。
22. They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. 他們還贊同下述觀點，正是燃燒越來越多的化石燃料導致了二氧化碳的增加。
23. On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbondioxide in the air.
另一方面，還有一些人，像科學家喬治·漢布利，反對上面的觀點，他們認為我們不必擔心空氣中會有高含量的二氧化碳。
24. It's OK to leave an electrical appliance on so long as you are using it — if not, turn it off! 在用電器設備時你可以讓它開著，如果不用就把它關掉!
25. Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast.
收集和評估了這些信息之後，我就幫助其他科學家一起預測下次火山熔岩將往何處流去，流速是多少。
26. I was about to go back to sleep when suddenly my bedroom became as bright as day. 我剛要再睡,突然我的卧室亮如白晝。
27. Having studied volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.
雖然我從事火山研究很多年了,但是我對火山的壯麗景色以及它那潛在的巨大破壞力至今仍然感到驚愕不已。
28. The height of the land varies from 700 metres above sea level to over 2,000 metres and is home to a great diversity of rare plants and animals.
這里地面的高度從海拔700米到2000多米不等,是多種多樣稀有動植物的生長地。
29. When you arrive you are rewarded not only with the sight of its clear waters, but also by the view of the other sixteen mountain peaks that surround Tianchi.
你一到達山頂就會得到回報一一你不僅可以看到天池那清澈如鏡的湖水，而且還可以看到天池四周的16座山峰。
30. It is said that this boy, who had a great gift for language and persuasion, is the father of the Manchu people. 據說這個男孩就是滿族人的祖先，具有語言天賦和很強的說服力。
E. 如何學好英語語法。寫出優美的句子
學好語法只能做到句子准確沒有語病,但要寫出優美的句子還得靠平時多讀,多看,多積累,對語言的積累達到一定程度,才有可能實現,不要急啊
F. 英語 語法 句子
because引導的是前面主句的狀語從句，不是後面賓語從句的狀語從句
G. 英語語法 被動 例句
should have been given the job
been showed what to do
H. 一個英語例句的語法。
Yet副詞作狀語表示轉折，意思是然而。I』d sit = I would sit 表示過去一段時間習慣的動作。sweating... 現在分詞作伴隨狀語，邏輯主語是句子的主語 I。
I. 英語的時態語法（所有）+例句
1. 現在一般時與現在完成時
1) I come from Shanghai(上海人）
I have come from Shanghai（從上海來）
2) You read very well. (強調能力）
You've read very well. （強調一次剛完成的動作）
3) I forget.(一時想不起來了）
I have forgotten.（仍沒想起來，可能已回憶起來了）
4) The book is written in simple English. (表狀態）
The book has been written in simple English.（表動態，已用英語寫成）
5) Every time I see him, he's been reading. （兩個動作不可能同時進行）Every time I have seen him, he's been reading. (強調兩個動作同時進行）
6) He is gone. (強調狀態）He has gone （強調動作和時間）
7) He won't come till the play begins. (演出開始時）
He won't come till the play has begun.（戲已開始）
8) After I leave school, I'll go to college. （兩個動作緊密相接）
After I have left school, I'll go to college.（強調畢業後，兩個動作可能有間隔）
9) It is a long time since I saw you last. It's been a long time since I saw you last.(這兩句話一樣，後一句是美國英語）
10) Where are you? (在哪）Where have you been?(去了哪）
2. 現在一般時與現在進行時
1) He works hard.（強調始終如一）He is working hard.（強調現在）
2) What do you do? (干什麼工作的）What are you doing?（在干什麼）
3) Here comes the bus! (表高興和欣慰）
The bus is coming.（汽車到來的情景）
4) I forget him name. I'm forgetting his name.(差點把他的名字忘了）
5) You don't eat much. (強調胃口不大）
You're not eating much.（你怎麼不吃呀）
6) The match starts at 7 o'clock. (比較固定，不宜改變）
The match is starting at 7 o'clock.（可以改變）
7) Tom always comes late. Tom is always coming late.(表示不滿，責備）
8)Tom goes to college now.
Tom is going to college now.(這兩句區別不大，後者更生動）
9） I tell you.（我可以告訴你）
I'm telling you.(我告訴你吧，有感情色彩）
10) He always sleeps in the afternoon.
He is always sleeping in the afternoon.(後者意味著整個下午都睡掉了）
11) I expect you to phone me. ( 幾乎等於命令）
I'm expecting you to phone me.（婉轉）
12) What do you say? What are you saying?(你說些什麼呀，表說話人驚訝，不滿）
12) I find that the book is too difficult for me.(強調結果） I'm finding that the book is too difficult for me. (強調過程，逐漸感到）
13) Apples cost more these days.(強調事實)
Apples are costing more these days.(越來越貴)
14) He always thinks of others.
He's always thinking of others.(表示贊揚)
15) Whenever I see him, he argues with somebody.(強調兩個動作有先後) Whenever I see him, he is arguing with somebody.(強調兩個動作同時進行)
16) I hope you'll give us some advice.
I'm hoping you'll give us some advice.(表示語氣婉轉)
17) I must go. (我應該去)I must be going.(我該走了)
18) We can discuss this while we eat.(說話是沒用餐)
We can discuss this while we are eating.(進餐已開始)
3. 現在完成時與過去一般時
1) I've seen him this morning.(還在上午的時間里)
I saw him this morning.(時間已不在上午了)
2) Who's opened the window? (窗戶還在開著)
Who opened the window? (與現在無關,窗戶可能已關上)
3) Have you ever heard him sing? (他可能不是愛唱歌)
Did you ever hear him sing?(你曾聽過他唱歌嗎,他可能是歌唱家)
4) Have you ever heard of such a thing? (你聽過這種事嗎)
Did you ever hear of such a thing?(這種事, 你聽說過嗎? 是一個修辭性問題，表示驚異。)
5) What have I done to make you so angry? (對方仍生氣）
What did I do to make you so angry? （暗示某一過去的時間，可能對方已不生氣了。）
6) How has he done it? (他這活乾的怎麼樣？強調結果）
How did he do it?（他是怎麼干這活的？強調幹活的方式）
7) He has lived in New York for eight years. (他仍在紐約）
He lived in New York for eight years.（他可能不在人世了）
8) He has been called a thinker.
He was called a thinker.(他曾被譽為思想家）
9) You've heard what I said. (你聽見我的話了）
You heard what I said.（你是聽見我的話的，口氣嚴厲，具有感情色彩。）
10) I've lost my pen. (筆還沒找到）I lost my pen.（筆可能找到了）
11) He has already been there. (曾去過哪）
He was already there.（當時在哪）
12) Since I have been ill, my friend has visited me every day.（生病還在延續）Since I was ill, my friend has visited me every day. (病已好了）
13) Have you slept well? (暗示疲倦了，休息後是否好些了）
Did you sleep well?（暗示睡的是否舒服，滿意）
4. 過去完成時與過去一般時
1) I came here after I finished middle school.(兩個動作每間隔)
I came here after I had finished middle school.(兩個動作有間隔,強調先後概念)
2) I waited till I saw him.
I waited till I had seen him. (這兩個句子差不多,過去完成時更普遍)
3) We hoped he would come.(我們希望他來)
We had hoped he would come.(我們本希望他來的)
4) I don't think he sang as well as he once did.(指具體一次)
I don't think he sang as well as he had once done.(泛指以前,現在可能不唱了)
5) Before I came here, I was a soldier.(我來此以前在當兵)
Before I came here, I had been a soldier.(我來此以前,曾當過兵)
6) Jim said he didn't know he was so strong.(表示Jim在說話時仍很結實) Jim said he didn't know he had been so strong.(表示在Jim說話之前曾結實過)
7) They were friends from many years.(表示現在還是朋友)
They had been friends for many years.(意味這友誼結束了)
8) He did the work at 6.(強調時間)
He had done the work at 6. (6點工作已做完)
9) I learned French ring my holiday.(強調學了)
I had learned French ring my holiday. (強調學會了)
10) When she sang she sat down.(表示唱著坐下)
When she had sung she sat down.(表示唱完坐下)
11) I went to bed when I did my homework.(不明確)
I went to bed when I had done my homework.(作業做完)
12) I have lived here since I was a child.(從我長大成人)
I have lived here since I had a child.(從我孩提時)
5. 過去進行時與過去一般時
1) I read a book yesterday. (書已看完)
I was reading a book yesterday.(書尚未看完)
2) The guests arrived.(客人已到)
The guests were arriving.(客人陸續到達)
3) He woke from a dream. (表示全醒)
He was waking from a dream.(表示初醒)
4) The old man died.(已死) The old man was dying.(要死)
5) John told me about it.(告訴我了,我都知道了)
John was telling me about it.(跟我談起過,我想了解更多的事情)
6) They persuaded me to go along with them.(已經說服)
They were persuading me to go along with them.(還在勸說)
7) The wind blew hard all night.(強調事實)
The wind was blowing hard all night.(強調風刮個不停)
8) I expected you. I was expecting you.(客氣,表示可能等了很舊了)
9) He knocked at the door.(強調一次性)
He was knocking at the door.(強調多次性)
6. 將來一般時與現在進行時
1) Will he come? Is he coming?(時間發生的比較近)
2) How long will you stay hear? (表示意願)
How long will you stay here?(表示打算)
3) She'll have a baby. (表示肯定)
She's going to have a baby.(表示推測,計劃)
4) I'll see him this evening.(表示意願)
I'm seeing him this evening.(表示打算,已有安排)
7. 現在一般時與過去一般式
1) Do you wish to see me?
Did you wish to see me?(表示婉轉客氣)
2) That's all I have to say.(我的話就這些)
That's all I had to say.(我要說的就這些)
3) How do you like the film? (看電影過程中)
How did you like the film?(看完電影後)
4) It is nice to see you.(見面時說)
It was so nice to see you.(離別時說)
5) I never like him. (沒時間性)
I never liked him.(從來沒喜歡過)
6) I think I know that voice.(沒見客人時)
I thought I know that voice.(見到客人時,證明自己正確或錯誤)
7) Who is that? (哪人還在)
Who was that?(人已不在場了)
8) This cake is made at home. (家裡常做這種蛋糕)
This cake was made at home.(這種蛋糕是自家做的)
8.現在完成時與現在完成進行時
1) Someone has phoned you.(打了電話)
Someone has been phoning you.(一直在打電話)
2) I've read the novel.(已讀完)
I've been reading the novel.(還沒讀完)
3) He has lived here for six weeks.
e has been living here for six weeks. (區別不大,後者更口語化)
4) Have you met her lately?
Have you been meeting her lately?(強調動作的重復,經常見面)
5) Who's eaten my apples? ( 蘋果沒有了)
Who's been eating my apples?(有感情色彩,表示憤怒不滿)
9.現在一般時與過去完成時
1) I hope that he'll come.
I had hoped he would come.(與事實相反)
(經常這樣用的詞有:expect, think, intend, mean, suppose)
J. 求英語各種語法形式的例句
狀語從句1.地點狀語從句
地點狀語從句通常由where, wherever 引導。例如：
Where I live there are plenty of trees. 我住的地方樹很多。
Wherever I am I will be thinking of you. 不管我在哪裡我都會想到你。 2.方式狀語從句
方式狀語從句通常由as, （just） as…so…, as if, as though引導。
1）as, （just） as…so…引導的方式狀語從句通常位於主句後，但在（just） as…so…結構中位於句首，這時as從句帶有比喻的含義，意思是"正如…"，"就像"，多用於正式文體。例如： Always do to the others as you would be done by. 你希望人家怎樣待你，你就要怎樣待人。
As water is to fish, so air is to man. 我們離不開空氣，猶如魚兒離不開水。
Just as we sweep our rooms, so we should sweep backward ideas from our minds.
正如打掃房屋一樣，我們也要掃除我們頭腦中落後的東西。
2）as if, as though
兩者的意義和用法相同，引出的狀語從句謂語多用虛擬語氣，表示與事實相反，有時也用陳述語氣，表示所說情況是事實或實現的可能性較大。漢譯常作"彷彿……似的"，"好像……似的"。例如：They completely ignore these facts as if （as though） they never existed. 他們完全忽略了這些事實，就彷彿它不存在似的。（與事實相反，謂語用虛擬語氣。）
He looks as if （as though） he had been hit by lighting. 他那樣子就像被雷擊了似的。（與事實相反，謂語用虛擬語氣。）
It looks as if the weather may pick up very soon. 看來天氣很快就會好起來。（實現的可能性較大，謂語用陳述語氣。）
說明：as if / as though也可以引導一個分詞短語、不定式短語或無動詞短語。例如：
He stared at me as if seeing me for first time. 他目不轉睛地看著我，就像第一次看見我似的。
He cleared his throat as if to say something. 他清了清嗓子，像要說什麼似的。
The waves dashed on the rocks as if in anger. 波濤沖擊著岩石，好像很憤怒 3.原因狀語從句
比較because, since, as和for：
1）because語勢最強，用來說明人所不知的原因，回答why提出的問題。當原因是顯而易見的或已為人們所知，就用as或 since。例如：
I didn't go, because I was afraid. 我不去是因為我怕。
Since /As the weather is so bad, we have to delay our journey. 天氣那麼糟，旅行推遲了。
2）由because引導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。例如：
He is absent today, because / for he is ill. 他今天缺席，因為他病了。
He must be ill, for he is absent today. 他一定病了，所以今天缺席。4.目的狀語從句
表示目的狀語的從句可以由that, so that, in order that, lest, for fear that, in case等詞引導。例如：You must speak louder so that /in order that you can be heard by all. 你必須大點聲，別人就能聽見了。
He wrote the name down for fear that（lest） he should forget it. 他寫下了這個名字以免以後忘記。
Better take more clothes in case the weather is cold. 最好多穿點衣服，以防天發冷。5.結果狀語從句
結果狀語從句常由so…that 或 such…that引導。so…that與such…that之間可以轉換。例如：
The boy is so young that he can't go to school. 這男孩年齡太小，不能上學。
He is such a young boy that he can't go to school 6. 條件狀語從句
連接詞主要有 if, unless, as/so long as, on condition that 等。if 引導的條件句有真實條件句和非真實條件句兩種。非真實條件句已在虛擬語氣中闡述。 unless = if not. 例如：
Let's go out for a walk unless you are too tired. 如果不太累，我們去散散步。
If you are not too tied, let's go out for a walk.
典型例題
You will be late ___ you leave immediately.
A. unless B. until C. ifD. or
答案A。句意：除非你立即走，否則你就回遲到的。可轉化為 If you dong leave immediately, you will be late。B、D句意不對，or表轉折，句子如為 You leave immediately or you will be late. 7. 讓步狀語從句
1）though, although引導的讓步狀語從句，後面的從句不能有but，但是 though 和yet可連用。例如：
Although it's raining, they are still working in the field.雖然在下雨，但他們仍在地里幹活。
He is very old, but he still works very hard. 雖然他很老了，但仍然努力地工作。
Though the sore be healed, yet a scar may remain. 傷口雖癒合，但傷疤留下了。（諺語）
2） as, though 引導的讓步從句必須表語或狀語提前（形容詞、副詞、分詞、實義動詞提前）。例如：
Child as /though he was, he knew what was the right thing to do. 雖然是個小孩，該做什麼不做什麼，他全知道。
3） ever if, even though即使。例如：
We'll make a trip even though the weather is bad. 即使天氣不好，我們也要去遠足。
4） whether…or…不管……都。例如：
Whether you believe it or not, it is true. 信不信由你，這確實是真的。
5）"no matter +疑問詞" 或"疑問詞+後綴ever" 。例如：
No matter what happened, he would not mind. =Whatever happened, he would not mind. 不管發生什麼，他不在意。
替換：no matter what = whatever
no matter who = whoever
no matter when = whenever
no matter where = wherever
no matter which = whichever
no matter how = however
注意：no matter 不能引導主語從句和賓語從句。8. 比較while, when, as
1）as, when 引導短暫性動作的動詞。例如：
Just as / Just when / When I stopped my car, a man came up to me. 我一剎車，有一個人向我走來。
2）當從句的動作發生於主句動作之前，只能用when 引導這個從句，不可用as 或 while。例如： When you have finished your work, you may have a rest. 趕完活後，你可以休息一下。
3）從句表示"隨時間推移"連詞能用as，不用when 或while。例如：
As the day went on, the weather got worse.日子一天天過去，天氣越變越壞。9.比較until和till
此兩個連詞意義相同。肯定形式表示的意思是"做某事直至某時"，動詞必須是延續性的。否定形式表達的意思是"直至某時才做某事"。動詞為延續性或非延續性都可以。正確使用這兩個連詞的關鍵之一就在於判斷句中的動詞該用肯定式還是否定式。肯定句：I slept until midnight. 我一直睡到半夜時醒了。
Wait till I call you. 等著我叫你。（在肯定句中可用before代替。例如 Let's get in the wheat before the sun sets.）
否定句：She didn't arrive until 6 o'clock. 她直到6點才到。
Don't get off the bus until it has stopped. 公共汽車停穩後再下車。
I didn't manage to do it until you had explained how. 直到你教我後，我才會做。
區別：1）until可用於句首，而till通常不用於句首。例如：
Until you told me, I had heard nothing of what happened. 直到你告訴我以前，出了什麼事我一點也不知道。
2）until when 疑問句中，until要放在句首。例如：
---Until when are you staying?你呆到什麼時候？
--- Until next Monday.呆到下周一。
注意：否定句可用另外兩種句式表示。
1）Not until…在句首，主句用倒裝。例如：
Not until the early years of the 19th century did man know what heat is. 直到19 世紀初，人類才知道熱為何物。
Not until I began to work did I realize how much time I had wasted. 直到工作，才認識到我已蹉跎了幾多歲月。
2）It is not until… that… 。例如：
It was not until I began to work that I realized how much time I had wasted.
10.表示"一…就…"的結構
hardly/scarcely…when/before, no sooner…than和as soon as都可以表示"一…就…"的意思。例如：
I had hardly / scarcely got home when it began to rain. 剛回家，就下起雨來了。
I had no sooner got home than it began to rain.
As soon as I got home, it began to rain.
注意：如果hardly, scarcely 或no sooner置於句首，句子必須用倒裝結構。例如：
Hardly / Scarcely had I got home when it began to rain.
No sooner had I got home than it began to rain.定語從句 1.關系代詞引導的定語從句1）who, whom, that 這些詞代替的先行詞是人的名詞或代詞，在從句中作主語和賓語。例如：
Is he the man who/that wants to see you? 他就是你想見的人嗎？（who/that在從句中作主語）
He is the man whom/ that I saw yesterday. 他就是我昨天見的那個人。（whom/that在從句中作賓語）
2） whose 用來指人或物，（只用作定語, 若指物，它還可以同of which互換）。例如：
They rushed over to help the man whose car had broken down.那人車壞了，大家都跑過去幫忙。
Please pass me the book whose （of which） cover is green.請遞給我那本綠皮的書。
3）which, that所代替的先行詞是事物的名詞或代詞，在從句中可作主語、賓語等。例如：
A prosperity which / that had never been seen before appears in the countryside.
農村出現了前所未有的繁榮。（which / that在句中作賓語）
The package （which / that）you are carrying is about to come unwrapped. 你拿的包快散了。 （which / that在句中作賓語）
2.關系副詞引導的定語從句 1）關系副詞when, where, why的含義相當於"介詞+ which"結構，因此常常和"介詞+ which"結構交替使用。例如：
There are occasions when （on which） one must yield.任何人都有不得不屈服的時候。
Beijing is the place where（in which） I was born.北京是我的出生地。
Is this the reason why （for which） he refused our offer?這就是他拒絕我們幫助他的理由嗎？
2）that代替關系副詞，可以用於表示時間、地點、方式、理由的名詞後取代when, where, why和"介詞+ which"引導的定語從句，在口語中that常被省略。例如：
His father died the year （that / when / in which） he was born.他父親在他出生那年逝世了。
He is unlikely to find the place （that / where / in which） he lived forty years ago. 他不大可 能找到他四十年前居住過的地方。
名詞性從句
(一)主語從句類
I What he need is more time 2 Where she has gone is a mystery． (二)表語從句類The fact iS that she never liked him． The question is who can complete teh dificult task。(三)賓語從句類1．Do you know what they are doing? 2．It is a matter of who will hold the position．(四)同位語從句類 He has no idea what was the matter with him．
The news that his class got the first prize in the relay—is true．