as用法系列一as在比較狀語從句中應(yīng)用

1、精選優(yōu)質(zhì)文檔-傾情為你奉上as用法系列（一）as在比較狀語從句中應(yīng)用as簡單之至的一個單詞,用法卻非常復(fù)雜.我會陸續(xù)分類收集整理,如果能對大家有所裨益,我將頗感欣慰.as用法一.兩種事物的同種屬性進(jìn)行比較,as中間是形容詞或副詞,結(jié)構(gòu)如下:事物A+謂語+as/so+adj（形容詞）/adv（副詞）+as+事物B注:肯定句用as,否定句用as/so均可. 它們是adv（副詞）用來修飾其后的adj（形容詞）/adv（副詞）,as是連詞用來連接事物B.例句分析:1.She is as beautiful as her sister. 她和她姐姐一樣漂亮.造句步驟1.先寫句子 她漂亮 She is b

2、eautiful.肯定句在形容詞前加as,所以句子為:She is as beautiful.步驟2.找比較對象她姐姐 her sister,并在其前加as,所以為:as her sister步驟3.將1和2連起來完整句子為 She is as beautiful as her sister.2.She doesn't study as/so hard as her sister.她不如她姐姐學(xué)習(xí)用功.造句步驟1.先寫句子 她學(xué)習(xí)不用功 She doesn't study hard. 否定句在副詞前加as/so,所以句子為:She doesn't study as/so

3、 hard.步驟2.找比較對象她姐姐 her sister,并在其前加as,所以為:as her sister步驟3.將1和2連起來完整句子為 She doesn't study as/so hard as her sister.as用法二.事物A+謂語+倍數(shù)+as/so+adj（形容詞）/adv（副詞）+as+事物B倍數(shù)詞:once,twice,three times,four times.half , 基數(shù)詞+序數(shù)詞（基數(shù)詞大于1,序數(shù)詞后加+s）來表示幾分之幾, 三分之一one third,三分之二two thirds,例句 My books are twice as many

4、as yours.我的書是你的兩倍多.as用法三.兩種事物的同種屬性進(jìn)行比較,as中間是名詞,結(jié)構(gòu)如下:事物A+謂語+as+adj（形容詞）+a+n（名詞）as+事物B例句分析:She is as clever a child as my sister. 她和我妹妹一樣是聰明的孩子.造句步驟1.先寫句子 她是個聰明的孩子.She is a clever child .as只修飾形容詞,不能修飾a,所以a,clever交換位置,as放在clever前,所以句子為:She is as clever a child步驟2.找比較對象我妹妹 my sister,并在其前加as,所以為:as my si

5、ster步驟3.將1和2連起來完整句子為:She is as clever a child as my sister.as用法四.主語+謂語+as+adj/adv+as one can（could）/possible.盡可能.例:I read the book as carefully as I can.我盡可能認(rèn)真地看這本書.注:以上幾種用法均是形容詞,副詞原級比較從句,事物B都省略了與事物A后相同謂語部分,one can 后也省略了與謂語相同部分.as用法五.同種事物的兩種不同屬性,則無比較含義,只說明這種事物具有兩種屬性,肯定句意為又.又.,不但.而且., .而,卻.句子結(jié)構(gòu)為:句子A+

6、謂語+as+adj（形容詞）+as+句子B例句分析:1.She is as clever as she is beautiful. 她既聰明又漂亮.造句步驟1.先寫句子 她聰明 She is clever.肯定句在形容詞前加as,所以句子為:She is as clever步驟2.再寫句子她漂亮 She is beautiful.在句子前加as,所以句子為:as she is beautiful步驟3.將1和2連起來完整句子為 : She is as clever as she is beautiful.2.We are as poor as we are happy. 我們窮但我們快樂.3.

7、She is as beautiful as her sister is ugly.她長得漂亮,她妹妹長得丑.造句步驟同1.不再贅述.as用法六:主語+be+as+adj+as+同一adj can be.例:as rich as rich can be 富得不能再富了as poor as poor can be 窮得不能再窮了as dirty as dirty can be 臟得不能再臟了as bad as bad can be 壞得不能再壞了as much as much can be 多得不能再多了as用法七:as+adj+as+（數(shù)字）+名詞例:as many as five hundr

8、ed students 多達(dá)五百學(xué)生as long as five meters 長達(dá)五米as wide as two meters 寬達(dá)兩米as tall as two meters 高達(dá)兩米as far as the station 遠(yuǎn)至車站as late as two in the morning 遲至凌晨兩點as early as last week 早在上周as easy as ABC 極其容易, as busy as bee 非常忙as用法八:as well as 也,和可以看作連詞,可以連接主語,謂語等并列成分.例:1.連接主語 The teacher as well as he

9、r students goes to the park every week.謂語動詞人稱和數(shù)與原句主語保持一致.2.連接謂語 She did her homework as well as helped her brother with his English.3.連接不定式 My mother asks me to do my homework as well as clean my room.連接不定式時,前一個帶to,后一個多不帶toas well=too 也,通常用在句末.I am going to the park and my sister is goig to as well.

10、might （just） as well do sth 最好干某事We might as well stay at home.as用法九:not so much.as.與其說.不如說.可連接主語后任意并列成分.例:1.He is not so much my teacher as my friend. 與其說他是我老師,不如說他是我朋友.2.Success lies not so much in luck as in hard work.成功與其說在于運氣,不如說在于努力工作.3.We do not so much help her as teach her.與其說我們在幫她,不如說我們在教她

11、.4.The life is not so much to teach us how to solve the problems as to teach us how to face the difficulties. 生活與其說教我們怎樣解決問題,不如說教我們怎樣正視困境.注:not so much.連起來看作連詞,not不與助動詞連用.not so much as .=not even 甚至都不,其中not須與助動詞連用.He can't so much as write his own name.他甚至連名字都不會寫.as用法系列（二）as在定語從句中應(yīng)用一.as在定語從句中做關(guān)

12、系代詞,在從句中充當(dāng)主語,賓語,或表語,as做表語習(xí)慣省略be動詞.as在限制性定語從句中1.such+名詞+as從句 such用來修飾名詞I don't like such a man as talks big.我不喜歡吹牛的人.Such house as she could find was expensive .凡是他能找到的房子都很貴.注意區(qū)別下面兩句話This is such an interesting book as everyone likes.定語從句 as做賓語 這是一本每個人都喜歡的書.This is such an interesting book that e

13、veryone likes it. 結(jié)果狀語從句 這是一本有趣的書以至于每個人都喜歡.（such 修飾名詞,so修飾形容詞或副詞）such+名詞+as 表列舉I like such animals as dogs ,cats.such +n+as to do sthI am not such a fool to believe her .such as to do sthMet with disappointments such as to drive me mad .2.such as從句 such是代詞在主句中充當(dāng)主語,賓語,表語Such as you see is our house.s

14、uch as 表列舉I know three languages, such as Chinese,English.such+n+as to =such+n+（that）從句as such 意思是"本身"Money as such will seldom bring happiness.the same +名詞 +as從句I have the same book as he is reading.定語從句 as做賓語 我有一本和他正在讀的一樣的一本書.（兩本書）I have the same book that he is reading.定語從句 that做賓語 我得到了

15、他正在讀的那本書.（同一本書）as（so）+adj+a+名詞+as從句 只能用名詞單數(shù)He is as clever a child as I ever saw. 定語從句 as做賓語他是我曾經(jīng)見過的最聰明的孩子.so +形容詞+as to do sth =so.that. （so修飾形容詞或副詞）I get up so early to catch the first bus.so as to do sth =in order to sthI worked hard so as to finish it before weekend.as在非限制性定語從句中修飾主句,對主句所陳述的事實加以概

16、括,補充,說明等,此時as和which一樣.區(qū)別:（1）as位置靈活,可在主句前,可在主句后,which只能在主句后.（2）不是修飾主句,當(dāng)前面有先行詞時,不能用as,只能用which.例:The elephant is not like a snake,which has no legs.更多例子:as 做主語as is well known （to us）as was mentioned beforeas could be expectedas could be judged from her eyesas may be seen from the bookas is recounted

17、in his storiesas everyone could doas often happensas will be shown in fig.3as has been pointed outas has been explainedas is often the caseas （is） usualHe listed the names as follows （follows永遠(yuǎn)是單數(shù)）as做賓語as we all can seeas we all knowas it isas用法系列（三） as在其它狀語從句中應(yīng)用as引導(dǎo)時間狀語從句（注意與when,while區(qū)別） as常有隨著的意思

18、.1.As time went by ,I become more and more interested in music.As I was getting off the bus ,I saw her . （此時=while when）2.as soon asHe got a job as soon as he left university.as引導(dǎo)原因狀語從句（注意與for,since,beacuse,now that區(qū)別）As I got up late this morning,I was late for school.as（though）引導(dǎo)讓步狀語從句 （as,though從

19、句在主句之前,須倒裝,從句中狀語,動詞原形,表語置于句首.如表語是名詞,前置時省略冠詞）Child as he is ,he knows a lot .Try as he might ,he couldn't find a job .as if（as though）引導(dǎo)方式狀語從句 （從句一般用虛擬語氣）The teacher treats the students as if they were her own children.（just）as 引導(dǎo)方式狀語從句When in Rome,do as the Romans do .as（so） long as 引導(dǎo)條件狀語從句As long as you study hard ,yo