as的用法 (2)

1、As 用法用法 實例實例as的豐富用法1.可用作連詞，引導比較、時間、原因、方式及讓步等五種狀語從句引導的比較狀語從句往往有省略；引導時間狀語從句一般用一般現(xiàn)在時而不用一般將來時；引導原因狀語從句時與“Because”和“since”引導的從句比較起起來語氣最弱。 2. as作關(guān)系代詞,引導定語從句,表示：正如,這一點3. as作介詞表示：好像，作為，當作 4.作副詞表示：與等同 ，像，如 1.作“在期間，當?shù)臅r候”引導時間狀語從句。注意與when、 while的用法區(qū)別。 下列情形時,只用as, 而不用when或while。 1)用于表示同一個人的兩種動作交替進行,指一邊一邊 如: The

2、girl sings as she goes to school. He looked behind occasionally as he went forward in the forest. A monkey watched them as it rubbed itself. 2)表示兩個同步發(fā)生的動作或行為，意思是 隨著的發(fā)展 如: As time went on / by, she became more and more beautiful . As children get older, they become more and more interested in everyth

3、ing. 3)表示兩個短暫行為或事情幾乎同時發(fā)生如:I watched her as she read the book. I thought of it just as you opened your mouth. Just as the flying worm hit her face, she gave a loud cry. 就在飛蟲撞到她臉時她大叫。 4)接在名詞后面表示某一個年齡段時.如: As a young man, he was active in sports. 當他年少時，他在運動方面活躍。 when作“當?shù)臅r候”解,可以指較短的(一點)時間,也可指一段時間。 如:Whe

4、n I was at college, I could speak several foreign languages. 當我在大學時，我可以講幾種外語。 When the clock struck twelve, I had slept for 2hours. 當鐘敲12時，我早已睡了2小時了。 while常表示一段較長的時間或一個過程,強調(diào)主句謂語動詞與從句謂語動詞同時發(fā)生。如:Work while you work. Play while you play.工作時努力工作工作時努力工作,放松時盡情放松放松時盡情放松 2.As =Since 作“既然”、“由于”解,引導原因狀語從句,常用來

5、表示已為人們所知或顯而易見的原因或理由。 如: As hes been ill for ages, I will help him. 由于他病了多年，我愿意幫他 As / Since youre not feeling well, you may stay at home. 既然你感覺不舒服，你可以呆在家。 As he wasnt ready , we went without him. 3. As =in the way that作“像”、“按照的方式”解,引導方式狀語從句。如: Do as I told you. 按照我告訴你的做。Remember, you must do everyth

6、ing as I do. 記住，你必須照著我做的去做。 Id like to help as the WWF suggests.我愿意照著世界野生生物基金會建議的來幫助。 4.用于asas或not / so/ as as中, 前一個as是副詞,后一個as是連詞,引導比較狀語從句。 如:They helped the old as much as they could /possible. 他們盡可能多幫助老人。 I dont speak English so/ as well as she does. 我講英語沒有她好。 5. 表示雖然,盡管等,引導讓步狀語從句,常用倒裝語序,模式為: adj

7、. /adv. / n. +as +主語+謂語+主句。如: Young as he is, he knows much. 雖然他小，他知道的多。 Tired as they were, they walked on. 盡管他們累了，他們還是繼續(xù)走。 Much as I like you, I couldnt live with you.我盡管很喜歡你，卻不能和你一起生活。 as作關(guān)系代詞,引導定語從句,表示正如,這一點 He is very careful, as/which we all know. As is well-known, Taiwan belongs to China. 另外,

8、當先行詞被the same, such等詞修飾時,常用as來引導定語從句。如: Such a clever girl as she can learn anything quickly. I was reading the same book as he bought yesterday. as作介詞的用法. 1.表示好像。如:He dressed as a policeman. 2. 表示作為當作。如：I found a job as a guide. 3. 當某人是某身份時。如：As a child , she was sent to abroad. As your teacher, sh

9、e should be strict with you in everything. 作副詞的用法 1 表示與等同。如：This dress is twice as expensive as that one. 2 像，如等。如：As before, he remained unmoved. 安康幸福與你長相伴！安康幸福與你長相伴！甘為人梯，盡享甘為人梯，盡享孩子們步步高升孩子們步步高升后回望的那一刻后回望的那一刻感激的注視！感激的注視！AttentionBoys and girls, Come on! Were on our way to be a best myself!We can make it !As teachers we should know:The mediocre teacher tells