2. 引导原因状语从句: “因为”， 与because的用法相近。
①As it was getting very late, we soon turned back. ②We must stop writing now, as I have a lot of work to do.
3. 引导方式状语从句，作“好像， 按照”。
① When in Rome, do as Romans do. 入乡随俗 ② They tried to paint people and nature as they really were. (Book6 Unit1)
4. 引导让步状语从句，作“虽然， 尽 管”。
这时从句常用倒装语序，即把从句中的表 语,状语或动词原形放在as之前, 即 adj. /adv. / n./ v.+as +主语+谓语+主句
Child as she is she knows a lot. ①_____________, 尽管她是个孩子，她懂得很多 ②_____________, Busy as he was he insisted on studying. 尽管他很忙，他坚持学习 as he might Tom could not get out of the ③Try _____________, difficulties. (try) 尽管Tom努力了，他还是不能摆脱困难 Much as I like it ④ _______________,I can’t afford to buy the book. (much) 尽管我很喜欢这本书，但我买不起。
5. 引导比较状语从句
1. as + adj/adv +as 和…一样…
not as (so) adj /adv +as 不如…… Although, nationwide,these cities are not as large as those in China. (Book5 Unit2) as fluently as He doesn’t speak English ____________you. 他说英语不如你流利
2. as much + n + as 不仅是…而且是 There’s just as much a competition among countries to host the Olympics as to win an Olympic medal. (Book2 Unit2)
much an It is generally believed that teaching is as __________ art as a science _____________. 人们普遍认为教书既是一门艺术也是一门科学
6.Now when people refer to England you find Wales included as well. (Book5 Unit2) 7. They tried to paint people and nature as they really were. (Book6 Unit1) 8. I want you to live as long and healthy a life as I have. (Book6 Unit3) 9. As she turned around, there stood Gladys Claffern. (Book7 Unit 2) 10.As far as he was concerned, what other people thought was not the most important thing. (Book7 Unit5)
as常见用法归纳
课文回顾
1.Then he cuts off the leather top of the shoe as if it were the finest steak. (Book4 Unit4) 2.There’s just as much a competition among countries to host the Olympics as to win an Olympic medal. (Book2 Unit2) 3.As you know, our band was formed in a very unusual way. (Book2 Unit5) ing his hybrid rice, farmers are producing harvests twice as large as before. (Book4 Unit2) 5. As time went by, he began making films. (Book4 Unit3)
3. 倍数 + as + adj/adv +as 倍数 + as + much + (u)n +as many + (c)n复 Using his hybrid rice, farmers are producing harvests twice as large as before. (Book4 Unit2)
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as 引导状语从句
1. 引导时间状语从句: “当…时候， 随着，一边…一边”
① I thought of it just as you opened your mouth. ② As time went by, he began making films. (Book4 Unit3) ③ She sang songs as she did her homework.
as much energy as The United States____ the whole Europe. 美国使用的能源是整个欧洲的两倍。
4. as + adj +a/an + n + as 1) I want you to live as long and healthy a life as I have. (Book6 Unit3) as rich 2) Give them encouragement to live _____ and full a life as _________________you do.(Book7 Unit1) 给他们鼓励，让他们像你们一样过着丰富充实的生活 3) When we get closer to the moon, we shall feel its growing pulling us, but it will not be as strong a pull as the earth’s. (pull) (Book3 Unit4) _______________ 当我们接近月球，我们会感到它的重力牵引着我们， 但是不是像地球一样强大的引力