ask的用法和辨析小结

　　at a high/low price以高价/;低价;at 40 miles an hour 以每小时40英里的速度;at a high/low speed以高速/慢速;at an ordinary speed 以普通速度;at full/top speed以全速/高速;at a speed of 以……速度。

　　“at+名词”表示“在进行，从事”

　　at work 在工作;at table在吃饭;at play 在做游戏;at sea 出海;at university/college在上学;at night school在上夜校;at dinner/table在吃饭;at peace处于和平状态;at war在交战，在打仗

　　3、as…as

　　as many as 和……一样多/多达;as much as 和……一样多/多达(注意：many指可数的量，much 指不可数词的量);as high as 和……一样高/高达;as thick as 和……一样厚/厚达;as long as 一样长/长达;as deep as 一样深/深达;as early as 一样早/早在……时候，如：

　　We have as many books as they.我们的书和他们的一样多。/The great fire burned down as many as twenty buildings.大火烧毁的大楼多达20座。

　　[应用]汉译英

　　①新桥与旧桥一样长。/这种鱼可长到长达15英尺。

　　②这座山和远处的另一座一样高。/这座山高达4000米。

　　Key:①The new bridge is as long as the old one./The kind of fish can grow as long as 15 feet.

　　②This mountain is as high as another one in the distance./This mountain is as high as 4,000 metres.

　　as…as possible:as…as one can尽可能地…….

　　①I’ll come back as soon as possible.我尽可能地……

　　②Get up as early as possible tomorrow morning.