ask、at、as 用法1、ask ask for 要求，请求ask sb.for sth.向（某人）请求（要求）……She asked for some advice on how to learn English well.2、atat 表示速度、价格、利率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。完成句子① 公司决定以较低的价格将这批电视卖掉。The company decided to sell the TV sets _ __ _ __ __ _ 。② 火车正以每小时 150 英里的速度前进。The train was running ______ _____ ______ _______150 miles an hour .Key:①at, a, low, price②at,a, speed,of“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，在打仗完成句子① 别人在工作，不要吵闹。Don’t make any noise while others are ______ ________.② 孩子们在游戏，而他们的父母正在吃饭。The children were ______ ________ while their parents were_______ _______.Key:①at, work②at,play,at,dinneras3、as…asas 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。 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. 明天早晨尽量早起。
