2017届高考英语一轮单元总复习教案精品荟萃：外研版必修二Module 2《No Drugs》

　　2017届高考英语一轮单元总复习讲义精品荟萃外研版必修二Module 2

　　知识详解

　　① reduce 　vt.　减少；缩减；约束，限制；使降低，降职；

　　　使……变为(某个状态)(回归课本P12)

　　reduce...to...把……减少到……,reduce...by...把……减少了……,reduce sb.to doing sth.迫使某人做某事；使某人不得不做某事,reduction n.缩小，减少；缩版,make a reduction减价

　　【归纳总结】

　　【例句探源】

　　①The expenses have been reduced to

　　1,000 yuan one month.

　　每月的费用已降到1,000元。

　　②The expenses have been reduced by 200 yuan one month.

　　每月的费用已降了200元。

　　③Eventually Charlotte was reduced to begging on the streets.

　　最后夏洛特被迫沦落到沿街乞讨。

　　④We can make a reduction if you buy in bulk.

　　如果你大批购买，我们可以降低价格。

　　1．Many students have dropped out of school and now the number of our class has ________50.

　　A．reduced by　

　　B．reduced toC．increased to

　　D．increased by

　　解析：选B。reduce...to后面数字指减少后的总量，reduce...by后面数字指纯减少的量或比率。由上面说到drop，故排除C、D。