国际顶尖MBA申请交流平台--TOPWAY MBA

标题: 大全 335 [打印本页]

作者: bfghdggf 时间: 2004-7-15 06:54 标题: 大全 335

1. Humans have been damaging the environment for centuries by overcutting trees and farming too intensively, and though some protective measures, like the establishment of national forests and wildlife sanctuaries, having been taken decades ago, great increases in population and in the intensity of industrialization are causing a worldwide ecological crisis.

(A) though some protective measures, like the establishment of national forests and wildlife sanctuaries, having been taken decades ago, great increases in population

(B) though some protective measures, such as the establishment of national forests and wildlife sanctuaries, were taken decades ago, great increases in population

(C) though some protective measures, such as establishing national forests and wildlife sanctuaries, having been taken decades ago, great population increases

(D) with some protective measures, like establishing national forests and wildlife sanctuaries that were taken decades ago, great increases in population（B）

(E) with some protective measures, such as the establishment of national forests and wildlife sanctuaries, having been taken decades ago, great population increases

Not very difficult to get th e right answer. But what's the structure of this sentence.

作者: kuuiytt 时间: 2004-7-15 07:02

Humans have been damaging the environment( for... by ...), and though some protective measures(...) were taken decades ago, great increases( in... and in... )are causing a worldwide ecological crisis.

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