gwd-23-3

新鲜的跳蚤

Q31:

According to some botanists, invasive plants are the second most serious threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems.

 

1. threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems

2. threat, after habitat loss, to native species of plants and animals and for maintaining biologically diverse ecosystems

3. threat, after losing their habitat, to native species of plants and animals and also to maintenance of biologically diverse ecosystems

4. threat to native species of plants and animals and for maintaining biologically diverse ecosystems, after habitat loss
5. threat to native species of plants and animals as well as to maintaining biologically diverse ecosystems, after losing their habitat

why A, not C?

dabiaoxun

原文的意思是说invasive plants are the second most serious threat, 而 habitat loss is the

first most serious threat
如果象c所说的after losing their habitat，就跟invasive plants不平行了

dabiaoxun

那先说说你为什么就觉得C比A好呢？