Only recently have investigators considered using these plants to clean up soil and waste sites that have been contaminated by toxic levels of heavy metals-an environmentally friendly approach known as phytoremediation.This scenario begins with the planting of hyperaccumulating species in the target area, such as an abandoned mine or an irrigation pond contaminated by runoff.
Only recently have investigators considered using these plants to clean up soil and waste sites that have been contaminated by toxic levels of heavy metals-an environmentally friendly approach known as phytoremediation.This scenario begins with the planting of hyperaccumulating species in the target area, such as an abandoned mine or an irrigation pond contaminated by runoff.
scenario 设想
hyperaccumulating 超积累
pond 池塘
phytoremediation植物修复
使用植物的设想始于在目标区域内的富集品种的种植，比如被遗弃的矿产或者一个被排放污染的灌溉池塘。
其中，矿产和池塘是目标区域的举例。
Before considering phytoremediation, hyperaccumulating species of plants local to the target area must be identified.
在考虑修复之前，富集品种一定会被鉴别。---错误，不是修复之前，是修复中。
考查句间关系
The investigation begins with an evaluation of toxic sites in the target area to determine the extent of contamination.
调查始于目标区域的决定污染程度的有毒位点的评估。----错误，目标内容不能决定污染的程度
考查谓语
The first step in phytoremediation is the planting of hyperaccumulating plants in the area to be cleaned up.
在修复植物中的第一步是将要清洁区域的富集植物的种植。
Mines and irrigation ponds can be kept from becoming contaminated by planting hyperaccumulating species in targeted areas.
在目标区域种植富集品种可以防止矿和灌溉池塘变污染。---错，不是防止变污染，是可以清洁这些区域。
考查谓语
use sth to do 和use sth for doing
两者都表示用…做某事,
to do sth表示目的,for doing sth表示用途.二者意思基本相同
I use my pen to write a letter.
I use my pen for writing a letter.