The measures _______ further pollution in the river will come into effect soon.

A. aiming at preventing B. aiming to preventing

C. to aim at preventing D. aimed to prevent

10. drag: 拖, 拉, 困难或吃力地往前拉.

The boss was dragging a heavy load. 马拖曳着重载.

She dragged herself out of bed, still half asleep.

她挣扎着起了床, 仍然睡眼惺忪.

11. the depth(s) of the ocean海洋深处; the depth(s) of the jungle丛林深处; the depth(s) of the country内地, 穷乡僻壤; the depth(s) of winter隆冬; the depth(s) of one's heart心灵深处; the depth(s) of despair绝望的深渊;

The pond is no more than a meter in depth.

I'm trying to deepen the understanding of local customs and traditions.

The lake is over 20 meters in depth so we were all moved deeply by the man who dived deep into the lake to save the little boy. (deep)

12. at any moment任何时候, 随时;

the moment that一....就......;

at the last moment在紧要关头, 在最后关头;

at that moment在那时;

for the moment目前, 暂时;

in a moment马上, 立刻;

for a moment片刻, 一会儿;

13. drag in把....拉进去;

catch all in one drag一网打尽;

drag on (out)拖延, 使拖延;

drag oneself alone拖着脚步走;

drag it离开, 离职, 停止讲话;

drag sb. down使人感到委屈或沮丧;

a drag on progress阻碍进步的因素;

14. urge sb. to do sth.催促某人干....., 极力主张....., 紧急的, 冲动, 迫切的，

They urged us to join their company.

I had a sudden urge to hit him. 我突然很想凑他一顿.

an urgent appeal for information 紧急呼吁提供信息

in urgent need of = be in great need of 急需

They urged that our government (should) take urgent actions (应当采取紧急措施) against terrorists.

15. It + be + adj. + to do sth. / doing / that.....

It + be + adj. + for / of sb. to do sth.

It appears (看上去) / seems (好像) / happens (碰巧) + that 从句.