UC知道英语初一题目，谢谢！
来源：百度知道 编辑：UC知道 时间：2024/05/02 19:46:59
1.all the trees here need ( ),especially in such a dry season.
a.to water b.watering c.being watered d.to be watering
2.something should be done to prevent our environment from ( ).
a. to be polluted b.polluting c.being polluted d.to pollute
3.great changes ( ) in Shenzhen in the past 20 years.
a. were happaned b.have been happened c.took place d.have taken place
解释一下麻烦
保证正确才可以啊！！！
a.to water b.watering c.being watered d.to be watering
2.something should be done to prevent our environment from ( ).
a. to be polluted b.polluting c.being polluted d.to pollute
3.great changes ( ) in Shenzhen in the past 20 years.
a. were happaned b.have been happened c.took place d.have taken place
解释一下麻烦
保证正确才可以啊！！！
1
b
need有两种用法，做情态动词和实义动词。
是情态动词还是实义动词，由句义决定。
情态动词时：need不必与主语保持性态一致，且无过去形式；
实义动词时：同try、want。与主语保持性态一致，后接to do。或接doing。如the window needs repairing。或the window needs to be repaired。但有些地区，尤其是英格兰岛、苏格兰地区，还常用the window needs repaired。
2
c
prevent...from doing sth.
当然应该是prevent (our environment) from being polluted.
3
d
take place=happen=occur，都是主动态，表示某事发生了，而不是某事被促成发生了。
in the past 20 years.表示句子该用完成时。
1.D 2.C 3.B
我的绝对正确，时态问题，很简单的。
BCD
第一位大哥(大姐)是对的.别人都在捣糨糊!!
1B 2C 3D
1a