1.If city noises ____ from increasing,people ____ shout to b

1.If city noises ____ from increasing,people ____ shout to be heard even at dinner．
　　A． are not kept；will have to
　　B． are not kept；have
　　C． do not keep；will have to
　　D． do not keep；have to
选A noises是不可数名词为什么可以加ARE
5.Rainforests ___ and burned at such a speed that they will disappear from the earth in the near future.
　　A.cut B.are cut
　　C.are being cut D.had been cut
选C
8.Great changes ___ in the city,and a lot of factories ___.
　　A.have been taken place; have been set up
　　B.have taken place; have been set up
　　C.have taken place; have set up
　　D.were taken place; were set up
选B
10.--- Look!Everything here is under construction.
　　--- What’s the pretty small house that __ for?
　　A.is being built B.has been built
　　C.is built D.is buildiNG
选A
13.I have no more letters ____ ,thank you．
A． to type B． typing
　　C． to be typed D． typed
　　14.Take care!Don’t drop the ink on your shirt,for it __ easily.
　　A.won’t wash out B.won’t be washed out
　　C.isn’t washed out D.isn’t washing out
　　15.Nobody noticed the thief slip into the house because the lights happened to ___.
　　A.be put up B.give in
　　C.be turned on D.go out
13-15选CAD
18.The squirrel was lucky that it just missed ___.A.catching B.to be caught
　　C.being caught D.to catch
选C

1noise既可数也不可数,这道题中是可数的,城市噪音有多种,表示种类,语法是if的条件状语从句,公式是主将从现
5雨林砍和烧都是被动,排除A,再看时态,需要现在被砍的意思,
8发生没有被动,排除AD,工厂建立是人去建,所以工厂是被建,
10翻译整句话,那个特别小的房子建来做什么,上句说一切都在建设中,需要正在被建设的意思
13这是个经典题型,翻译：我没有更多的信件要打,按我们想得,应该用主动,但是是错的,因为这道题中不是我去打这个信件,而是别人打,所以信件被别人打,用被动,而且时间是将要,用todo表示.对比I have a lot of things to do .我能解释的只有这些,如果还是不懂,就找老师问清楚,这个知识点很重要.
14不及物动词无被动,（不知道我记错没有),时态上,墨水还没弄脏,用将来时态
15翻译哈选项,再代入题就可以了,D熄灭,没有知道小偷悄悄的跑进房间,因为灯刚好熄灭.
18考时态和语态,翻译：松鼠很幸运的没有被抓住.被抓,被动,排除AD,was是过去,排除B
做单选通常用排除法.希望对你有所帮助