1.It is said that___umbrella was invented over four thousand

1.It is said that___umbrella was invented over four thousand years ago by Chinese people.
A.a B.an C.the D./
2.She is ___ careful as I,but I'm ___ than you.
A.as;much careful B.so;more careful C.as;much more careful
D.so;very careful
3.Uncle Wang can make his kite ___ higher in the sky.
A.fly B.flies C.to D.flying
4.Our monitor is always ready ___ others.
A.help B.helps C.to help D.helping
5.I wondered ___ our teacher did that for.
A.that B.if C.what D.why
6.I didn't know ___ and ___.
A.what's his name;how old he is B.what his name was;how old he was
C.what is name is;how is he old D.that his name is;he was how old
7.My friend hasn't decided ___ on a trip to Wuxi on holiday.
A.if he goes B.when will he go C.if he'll go D.where he go
8.He thought ___ relaxing to spend the weekend fishing near the lake.
A.it's B.that C.that is D.it
9.—Maybe I ___ her before.
—But where ___ you ___ her?
A.met;have;met B.have met;have;met C.met;did;meet
D.have met;did;meet
10.Great amounts of waste water ___ poured into the river from the factories two years ago.
A.was B.has been C.were D.had been
11.They're ___ little birds that they can't eat ___ much food.
A.so;so B.such;such C.so;such D.such;so
12.—Has the local government had the new school ___?
—Yes.They had the workers ___ it last month.
A.build;built B.built;build C.to build;built D.built;to build
13.Diana regretted ___ him the truth,but it was too late.
A.to tell B.telling C.told D.had told
14.I found her ___ in bed when I got home,crying.
A.lying B.was lying C.to lie D.lied
麻烦大家说下理由

1.c 泛指时单数用the,复数或不可数名词/抑或抽象名词不用冠词
2.c as ...as用于肯定句式,so ...as用于否定句式,排除BD；有than肯定选比较级,只有C有more,much可以修饰比较级,所以much more careful
3.a make sth.do 这是固定用法,看多了就记住了
4.c be ready to do也是固定用法,或者说be+形容词+to do是语法要求
5.c 宾语从句,前导词根据它代替的词在从句中的角色选择,换成正常语序是my teacher did that for (前导词)所以选名词性前导词what,for what=why
6.b 宾语从句除了引导词以外的语序是陈述语序,然后根据时态一致选B
7.c 首先后面地点、时间都有了,BD排除,然后hasn't decided表示还未发生,这又不是一般现在时的特殊用法,所以选将来时C；但这个句子里面不应该用will,用should比较好,自己造句写作文的时候注意一下
8.d think it adj.to do是固定用法,后面的adj.to do是it的表语
9.d before标志用现在完成时；有具体的时间地点用一般过去式
10.a 不管用的是amounts还是amount,水肯定是单数的,因为是物质名词；有具体的时间,用一般过去式
11.d 老师会告诉你Such修饰名词,so修饰形容词,但这种解释等于没解释,因为两个口后面都是一个形容词加一个名词.这句话就是一种整体语感.they are birds是主干,虽然强调的是little,但little修饰的也是birds,所以用such.如果换成The birds are so little的话,这里就用so了; can't eat much food这里面的much是不能去掉的,否则整个意思就变成了不能吃东西,而不是吃不了这么多,所以这里much是重点,用so.
12.d 这里考have sth.done和have sb.to do这两个用法.也是语感,第一个是完成了什么东西,第二个是让某人去做什么
13.b regret doing是做过的事情,regret to do是正要做的,后面说了太晚了所以是telling
14.a 空里的词肯定是表示状态的,不能是动作的,所以应该是形容词形式或ing形式,因为“她”是her,是宾语,如果是she的话B就是正确的了