They used a lot of and cheaper.They can do __4__ difficult work.They used a lot of energy(能量).Only __2__ people were interested __3__ them.Today computers are smaller and cheaper.They can do __4__ difficult work.Computers become important __5__ m

They used a lot of and cheaper.They can do __4__ difficult work.They used a lot of energy(能量).Only __2__ people were interested __3__ them.Today computers are smaller and cheaper.They can do __4__ difficult work.Computers become important __5__ m
They used a lot of and cheaper.They can do __4__ difficult work.
They used a lot of energy(能量).Only __2__ people were interested __3__ them.Today computers are smaller and cheaper.They can do __4__ difficult work.
Computers become important __5__ many reasons(原因).They work faster than man and make few mistakes.They can "remember" much information.A computer can do millions of problems __6__ a few seconds.A person might __7__ years to work out so many problems.
People now use computers in nearly every kind of work.Computers are very useful and the use of computers __8__ growing.More computers mean more jobs for people,
2.A.few B.little C.a few D.a little
3.A.in B.with C.on D.by
4.A.and B.so C.but D.or
5.A.in B.by C.for D.on
6.A.with B.on C.at D.in
7.A.need B.get C.want D.make
8.A.are B.is C.has D.have
这几个题我全错了嘿嘿.答案是CABCDAB.但是我不知道为什么会填呀.能不能给我详细的说一下呢?

They used a lot of and cheaper.They can do __4__ difficult work.They used a lot of energy(能量).Only __2__ people were interested __3__ them.Today computers are smaller and cheaper.They can do __4__ difficult work.Computers become important __5__ m
2.few / a few用来修饰可数名词,few表示否定意义,没有,几乎没有；
a few表示有肯定意思,有几个,少数.little / a little用来修饰不可数名词,little表示否定意思,没有,几乎没有.a little 表示肯定意思,有一点儿.句中意思是只有少数人.people可数,用a few.
3.be interested in 对...有兴趣,固定搭配.
4.and：和,so：多么,这么,but：但是,or：或者,联系句中意思,它们可以完成多么难的工作.
5.只有for有因为的意思,for...reason,因为...原因,固定搭配.
6.小时,分,秒都搭配介词in.
7.need：需要,get：得到,want：想要,make：做,制定,使得,获得,成为,联系句中意思,需要几年去算出这么多问题.
8.主语是the use of computers,计算机的使用,不可数,用is.

2 a few 固定搭配表示少许 3 be interested in 词组不用说了 4 so difficult 表示这么难的工作，其他用不上 5 for 因为 ，感觉in也可以，其他的就不符合了，表示电脑重要有很多原因 6in a few seconds 在几秒这内，用in表示将来 7 需要，人需要花几年时间才做到电脑做的 8 computers 是不可数复数，所以用is...

全部展开

2 a few 固定搭配表示少许 3 be interested in 词组不用说了 4 so difficult 表示这么难的工作，其他用不上 5 for 因为 ，感觉in也可以，其他的就不符合了，表示电脑重要有很多原因 6in a few seconds 在几秒这内，用in表示将来 7 需要，人需要花几年时间才做到电脑做的 8 computers 是不可数复数，所以用is

收起