几道英语语法题（有加分）1.Scientistsestimatethatplantsandanimalslived3.5billionyearsago.A.asfarasB.asmanyasC.aslongasD.asoldas这道题为何不选A而选C?C不是「只要」的意思吗?2.Inthepasttwoyears,t

Question

几道英语语法题（有加分）
1.Scientists estimate that plants and animals lived ___ 3.5 billion years ago.
A.as far as B.as many as C.as long as D.as old as
这道题为何不选A而选C?C不是「只要」的意思吗?
2.In the past two years,the number of campus bookstores offering rentals ___ from a few dozen to 1500.
A.jumped B.had jumped C.is jumping D.has jumped
为何选D?不选B?
3.Seed plants - plants ___ from seeds - need water,sunlight and mineral to grow vigorously.
A.grown B.to grow C.to be grown D.having grown
为何选A不选B?
4.The Community Representative is a position designed for people with a strong desire to do something rewarding and ___ some money.
A.earned B.to earning C.earning D.earn
为何选D不选C?

Answer 1

1、as long as 还有长达.的意思
2、过去完成时表示过去发生过去完成且对现在无影响,现在完成时表示过去发生现在完成对现在有影响的,这道题说两年来.,说明满足后者.
3、grow有种植,使生长的意思,这里是说植物是被（人）种植的,所以用了被动做同位语.
4、这里的earn是和do并列的,不是和rewarding.
辛苦码字不容易,