高考英语语法问题1.By2013,the produnction in this area is expected to

1.By2013,the produnction in this area is expected to double_____of 2003.为什么用that不用one用that?
是因为that 代替的是produnction 不可数名词, one代替可数名词

2.The Chongming Island is China's ______为什么用third largest island不是序数词前要加the么为什么这里不加?
这里不加the 是因为有China's .比如 my first lesson我的第一堂课,当序数词前有修饰词时就不要the 了.

3.The students _______their lives if the female teacher hadn't saved them at the cost of her leg.这里情态动词为什么用should have lost不用must have lost?
should have done 是表示本该做而没做,本可能发生而没有发生这句话的意思是如果没有女老师以退为代价去救这些学生,他们可能已经失去生命.

4.No matter how little support you will get,you should insist on ____you believe is right.这里为什么用what不用which?这句句子是名从嘛?which不能用在名从里?
这题是宾语从句____you believe 是从句,意思是你应该坚持你相信的东西是正确的.believe后缺宾语用what,what 含义是内容,东西.which是哪一个.英语不要那么死,不要那么看重语法,从语义入手.