几个英语单选,高分请务必说出理由,如果回答者说法有冲突,请说出对方答案错误的原因1.I tried to telepho

几个英语单选,高分
请务必说出理由,如果回答者说法有冲突,请说出对方答案错误的原因
1.I tried to telephone you last nigt,you__________
A.must be out B.must have been out C.are out D.will be out
2.It was _______ good book that it was bought by a film company
A.so a B.very a C.such a D.a such
3.The man ______ was here just now is a doctor
A.whom B.who C./ D.he

1.I tried to telephone you last night,you ______.
A.must be out B.must have been out C.are out D.will be out
答案：B
解题思路：
(1)观察前半句时态,tried和last night均是过去时,结合句意：昨晚我尝试联系你,但没联系上(你外出了),通过时态和句意不难判断出横线部分应该填一个和过去时相关或能表示过去发生的选项,首先排除C和D.
(2)接着分析选项AB：must be(一定是,必定是)表示对现在情况的推测,如：You must be my teacher.而must have done(一定已经…)表示现在对过去事物的推测,如：You must have finished your housework.根据两者用法不同可得知答案B.
技巧点拨：
做此类题目关键在于时态分析,根据时态再判断是对现在、过去或将来的推测即可.
考点拓展：
(1)must和have to区别:must表说话人的主观思想,have to表客观需要.Must没有时态变化,而have to则可变成had to.
(2)should have done和shouldn't have done用法：should have done(本该做某事却没做),shouldn't have done(本不该做某事却做了)
(3)could have done(本可以做某事却没做)
(4)would have done(本想做某事却没做)
(5)needn't have done(本不需做某事却做了)
2.It was ______ good book that it was bought by a film company.
A.so a B.very a C.such a D.a such
答案：C
解题思路：
(1)通过给出的4个选项判断出此题考的是so和such的用法,所以首先排除B.
(2)so和such用法：so + 形容词或副词,such + 名词(包括可数单数、可数复数及不可数).
例如：He is so tall that he can be a basketball player.(so + 形容词)
He ran so fast that he caught the first bus.(so + 副词)
It is such a good book that everybody likes it.(such + 可数名词单数)
They are such good books that everybody likes them.(such + 可数名词复数)
It is such good weather that everybody wants to go out.(such + 不可数名词)
(3)观察横线和good book,由于good是修饰book的,也就是说横线后实际跟的是个名词,排除A.因为such要放在名词前,排除D.
技巧点拨：
(1)做此类题目只需看横线后的几个词即可判断.注意：考题中经常会在名词前加形容词作修饰,就像It was ______ good book,如果只看横线紧跟的那个词good,就会错选和so相关的选项了.因此务必仔细观察形容词后是否还有名词,如果有名词,那么就要选和such相关的选项.
(2)例句2的run fast短语中,fast为副词而非形容词,类似结构还有：work hard,study hard,jump high等.又如：They worked so hard.(此句用so是因为hard在这是个副词)
考点拓展：
和so,such考点相同的还有what和how这组词.只需简单记住how用法与so一致,what用法与such一致即可.(即：how + 形容词或副词,what + 名词(包括可数单数、可数复数及不可数)
3.The man ______ was here just now is a doctor.
A.whom B.who C./ D.he
答案：B
解题思路：
(1)通过句型判断出此为限制性定语从句,首先排除D.
(2)判断先行词the man,由于the man放于从句The man was here just now.中充当主语,故横线中的关系词要用who且不可省略,排除C和A.
技巧点拨及考点拓展：
(1)做此类题目首先判断是限制性定语从句或非限制性定语从句(有逗号),若是非限制性定语从句,最先排除选项that.
(2)观察先行词：人==〉that/who(先行词在从句中充当主语时用who)/whom(先行词在从句中充当宾语时用whom)；物==〉that/which.另：先行词在从句中充当主语时,关系词不可省略；先行词在从句中充当宾语时,关系词可以省略.
例如：I came along with a cousin who has terrible earache.(先行词：cousin；从句：The cousin has terrible earache.先行词是人,放于从句中当主语,故不可省略)
I've just come to get some medicine (that) my grandfather needs.(先行词：medicine；从句：My grandfather needs the medicine.先行词是物,放于从句中当宾语,故可以省略)
(3)当先行词为物且属于下列情况时,关系词常用that而不用which：
(a)先行词是序数词或被序数词修饰
例如：The first book that I read last night was an English novel.
(b)先行词是形容词最高级或被最高级修饰
例如：This is the most interesting movie I have ever seen.
(c)先行词为不定代词如:all,much,anything,everything,nothing,something,none,the one等
例如：I have told them all (that) I know.
(d)如果先行词被the only,the very,the last,the same,any,few,little,no,all,one of,just修饰
例如：This is the only book that can be lent to you.
(e)如果有两个或两个以上分别表示人和物的先行词时(先行词既有人又有物),关系词只能用that
例如：There are sheep and men that can be seen on the hill.
(f)当主句是以which开头的特殊问句时,关系词只能用that
例如：Which is the book that he borrowed last week?
*定语从句考点除以上这些外,还有when,where和why的用法等,也需一并掌握.