1.Anna was reading a piece of science fiction,completely _ to the outside world.A.having been lost B.to be lost C.losing D.lost2._ what to do with the urgent business,he stayed awake all night.A.Leaving wondering B.Being left wondering C.Bein

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1.Annawasreadingapieceofsciencefiction,completely_____totheoutsideworld.A.havingbeenlostB.tobelostC.

1.Anna was reading a piece of science fiction,completely _____ to the outside world.A.having been lost B.to be lost C.losing D.lost2._____ what to do with the urgent business,he stayed awake all night.A.Leaving wondering B.Being left wondering C.Bein
1.Anna was reading a piece of science fiction,completely _____ to the outside world.
A.having been lost B.to be lost C.losing D.lost
2._____ what to do with the urgent business,he stayed awake all night.
A.Leaving wondering B.Being left wondering C.Being left to wonder
D.Left wondering
为何C不行?
3.He was suddenly _____ with a strange illness when he was about to finish his work.
A.seized B.caught C.infect D.controlled
4.The earthquake and the heavy losses _____ contributed to disabled the famil to afford his education.
A.that B.it C.what D.which
这题完全没看懂.
5.-Do you smoke?
-No,I don't.But I used to.It's two years since I ______ .
A.smoked B.didn't smoke C.have smoked D.began to smoke
为何不是完成时?
以上5题麻烦给我解释一下原因.

1.Anna was reading a piece of science fiction,completely _____ to the outside world.A.having been lost B.to be lost C.losing D.lost2._____ what to do with the urgent business,he stayed awake all night.A.Leaving wondering B.Being left wondering C.Bein
5题如采纳有120分,问题还有答案和疑问,愿意回答,但请稍等,我回答较仔细.会不断修改,待续
1.Anna was reading a piece of science fiction,completely _____ to the outside world.
A.having been lost B.to be lost C.losing D.lost
答案是D
译：安娜在看一篇科幻小说,完全感觉不到外部世界.
析：考查非谓语动词作状语.其逻辑主语是主句主语即安娜.一般说sb.is/was lost in sth.说某人迷失在.中.并不是说sb.loses sth.(某人丢了某物）,所以排除C.是同时发生的伴随情况而非之前发生的动作或存在的情况,排除A.不定式作状语表示未来和目的,B不妥.排除.
1991年考研英语真题
19 .Anna was reading a piece of science fiction,completely _ to the outside world.
A.being lost B.having lost C.losing D.lost
此题有所改动.
补充：be lost to和be lost in的区别：
be lost to:
a.感觉不到
例句与用法:
1）.My son was lost to me when he married.
我儿子结婚以后,就不再听我的了.
2）.The opportunity was lost to them.
他们已失去了这个机会.
be lost in:
a.忘乎所以(迷路)
1）.Much of the goodness in food may be lost in cooking.
食物在烹调中可能失去许多养分.
2）.The old man was lost in thought and did not hear us come in.
这个老人凝神沉思,没有听见我们进来.
2._____ what to do with the urgent business,he stayed awake all night.
A.Leaving wondering B.Being left wondering C.Being left to wonder
D.Left wondering
答案是D,为何C不行?
答：考查非谓语动词短语作状语,放在主句的前面.其逻辑主语是主句的主语He,“他”和leave是被动关系,排除A.leave sb.wondering ...,没有leave sb.to do sth.的用法,排除C.being left和left都表示被动.前者表示“正在进行的动作,与主句谓语动作同时发生的动作”,后者强调被动,不表示进行.而leave sb.doing sth.中的leave无进行意味,所以选D
译：不好译,因为人工造句,不知道是谁或什么事leave him wondering ...
其实这句话改为：Wondering ...,he.就可以了：
由于不知道如何处理这个紧迫的事务,他彻夜未眠
3.He was suddenly _____ with a strange illness when he was about to finish his work.
A.seized B.caught C.infect D.controlled
答案是A
答：此题考词汇.C应用过去分词infected ,且这不是一个突然的动作.D be controlled by sth.介词搭配首先不当.B.be caught in sth.也是介词搭配出了问题.A 的用法其实不熟悉.排除法剩下的是它.确定它正确还需要查词典,找例句.
译：就在他快要完工时,突然得了一种怪病.
评：好象题句写反了,一般句型是：sb.was about to do sth.when suddenly sth.unexpected happened.
本题有待进一步考证.
4.The earthquake and the heavy losses _____ contributed to disabled the family to afford his education.
A.that B.it C.what D.which
答案是B,这题完全没看懂.
答：此题句确实不好懂.主句结构是：A and B (定语从句） disabled sb.to do sth.
译：这场地震及其引起的惨重损失使家里不能供他上学.
析：it contributed to 是省略了关系代词的定语从句.it指代这场地震.定语从句还原就是：It (=the earthquake contributed to the heavy losses) 省略了的关系代词that指代先行词the heavy losses,在从句中作contributed to的宾语 contributed to相当于led to/resulted in,导致.
5.-Do you smoke?
-No,I don't.But I used to.It's two years since I ______ .
A.smoked B.didn't smoke C.have smoked D.began to smoke
答案是A,为何不是完成时?
答：最后一个是句型：It is (= has been) + some time since sth.happened.自从某事发生以来,时间已经有多久了.而since后一般短暂性动词,用延续性动词很少的,翻译时要反过来（有的语法书上有所论及,其实是人工造句,不要全信,有时间别贴讨论）
译：你抽烟吗?
不.我不抽.但我以前曾经抽过.自从我戒烟以来,到现在已经有两年了.
如果你问：为什么不是B,为什么不是D,为什么since I smoked 要译为自从我戒烟以来,不是自从我抽烟以来,就又有很多可讲了.你另贴问,另贴回吧.

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1。貌似是固定搭配 lost to the world,因投入没有注意到周围的事
2.Being left不恰当，根据语态是left sth、sb doing表一种状态。被留下来思考，此处强调的是wonder的过程，且leave是一个短暂性动词，不能这么用
3也是搭配问题，caught 用作被动常接by/in，infect其实可以同with搭配，但没用被动态，D你应该不会考虑吧？
4意思好想知道，但我也不会，真抱歉。意思：地震和造成的严重损失导致他们家付不起他的学费
5。这个我们竞赛班讲过，是特殊句式来的，有点抽象。只能再给你一个例句：She used to live here,but she has left.It's 5 years since she live here.直接就可以用来表示她走了5年，我觉得还是去问老师比较好，这个句型很有用
希望帮得上忙

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本人已经大学毕业了，至于语法记忆已经不深刻了，现在做题大部分时候凭语感
1，可以理解为后句是对前句的补充，Anna was reading a piece of science fiction，其后说completely _____ to the outside world。想下completely能修饰什么词？它是个adv.当然是形容词；
或者这样想，后面补充的是Anna的状态，她是主动的，不是被动的，前句已经有了was做系动词，补充的就是形容词了
2此种选择，差别比较细微，很难抉择。不知可否这样样想，he stayed awake all night.
原因是： Left wondering what to do with the urgent business。如果是c选项那么Being left to wonder what to do with the urgent business。加上主语，c选项的意思就会不同成为He was left to wonder ……
3首先BD排除，没有这种搭配。集中在AC上，都有感染疾病的用法，但seize更常用，infect主要用被动语态
4看不懂不是你的错，不看答案，我也完全没搞懂结构。
The earthquake and the heavy losses 如果看成是主语，那_____ contributed to disabled the famil to afford his education.填入代词ACD中任何一个之后，动词是contributed，而且只有一个，这句话就变成一个主语加上一个从句，没有意义了。选B我只能理解为这是中式英语，使用it来代替真正主语。
5有这个疑问很合理，因为since后是经常加完成时态的，但这不是绝对的，要区分。
选A的意思即：离我上次吸烟有两年了。但C表达的是完成时态，那么就不能理解为是他上次最后一次吸烟的完成时态
纯萃个人理解，希望对你有帮助
你的提问有水平，我觉得你是个学习还不错的学生，加油！
高考不难，需要的是耐心和细心！

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1、lost在这里是形容词，这句话地意思是Anna在读一篇科幻小说，完全忽视了周围的一切。Completely是副词，副词一般修饰动词和形容词，四个选项中很明显只有D可以做为形容词。
2、Left wonder 应该是个固定短语吧。
3、be seized with 是固定短语，有被、、侵袭的意思，在这里很明显是被疾病侵袭，就是生病了。而后面三个都没有这个意思，也不会和with 搭配。
4、这里可能是it 做形式主语，起强调作用。（仅个人理解）这句换的意思是地震及其巨大的损失导致这个家庭不能支持他的教育。
5、since 有副词，介词，连词的词性，只有在当做副词时才会跟完成时。下面是Since 的用法：
副词 ad. (常用于现在完成时或过去完成时)
1.此后;从那时到现在
She left school three years ago and has worked as a nurse ever since.
她三年前毕业,从那时起便一直当护士。
2.之前,以前
介词 prep.
1.(常用于现在完成时或过去完成时)自...以来,从...至今
I haven't heard from him since last year.
我自去年以来未曾收到过他的信。
连接词 conj.
1.(常用于现在完成时或过去完成时)自...以来,从...至今
It's been ten years since they married.
他们结婚到现在已经十年了。
She has been living a hard life since her husband died.
她自从丈夫死后,一直过着艰苦的生活。
2.既然;因为,由于
He must have taken the book since it isn't here.
他一定是把书拿走了,因为书已不在这里了。
Since it is so hot, let's go swimming.
既然天气这么热,我们去游泳吧。

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1、后半句做伴随状语，用过去分词的形式在此相当于一个形容词
2、根据句意是被留下来思考，而且wondering作left的宾语补足语，更强调left后要做事情的状态，而不是目的，故D选项较合适
3、被疾病侵袭用seized很合适，这个是词语的用法，你查查字典就知道了，如果你知道seized的意义后其他的选项你都不会选。不能仅仅停留在seize本身最基础的意思
4、It在这里做形式宾语，代The earthquake and the heavy losses
5、看来since的用法你没搞清楚啊，这里不是通常所说的since+完成时的用法，而是结合动词的属性来看，smoke是非延续性动词，since+非延续性动词表示的意思是“（本句）已两年都没抽烟了”，正符合句意，since+延续性动词的用法就是平时你见到的用法。这里考查的就不是你平时考虑的用法。
如有不懂可进一步问我。

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