新概念3课后习题
题目
新概念3课后习题
6.It immediately ran away when she saw it
=_______,it immediately ran away.
(a)Observing her (b)On being observed (c)Having been observed (d) On her being observed 选B,为什么不选C?
7.Pumas never attack a human being except _______ cornered.
(a)they are (b)being (c)that they are (d)when they are
选D,为啥不选B?
12.A private collector is a man who collects_______.
(a)for his own benefit (b)on his own (c)in private (d)unknown to public
选A为什么不选B、C?
5.It was not until the thirteenth stroke _____the bell stopped.
(a)before (b)when (c)so that (d)that
选D,为什么?
12.Still,I'm glad the bell is working again.
=____,I'm glad the bell is working again.
(a)Yet (b)Good (c)Just the same (d)Even now
选C,为什么不选A?
第三课 词汇
Give another word or phrase to replace the following words as they are used in the passage.
1.An American team explored a temple...explored:____________
2.The city at one time must have been prosperous.prosperous:_________
3.Clay fragments of fifteen statues were found.fragments:__________
4.was found among remains dating from fifteenth century B.C..
4.The city at one time must have been prosperous.
=THe city had once known _________.
(a)a prosperity (b)the prosperous (c)prosperity (d)the prosperity
选D,为什么不选C?
6.They found ______that the goddess turned to be a .
(a)surprisingly (b)with surprise (c) to their surprise (d)a surprise
选C,为什么不选D?
11.The goddess ______ to be a very modern-looking woman.
(a)appeared (b)proved (c)resolved (d)change
选B,为什么不选A?
我有自学书啊,至于你说的练习详解我们这边貌似没有啊。
答案
你可以从书店买一本或者从图书馆借一本也可以.你就知道答案为什么选这个了.
你这道题原题都写错了. 书上原题:见下
6._______immediately ran away.(lines 8-9)
(a)Observing her (b)On being observed (c)Having been observed (d) On her being observed 选B.为什么不选C?
[解释]f分词短语可用于表达时间状语,而且可用于after、before、since、when、while、whernever、once、until、on等词之后,但是该分词所示动作需由句子的主语做出,即句子的主语既作出主要谓语动词表示的动作,又做出该分词表示的动作.就本题中的"observed"而言,它并非"it"(puma)做出的动作,而是被动语态形式.此外,在使用"on+分词短语"结构时,可以表示出"一.就."的含义,这与句子"immediately ran away"的关系相一致,因此(b)On being observed 为正确选项.而在(c)Having been observed中,"observe"所用时态表示与"ran away"有较长的时间间隔,而与修饰"ran away"的副词"immediately(马上,立刻)"相矛盾; 加我好友吧.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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