题目内容

10．我发现要理解这三幅不同风格的绘画作品很难．（find…difficult to do）I find it difficult to understand the three paintings with different （painting） styles．．

分析 我发现要理解这三幅不同风格的绘画作品很难．

解答 答案：I find it difficult to understand the three paintings with different （painting） styles．
考查it做形式宾语．句子里it做find的形式宾语，代指动词不定式 to understand the three paintings with different （painting） styles．，find…difficult to do表示"发现做某事是困难的"．

点评 考查汉译英．it"作形式宾语时的几种特殊结构英语中，当动词不定式、动名词或从句在句中充当宾语且其后又带有宾语补足语时，习惯上要在宾语补足语前使用一个没有具体意义的形式宾语it，而将真正的宾语移到补足语的后面，构成"动词+it+宾语补足语+不定式（动名词或从句）"结构．如：She felt it her duty to take good care of them．她感到好好照顾他们是她的责任．I think it no good going there now．我认为现在去那里没有好处．The headmaster has made it clear that the school meeting will not be put off．校长说得很清楚校会不会推迟．

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19．The technique can lead to new ways to produce medicines，the researchers from the universities of Istanbul and Hawaii hope．
As part of an effort to improve treatments for life-threatening illnesses，a team of scientists have created rabbits that glow（发光） in the dark．
Their efforts produced two rabbits out of a litter of eight that went from being a normal，fluffy white to glowing green in the dark．The rabbits were born at the University of Istanbul as part of a collaboration（合作） between scientists from universities in Turkey and Hawaii．
The rabbits glow to show that a genetic manipulation technique can work efficiently，though the specific color is more cosmetic than scientific．"The green is not important at all-it's just a marker to show the experiment can be done successfully，"said University of Hawaii associate professor Stefan Moisyadi．
To produce the glowing effect，researchers injected jellyfish DNA into a mother rabbit's embryos．Those altered embryos（胚胎）．Those altered embryos were then inserted back into the mother．Similar experiments have resulted in glowing cockroaches and cats．
Eventually，the researchers hope the technique can lead to new ways to produce medicines，Moisyadi said．"The final goal is to develop animals that act as barrier reactive to produce beneficial molecules in their milk that
can be cheaply extracted，especially in countries that can't afford big pharma plants that make drugs，that usually cost $1bn to build，and be able to produce their own protein-based medication in animals，"Moisyadi said．
The rabbits are expected to have the same life span as their non-glowing counterparts（副本），but Moisyadi said he understands people can object to this kind of experimentation involving live animals．
"To the people against，I say：think about，what are the benefits and what are the injuries？"Moisyadi said．"And if the benefits outweigh the injuries，let's go with the benefits．"
Moisyadi，a native of Turkey who is now with the University of Hawaii，started developing the project in 2006，and researchers are now waiting to see if pregnant sheep produce similar results．

21．Moisyadi's attitude towards this kind of experiment isC．
A．doubtful．
B．indifferent．
C．supportive．
D．objective．
22．How did glowing effect produce？D
A．It was just the result of genetic selection．
B．Put a light into a mother rabbit's embryos．
C．Injected glowing cats DNA into a mother rabbit's embryos．
D．Injected Jellyfish DNA into a mother rabbit's embryos．
23．The final goal of this research isD．
A．To make animals cuter．
B．To make nights brighter．
C．To produce all kinds of glowing animals．
D．To produce beneficial molecules in animals'milk．
24．What can we learn according to the passage？C
A．The life span of glowing rabbits is much shorter than that of non-glowing ones．
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C．Scientists have created glowing cockroaches and cats before．
D．Three rabbits out of eight can glow in the experiment．
20．---What a pity？He has missed such a good chance．
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