题目内容

18.One of our rules is that every studentshall wear school uniform while at school.

分析 我们的校规之一是每个学生在校时都必须穿校服.

解答 答案:shall
解析:根据句意"我们的校规之一是每个学生在校时都必须穿校服"及所给英文提示可知,本题考查情态动词shall的用法,shall在本题中用来表示"(某种规定或命令)必须".

点评 本题考查单词填空,做此类题目时一定要根据所给的中/英文提示及句意确定所填词,再根据其他要求判断所填词的形式是否需要改变.

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Music tells us who we are,because music is an expression of the beings who create it.It reflects their thinking and values,as well as the social environment it came from.Rock music represents a lifestyle just as surely as does a Schubert song.The jazz influence is obviously American because it came from American musical traditions.Music expresses our character and values.(53)A
Music provides a kind of perception(感知)that cannot be acquired any other way.(54)B The arts explore the emotive(情感的) meaning of the same phenomenon.We need every possible way to discover and respond to our world for one simple but powerful reason:No one way can get it all.
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B.They carry many genes that keep tumors from developing
C.Certain genes in their body kill existing tumors
D.Their genes suffer no DNA damage
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A.Extreme weather              
B.Cells killing themselves
C.Human behavior              
D.A risk of deadly tumors
6.What does the underlined expression"this phenomenon"on the sixth paragraph refer to?A
A.The risk of cancer is not related to body size
B.Larger animals have protection from TP53
C.Larger animals suffer the same risk of cancer as smaller ones do
D.The larger animals are,the bigger risk of cancer they have
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A.depending on nature is not enough to fight against cancer
B.the TP53genes have proven useful in stopping cancer in mice
C.this new treatment is more effective than the present ones
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