川大《大学英语(四)0004》19春在线作业21答案

Can you _______ how to do it?

(A)figure in

(B) figure out

(D) figure among

正确答案：B
解答参考：B figure out 弄明白【译文】你能否弄明白怎麽做?

有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他( )。

A.至少答对一道题 B.至少有三个小题没答

C.至少答对三个小题

D.答错两个小题

正确答案：D
设答对数为x,答错数为y,不答数为z,则：

　　8x+0y+2z=20。

　　A选项表示x=1,那么得出z>6,不正确。

　　B选项表示z可能为3,4,5,将3,4,5代入式中全不正确。

　　C选项表示x可能为3,4,5，代入式中也全不正确。

　　D选项表示y=2,代入式中与题所述并不抵触，表示很有可能，故选D。

小伟参加英语考试，共50道题，满分为100分，得60分算及格。试卷评分标准为做对一道加2分，做错一道倒扣2分，结果小伟做完了全部试题但没及格。他发现，如果他少做错两道题就刚好及格了。问小伟做对了几道题？（）

A. 32
B. 34
C. 36
D. 38

答案：D

解析：

简单方程问题。假设小伟做对了x道题，则做错的题目为50-x，根据题意有：2 (x+2)-2(48-x) = 60，解得x= 38，正确答案为D。

A. 32
B. 34
C. 36
D. 38

答案：D

解析：

简单方程问题。假设小伟做对了x道题，则做错的题目为50-x，根据题意有：2 (x+2)-2(48-x) = 60，解得x= 38，正确答案为D。

She tried hard,__she was unsuccessful.

A.therefore
B.but
C.or
D.unless

答案：B

解析：

本句句意是：她努力试了，但没有成功。

大学英语(四)000418春在线作业2-0001试卷总分:100 得分:0一、单选题 (共 40 道试题,共 80 分)1.Regardless of how hard she tried, Jennie couldnt figure out what her boyfriend thought.A.珍妮努力的想都想不出她的男朋友在想什么。B.珍妮想的多么努力啊，但是还是揣摩不透她的男朋友是如何想的。C.尽管珍妮很努力，但是还是不明白她的男朋友在想什么。D.不管珍妮如何努力，都揣摩不透她的男朋友是如何想的。正确答案:D2. Do you prefer tea or coffee? _A.Milk.B.Yes, I like tea.C.Coffee, please.D.None.正确答案:C3.When Susan and I _ on an article for the school newspaper, we found it difficult to work together.A.compiledB.gatheredC.collaboratedD.joined正确答案:C4.There _ a book and some magazines on the desk.A.isB.areC.haveD.has正确答案:A5. Do you think I could borrow these magazines? _A.No, you cant.B.You could borrow other magazines.C.The magazines arent here now.D.Im sorry, but the magazines you want are out.正确答案:D6. Have you got a table for four, waiter? _A.Welcome to our restaurant.B.Yes, sure. This way, please.C.We have looked the seats.D.Here are the menus.正确答案:B7.It was on the beach _Miss White found the kid lying dead.A.thatB.thisC.itD.which正确答案:A8.The publisher and the author _ made an agreement.A.isB.hasC.areD.have正确答案:D9.Physics _ always my strong point.A.isB.areC.beingD.to be正确答案:A10.Peter will _ as managing director when Bill retires.A.take offB.take overC.take onD.take in正确答案:B11.He put forward a theory, _ of great importance to the progress of science of technology.A.I think which isB.which I think isC.which is I thinkD.I think it is正确答案:B12. Hi, Im glad to see you. _A.Thank youB.Me, tooC.My name is MaryD.Im glad to hear that正确答案:B13. I didnt know my identity card（身份证）was needed, sir. _A.Thats sorry.B.I dont believe you.C.Sorry, but thats no excuse.D.You cant say that.正确答案:C14.His answer is not correct, and _.A.neither am IB.either is mineC.neither is mineD.mine is neither正确答案:C15.We consider _ the instrument be adjusted each time it is used.A.that it necessaryB.it necessary thatC.necessary thatD.necessary of it that正确答案:B16.The shops offer almost everything _ ranges from cheap to expensive.A.thatB.whichC.whatD.It正确答案:A17.We moved to the front row _ we could hear and see better.A.so asB.so thatC.becauseD.such that正确答案:B18.The young lady coming over to us _ our English teacher; the way she walks tells us that!A.must beB.can beC.would beD.could be正确答案:A19.Only after I had reached the supermarket _ that I had forgotten to take my purse with me.A.I had realizedB.I realizedC.I have realizedD.did I realize正确答案:D20. I think he is a good lecturer. _A.Sorry, it doesnt matter.B.So do I.C.Yes. Its a good idea.D.I dont mind.正确答案:B21.Hello! Can I get a seat on the 8 pm flight to Detroit? _.A.Hello! International AirlineB.Youd better look up the schedule firstC.Im sorry, but its completely bookedD.Im afraid you have to change正确答案:C22. Down the entrance hall of the school walk four eighth-grade students. Each one is carrying a small basket with a single egg inside. Soon more students join them-each one of them is also carrying a basket with an egg. The eggs in a basket are part of a new school

有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他（　　）。

A.至少答对一道题
B.至少有三个小题没答
C.至少答对三个小题
D.答错两个小题

答案：D

解析：

设答对数为x,答错数为y,不答数为z,则：
8x+0y+2z=20。
A选项表示x=1,那么得出z>6,不正确。
B选项表示z可能为3,4,5,将3,4,5代入式中全不正确。
C选项表示x可能为3,4,5，代入式中也全不正确。
D选项表示y=2,代入式中与题所述并不抵触，表示很有可能，故选D。

有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他（　　）

A.至多答对一道题

B.至少有三个小题没答

C.至少答对三个小题

D.答错两个小题

答案：D

解析：

此题只需要清楚一个例子，就是要得20分可以是答对两道题，答错两道，不答两道这么一种可能情况。然后，应用此例子逐个排除。首先A项说至多答对一道题，可见可以排除掉；B项至少三道没有答，意思是有三道或者三道以上没答，可以排除；C项至少答对三道，也可以排除；随后得出D项是正确答案。

有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他( )

A.至多答对一道题
B.至少有三个小题没答
C.至少答对三个小题
D.答错两个小题

答案：D

解析：

有一份选择题试卷共6道小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分。某位同学得了20分，则他( )。

A、至少答对一道小题
B、至少有三道小题没答
C、至少答对三道小题
D、答错两道小题

正确答案:D

有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他（）

A、至多答对一道题
B、至少有三个小题没答
C、至少答对三个小题
D、答错两个小题

正确答案:D

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川大《大学英语(四)0004》19春在线作业21答案

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