0  390277  390285  390291  390295  390301  390303  390307  390313  390315  390321  390327  390331  390333  390337  390343  390345  390351  390355  390357  390361  390363  390367  390369  390371  390372  390373  390375  390376  390377  390379  390381  390385  390387  390391  390393  390397  390403  390405  390411  390415  390417  390421  390427  390433  390435  390441  390445  390447  390453  390457  390463  390471  447090 

27.Even on a cold day he prefers ______ out to play football ______at home.

    A.going;rather stay                                B.going;to staying

    C.to go;rather than staying        D.to do;rather than to stay

试题详情

26.It was in the lab______ was taken charge of by Professor Zhang ____ they did the experiment.

    A.where, that  B.which, where C.that, where   D.which, that

试题详情

25.-The railway station,please.I have to be there in ten minutes.

    -______,but I’ll do my best.

    A.No problem    B.OK           C.I can’t promise             D.I can’t do that

试题详情

24.-Is it for two months ______ they have stayed here?

    -No,it is only three weeks ______they arrived here.

    A.that;since     B.that;when     C.when;that    D.since;before

试题详情

23.-I really appreciate______ time to relax.

    -I don’t doubt ______ able to do so.

    A.to have;you to be                              B.having;that you being

    C.to have;you are                               D.having;that you are

试题详情

22.When I was at college I ______  three foreign languages, but I ______  all except a few words of each.

    A.spoke; had forgotten           B.spoke; have forgotten

    C.had spoken; had forgotten      D.had spoken; have forgotten

试题详情

第一节:单项填空(共15小题;每小题1分,满分15分)

21.-Would you mind giving your advice on how to improve our business management?

    -If you make ______ most of the equipment, there will be ______ rise in production.

    A.不填;不填     B.the;a        C.不填;a       D.the;不填

试题详情

第二节(共15小题; 每小题1.5分,满分22.5分)

    请听第6段材料,回答第6至7题。

6.What might be the relationship between the two speakers?

    A.Workmates.        B.Friends.          C.Mother and son.

7.What are they talking about?

    A.The man's major in college.                                

    B.The man's favorite subjects.

    C.The man's future job.

    请听第7段材料,回答第8至9题。

8.Who is the woman complaining about?

    A.Her boss.                                          

    B.Her husband.                                          

    C.Her friend.

9.What is the man's advice?

    A.Finishing her job earlier.                     

    B.Leaving the task to others.                   

    C.Asking others for help.

    请听第8段材料,回答第10至11题。

10.What happened to the woman?

    A.She couldn't cross a busy street.                            

    B.She got into a moving taxi.

    C.She got hurt by a taxi.

11.Where are the two speakers?

    A.In the hospital.     B.In the street.          C.In a police station.

    请听第9段材料,回答第12至14题。

12.What does the man want to find out?

    A.The cost of taking a taxi.                                      

    B.The nearest bus stop.                                          

    C.How to get to a hotel.

13.How many possibilities does the woman suggest?

    A.2.                B.3.                  C.4.

14.What is the man's final decision?

    A.Checking the schedule.                                    

    B.Waiting for another bus.                    

    C.Taking a taxi.

    请听第10段材料,回答第15至17题。

15.Where does the conversation most probably take place?

    A.On a plane.       B.On a train.                      C.In a restaurant.

16.Why is the man worried?

    A.This is his first time abroad.                                  

    B.He cannot arrive on time.

    C.He has never seen his grandson.

17.When did the man first see Europe?

    A.Recently.         

    B.After his wife' s death.

    C.During the Second World War.

    请听第11段材料,回答第18至20题。

18.What is the talk mainly about?

    A.Improving our memory.                     

    B.Taking care of our health.                   

    C.Collecting information.

19.What should we do to remember someone's name?

    A.Write it down on a piece of paper.                          

    B.Pay more attention to his or her first name.

    C.Remember his or her last name.

20.What does the speaker suggest to us?

    A.Having a rest for twenty minutes.             

    B.Taking some Vitamin B1 and B2 .

    C.Doing sports during the break.

试题详情

第一节(共5小题;每小题1.5分,满分7.5分)

    请听下面5段对话,选出最佳选项。

1.Where is the man's bike now?

    A.Under the stairs.    B.At the gate.           C.In the garden.

2.What does the man mean?

    A.He doesn't like the hotel.                                  

    B.They can't afford to stay at the hotel.

    C.They do not want to stay at a hotel.

3.What time is the woman leaving?

    A.At 4:30.          B.At 4:00.              C.At 3:30.

4.What does the man think of Mr.Stone's lessons?

    A.Boring.            B.Helpful.               C.Unnecessary.

5.What is the woman doing?

    A.Offering suggestions.                      

    B.Expressing dissatisfaction.                    

    C.Asking for help.

试题详情

45.下图A为二个渗透装置,溶液a.b为等浓度的同种溶液,液体c为清水;图B为“观察植物细胞质壁分离与复原”实验看到的处于30%蔗糖溶液的紫色洋葱表皮细胞。请回答:

⑴ 一个成熟的植物细胞可看作一个封闭的渗透系统,因为图B中的__________相当于图A中的2(半透膜),______________相当于图A中的a溶液,4处的物质为_________,这种物质能到达4处是因为________________________。

⑵ 若要探究溶液浓度对渗透作用的影响,则要调整图A中的某一溶液浓度,调整后,a、b、c三种溶液浓度大小顺序最好为:_______________________,并根据所学知识,在坐标图中用曲线表示实验过程装置l.装置2的液面高度变化趋势(二个渗透装置的起始液面高度定为O)。

试题详情


同步练习册答案