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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

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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

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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

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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

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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.

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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.

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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)。

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44.某工厂生产了一种加酶洗衣粉,其包装袋上印有如下说明:

   成分:含碱性蛋白酶等。 

用法:洗涤前先将衣服浸于洗衣粉水内数小时。使用温水效果最佳。

注意:切勿用于丝质及羊毛衣料。用后彻底清洗双手。请回答下列问题:

(1)质检局针对该洗衣粉设计了如下装置进行实验:

 该实验的目的是                           

(2)一学生为探索该洗衣粉中酶催化作用的最适温度,参考上述(1)的实验材料及方法进行了如下实验,并把结果用两曲线图表示。

①由图可知,使用该加酶洗衣粉的最适温度约为          

②在O℃和75℃时,酶的催化效率基本都降为零,但温度再度回到45℃,后者的催化作用已不能恢复,这是因为                    

③该学生在实验过程中可通过观察                        

现象判断酶的催化效率。

(3)该加酶洗衣粉的去污原理是                        

(4)大力推广使用加酶洗衣粉代替含磷洗衣粉,有利于生态环境保护,这是因为      

                                       

                                     

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43.下图表示人体内几种化学元素和化合物的相互关系,其中a、b表示有机小分子物质,A、B、X代表有机高分子物质,虚线表示遗传信息的流动方向。请据图分析回答:

(1)b的分子结构简式可表示为       __________________________________

        (2)B可分为B1、B2、B3等,其原因是:

从              从 b角度分析是由于        ________________________________

从              从A角度分析是因为                  _______________

(3)与合成B1有关的A片段在人体的肝细胞中是否存在?     _____

原因是每一个体细胞中                     ________

                (4)假如Bn是由51个氨基酸,两条肽链组成的,在形成1分子Bn的过程中,共形成              __              ________个肽键。

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42.下面是以伞藻为实验材料所做的几个经典的生物学实验。请依据所提供的材料,回答下列问题。

Ⅰ.下图为两种单细胞伞藻的幼体相互嫁接的实验示意图。

  (1)上述实验的大体过程是:①将甲种伞藻的部分   ______嫁接到乙种伞藻的_______上;②将乙种伞藻     嫁接到甲种伞藻的_____         上.

  (2)该实验的结果是:

                               

                                 

(3)实验结果说明:                             

  Ⅱ.材料一  伞藻是单细胞生物。甲.乙两种伞藻的帽形不

同(如 图),现将甲伞藻的A部分与乙伞藻的B部分嫁接

在一起,发现第一次长出的帽状体呈中间类型,若切除这

一帽状体,第二次长出的帽状体则与甲的帽状体形状相同。

材料二  当伞藻的帽状体长到一定大小时,就不再继续长大,

而是开始发生细胞分裂。于是有人提出了如下假说:细胞分

裂与细胞核.质体积的比例有关,当细胞核的体积(h)与

细胞质的体积(z)比值太小时,细胞就会发生分裂;反之,就不会发生分裂。并且还做了如下实验:在伞帽已经长出,核将要分裂时,将伞帽切去,核的分裂就受到抑制,直到新的伞帽再生出来,核才恢复分裂。

(1)材料一中,第一次长出的帽状体呈中间类型,说明此时生物的

                                                  

                                      

(2)第二次长出的帽状体与甲的帽状体形状相同,这能说明核.质之间是一种什么关系?

                                                                            

(3)请你利用伞藻,另外设计一个实验,作为材料二实验的补充,并进一步证明上述假说。

_______________________________________________________________________________________________________________________________________________________。

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