0  427393  427401  427407  427411  427417  427419  427423  427429  427431  427437  427443  427447  427449  427453  427459  427461  427467  427471  427473  427477  427479  427483  427485  427487  427488  427489  427491  427492  427493  427495  427497  427501  427503  427507  427509  427513  427519  427521  427527  427531  427533  427537  427543  427549  427551  427557  427561  427563  427569  427573  427579  427587  447090 

24.I’ve promised to keep it secret so I can’t really tell you anything     what you know already.

  A.for    B.about    C.of   D.beyond

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23.The Roma people originally lived in northwestern India in     is now southeastern

Parkistan.

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

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22.—Excuse me, can you spare me a few minutes?

    ?

  A.What’s on    B.What is it    C.What’s up    D.What’s more

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第一节  单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填人空白处的最佳选项,并在答题卡上将该项涂黑。

第一节  选择题

21.I was going to pay a visit to    Smiths when     Mr Green called me up, who I didn’t know at all.

  A.the , the    B.the , a    C.a , the   D.a, a

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第二节(共15小题;第小题1.5分,满分22.5分)请听下面5段对话或独白,选出最佳选项。请听第6段材料,回答第6至8题。

6.What does the woman show the man?

  A.Pictures.    B.Postcards.    C.Stamps.

7.Where did the woman get the things she shows the man?

  A.At the Summer Palace.      B.At the Forbidden City.

C.A t the Great Wall.

8.What did the woman do in China?

  A.She learned a lot of Chinese.    B.She made some great Chinese friends.

C.She learned how to cook C                                              hinese food.

请听第7段材料,回答第9至11题。

9.When does the conversation probably take place?

  A.Before the play.    B.During the play.   C.After the play.

10.Which of the following is TRUE about the play?

  A. The heroine’s name is Ann Merriweather.

B.It’s a comedy about three sisters.

C.One teacher falls in love with her colleague.

11.What can we learn from the conversation?

  A.Neither the man nor the woman has seen the play before.

B.The man bought the woman one ticket for the play.

C.The woman is not familiar with the plot of the play.

请听第8段材料,回答第12至14题。

12.What did the woman use to be?

  A.A film star.    B.A singer.    C.A tennis player.

13.How does the woman feel about New York?

  A.New York hasn’t had any changes at all.

B.Changes have taken place round the center.

C.The countryside has some differences from the downtown area.

14.Why does the woman come to New York?

  A.To star in a TV program.

B.To attend or watch the tennis games.

C.To spend a vacation.

请听第9段材料,回答第15至17题。

15.What can we know about the shirt the woman first recommends?

  A.It’s a white shirt.

B.Its size is thirty-one.

C.It costs 5.59 dollars.

16.What did the man buy in the shop yesterday?

  A.A handkerchief    B.A tie    C.A pair of socks

17.What is the man’s total bill?

  A.3.95 dollars.   B.4.50 dollars   C.4.60 dollars.

请听第10段材料,回答第18至20题。

18.What did the speaker’s friends think of his change of interest?

  A.Understandable    B.Strange.   C.Crazy.

19.Why did the speaker change his interest to underwater exploration?

  A.It is much cheaper than space travel.

B.It is much safer than space travel.

C.It is more exciting than space travel.

20.In what way does the speaker think the ocean is similar to space?

  A.They are both easy to explore.

B.They are both beautiful.

C.They are both awful.

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  该部分分为第一、第二两节。注意:回答听力部分时,请先将答案标在 试卷上。听力部分结束前,你将有两分钟的时间把你的答案转涂到客观题答题卡上。

第一节(共5小题;第小题1.5分,满分7.5分)

请听下面5段对话,选出最佳选项。

1.When will the film end?

  A.At 8:30.    B.At 9:00.    C.At 9:30.

2.What does the woman mean?

A.She made the dress herself.   B.Her mother bought the dress for her.

C.Her mother made the dress for her.

3.Where is the woman from?

  A.America    B.Australia    C.Canada

4.Where does the conversation take place?

  A.At a post office    B.At a shop.    C.At a hotel.

5.How much is the jacket?

  A.600 US dollars.    B.100 Hong Kong dollars.   C.600 Hong Kong dollars.

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31. (12分)取甲、乙、丙、丁四支洁净的试管,按照下表中顺序依次加入有关物质并进行有关处理,回答下列问题:

试管编号




淀粉溶液3mL
+
+
+
 
新鲜的小麦淀粉酶滤液2mL
+
-
+
 
35℃的水浴5分钟
+
+
+
+
碘液1滴
+
+
-
 
斐林试剂2mL
-
-
+
 
沸水浴加热5分钟
-
-
+
+

 (注:“+ ”表示加入物质或相关处理,“- ”表示不加物质或不做处理)

(1) 用甲、乙试管做验证酶具有催化作用的实验,则乙试管中还应加入       ,乙试管内的实验现象是          

(2) 用丙、丁试管做验证酶具有专一性的实验,则丁试管内应先后加入      (从下面的①-⑧中选择序号填空)。

①碘液1滴    ②斐林试剂2mL  ③双缩脲试剂2mL ④二苯胺试剂2mL  

⑤淀粉溶液3mL  ⑥蔗糖溶液3mL  ⑦小麦淀粉酶滤液2mL  ⑧清水2mL 

该实验的实验变量是                        。

该实验的原理是:①                               。 

                               。

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30. (30分)

Ⅰ.(18分)某实验室做了下图所示的实验研究,已知小鼠体细胞的染色体数目为40条。分析回答下列问题:

(1)与纤维母细胞相比,过程①形成的诱导干细胞的全能性        。

(2)过程②是       过程,其根本原因是             。

(3)要获得Y细胞,将H1N1病毒外壳蛋白质注射到小鼠体内,实质是在小鼠体内引发

      过程,Y细胞一般是从小鼠        中采集的。

(4)过程③除了采用诱导植物细胞原生质体融合的方法外,还可以用       诱导。

(5)产生单抗Z细胞叫          ,它从培养液中吸收氨基酸的方式和分泌单抗到细胞外的方式      (相同/不同)。

(6)培养中的Z细胞最多含有      条染色体。

Ⅱ.(12分)细胞周期包括分裂间期(分期G1、S期和G2期)和分裂期(M期)。下图标注了甲动物(体细胞染色体数为12条)肠上皮细胞的细胞周期各阶段的时长及DNA含量。请回答下列问题:

(1)若用含放射性同位素的胸苷(DNA复制的原料之一)短期培养甲动物肠上皮细胞后,处于S期的细胞都会被标记。洗脱含放射性同位素的胸苷,换用无放射性的新鲜培养液培养,定期检测。预计最快约    h后会检测到被标记的M期细胞。

(2)从被标记的M期细胞开始出现到其所占M期细胞总数的比例达到最大值时,所经历的时间为     期的时间(填图中字母),处于该期的一个细胞中染色体数目的变化情况是        

(3)若向甲动物肠上皮细胞培养液中加人过量胸苷,处于S期的细胞立刻被抑制,而处于其他时期的细胞不受影响。预计加人过量胸苷约     h后,细胞都将停留在S期。

(4)乙动物肠上皮细胞的细胞周期时长为24h,M期时长为l.9h。若要在显徽镜下观察细胞有丝分裂过程中染色体形态的变化,选用     (填“甲”或“乙”)动物肠上皮细胞更合适。

(5)在光学显徽镜下观察,同处于分裂末期的动物肠上皮细胞与洋葱根尖细胞,形态上最主要的区别是                            

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5.圆褐固氮菌所固定的氮素参与氮循环的全过程,下列表述正确的是 (   )

A.N2→NH3→NO3-→生物体有机氮→NH3→NO3-→N2

B.N2→NH3→生物体有机氮→NH3→NO3-→N2

C.N2→NH3→生物体有机氮→NO3-→N2

D.N2→NH3→NO3-→生物体有机氮→NH3→N2

           第Ⅱ卷(非选择题  共174分)

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4.下列关于甘蔗、玉米叶片结构及光合作用过程的叙述,正确的是 (   )

① 围绕着维管束的叶肉细胞排列疏松

② 因为叶肉细胞的叶绿体有正常的基粒,所以,水的光解发生在叶肉细胞

③ NADPH储存了能量,并具有还原性

④ CO2中的C首先转移到C4中,然后才转移到C3

⑤ 光能转化为电能时,电子的最终受体是ATP和NADP+

A.①③⑤       B.①①③④       C.②④⑤      D.②③④

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