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23.-- How can I take the medicine, sir?

   -- Just follow the ______ on the bottle.

A. information    B. explanations    C. directions    D. introduction

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22.Among all these presents______ a very nice watch, which was given by my dear teacher.

     A.including          B.include           C.is included        D.are included

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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. ________ friend of my grandfather’s will come tomorrow. I’m wondering how old _____ man he might be.

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

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第二节(共15小题;每小题1.5分,满分22.5分)

听第6段材料,回答第6至8题。

6. Why is the man so happy ?

  A. He has got a new job in the government.    B. He has seen his brother and sister.  

C. He is going to get lots of money.

7. How did the man’s uncle get his $15,000?

  A. By selling his land to the government.     B. By opening a hospital.     

C. By working in the government.

8. What is not mentioned as a way to do with the money ?

  A. To put it into the bank.       B. To pay off debts   C. To buy a house.

听第7段材料,回答第9至11题。

9. How long does the winter last in the woman’s country according to the conversation?

  A. Six months.      B. Four months.    C. Two months.

10.Who spends more money on clothes?

  A. People in the man’s country.         B. People in the woman’s country.      

 C. All the men in the speakers’ countries.

11.What can we know about people in the man’ country from the woman ?

  A. It’s not easy to get along well with them.  B. They have the same things to worry about.    C. They needn’t worry about their children.

听第8段材料,回答第12至14题。

12. What is the problem with the woman?

  A. She doesn’t know what kind of shoes she should buy.

  B. She hardly knows what color is suitable for her grandson.       

 C. She doesn’t know what size her grandson wears.

13. How old is the woman’s grandson?

  A. 8 years old.    B. 9 years old.     C. 13 years old.

14. What can we know from the conversation?

  A. The shoes there are very expensive.    B. The man is very helpful.      

C. The woman will waste a lot of money.

听第9段材料,回答第15至17题。

15. What can we know about mahjong according to the conversation ?

A. It’s a beneficial hobby. B. It can become an addiction C. It’s too boring to play mahjong.

16. Which of the following is the man’s other hobby ?

A. Collecting stamps.   B. Watching TV series.    C. Collecting science books.

17. What are the speakers going to do after the talk ?

A. Teach their partners.   B. Learn old card games.   C. Play mahjong games.

听第10段材料,回答第18至20题。

18. How old are most American students when they graduate from secondary school ?

A. Fifteen or sixteen years old.     B Sixteen or seventeen years old

C. Seventeen or eighteen years old.

19.Why don’t the parents have to pay the public school for their children’s education ?

A. They are too poor to afford it.    B. Those schools are supported by tax money.    

C. Those schools are supported by rich school.

20. What students at state universities will pay a bit less money for their college expenses?

  A. Students whose parents live in that state.   B. Students whose families are not rich.        C. Students who have part-time jobs.

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第一节(共5小题;每小题1.5分,满分7.5分)

1. How old is the man’s brother ?

A. About 28 years old.    B. About 38 years old.   C. About 48 years old.

2. What will the man do this weekend?

  A. Work in his garden.    B. Go to the picnic.     C. Go to the company.

3. Why does the woman say “I’m sorry” ?

  A. She has never met the man before.     B. The man can’t recognize her at once. 

  C. She has forgotten her meeting with the man.

4. What will the man probably do after the talk?

A. Smoke the cigarettes himself.        B. Bring his wife the cigarettes.

C. Let Sarah smoke the cigarettes.

5. What does the woman think the man should do ?

 A .Move to another part of the plane.  B. Just smoke like her. C. Sit where there is a breeze.

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44.图为某生态系统中食物网简图。图中甲-庚代表各种不同的生物。请据图分析回答:

(1)此生态系统中作为生产者的生物_______,作为次级消费者的生物是__________。

(2)若此生态系统受到重金属污染,那么在体内积存重金属污染物最多的生物是_______。

(3)生物甲与己的关系是______________。

(4)该生态系统只表示了部分成分,图中未表示的成分有______________。

(5)已知各营养级之间的能量转化效率均为10%,若一种生物摄食两种下一营养级的生物,且它们被摄食的生物量相等,则丁每增加l0kg生物量,需消耗生产者____________ kg。

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43.现有A和B两个肉牛品种,A品种牛的细胞组成可表示为A细胞核、A细胞质,B品种牛则为B细胞核、B细胞质。

(1)如果要获得一头克隆牛,使其细胞由A细胞核和B细胞质组成,基本步骤是,从A品种牛体内取出体细胞,进行体外培养。然后再从屠宰场收集B牛卵巢,采集卵母细胞,在体外培养到          ,通过     去除卵母细胞的核,将供体细胞注入去核卵母细胞,通过     使两细胞融合,用      方法激活受体细胞,构建重组胚胎,将该胚胎移入代孕母牛体内,通过培育可达到目的。

(2)克隆牛的产生说明              具有全能性。克隆牛的性状主要表现       品种牛的特征。由A、B两品种杂交得到的牛与克隆牛相比,杂交牛细胞核的遗传物质来自______个亲本,克隆牛和杂交牛的遗传物质组成      (相同,不同)。

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42.现有甲、乙两个烟草品种(2n=48),其基因型分别为aaBB和AAbb,这两对基因位于非同源染色体上,且在光照强度大于800勒克司时,都不能生长,这是由于它们中的一对隐性纯合基因(aa或bb)作用的结果。取甲乙两品种的花粉分别培养成植株,将它们的叶肉细胞制成原生质体,并将两者相混,使之融合,诱导产生细胞团。然后,放到大于800勒克司光照下培养,结果有的细胞团不能分化,有的能分化发育成植株。请回答下列问题:

(1)甲、乙两烟草品种花粉的基因型分别为         

(2)将叶肉细胞制成原生质体时,使用        破除细胞壁。

(3)在细胞融合技术中,常用的促融剂是    

(4)细胞融合后置于合适的诱导培养基下产生的一团细胞叫      

(5)试管苗的体细胞核中含有       条脱氧核苷酸链。

(6)在大于800勒克司光照下,有    种细胞团不能分化;能分化的细胞团是由基因型          的原生质体融合来的(这里只考虑2个原生质体的相互融合)。该细胞团分化发育成的植株,其染色体数是     ,基因型是      。该植株自交后代中,在大于800勒克司光照下,出现不能生长的植株的概率是      

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41.乳腺生物反应器研发成功后,膀胱生物反应器的研究也取得了一定进展。最近,科学家培育出一种转基因小鼠,其膀胱上皮细胞可以合成人的生长激素并分泌到尿液中。请回答:

(1)基因工程的基本操作步骤是                       

(2)在基因工程中,将目的基因与运载体结合时必须用       酶和      酶。常用的运载体有    等,作为运载体必须具备相应的条件,如应具有      以便进行筛选。

(3)将人的生长激素基因导入小鼠受体细胞,常用方法是         。进行基因转移时,通常要将外源基因转入   中,原因是       

(4)通常采用      技术检测外源基因是否插入了小鼠的基因组。

(5)在研制膀胱生物反应器时,应使外源基因在小鼠的      细胞中特异表达。

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40. 下列有关生态系统稳定性的叙述,不正确的是

A.生态系统具有自我调节能力,这是生态系统稳定性的基础

B.生态系统内部结构与功能的协调,可以提高生态系统稳定性

C.生物多样性对维持生态系统稳定性具有重要作用,体现了其间接价值

D.生态系统中的组成成分越多,食物网越复杂,生态系统恢复力稳定性就越强

第II卷非选择题(50分)

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