摘要:10.C.牛主人问及Nasreddin打牛的原因.这里需要一个引导词引导 knew的宾语从句.且在从句中作状语.根据上文可知这里应填 why. 11 Tom grows the nicest vegetables and fruits and the most beautiful flowers in the village. Plants grow in Tom’s garden all through the 1 and they are much 2 . Tom cuts some flowers for his sitting room table, eats some fruits and vegetables, but he 3 most of them in the market. His vegetables, fruit and flowers are so 4 and beautiful that they sold much more 5 in the market than those of other villagers. How does Tom grow these beautiful things? He is so 6 that he just sits under his orange tree with his radio. He 7 the music all day. That is quite true. Tom 8 things in spring, summer, autumn and winter. After that he sits with his radio. And everything 9 . It is the music that does the work. Tom knows more clearly that music makes the biggest vegetables and the most beautiful flowers. Plants love 10 as much as people.

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Mr. Jones works in a factory far away from his home. One day he wanted to send a letter to his wife, but he could neither read nor write, and he had to work all day, so he could only look for somebody to write his letter late at night. At last he found the house of a letter-writer whose name was Nasreddin. 

Nasreddin was already in bed. “It is late,” he said. “What do you want?” “I want you to write a letter to my wife,” said Mr. Jones. Nasreddin was not pleased. He thought for a few seconds and then asked, “Has the letter got to go far?”

“What does that matter?” answered Mr. Jones. 

“Well, my writing is so strange that only I can read it, and if I have to travel a long way to read your letter to your wife, it will cost you a lot of money. ”Mr. Jones went away with no words.

1.Mr. Jones is a ________.

    A. letter-writer                    B. postman                  C. worker

2.Mr. Jones looked for somebody to write a letter for him ______.

    A. late at night

B. in the morning

C. in the afternoon

3.Nasreddin was not pleased because he wanted to ______.

A. write the letter             B. make money               C. remain in bed

4.We know from the story that Nasreddin is a _______ man.

A. kind                     B. funny                        C. strict

5.Which of the following statements is TRUE?

A. Mr. Jones paid no money to Nasreddin.

B. Mr. Jones was happy when he heard the words.

C. Nasreddin wrote the letter for Mr. Jones.

 

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(13分)请回答胚胎工程和基因工程方面的问题:
(1)应用胚胎工程技术可以培育出“试管牛”。试管牛的培育需经过体外受精、       、
       以及在母体中发育和产出等过程。
(2)在“试管牛”的培育过程中,要使精子和卵母细胞在体外成功结合,需要对精子进行处理,使其         。另外,培养的卵母细胞需要发育至减数第二次分裂的中期,该时期在显微镜下可观察到次级卵母细胞和          。
(3)通常奶牛每次排出一枚卵母细胞,采用激素处理可使其一次排出多枚卵母细胞,常使用的激素是                。
(4)利用基因工程可以获得转基因牛,从而改良奶牛的某些性状。基因工程的四个基本操作步骤是          、基因表达载体的构建、         和         。若要获得的转基因牛分泌的乳汁中含有人干扰素,则所构建的基因表达载体必须包括:某种牛乳腺分泌蛋白基因及其启动子、         、         、         和复制原点等。将该基因表达载体导入受体细胞所采用的方法是         (显微注射法、农杆菌转化法),为获得能大量产生人干扰素的转基因牛,该基因表达载体应导入的受体细胞是          (受精卵、乳腺细胞)。
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