从1978年7月25日世界上第一位“试管婴儿”诞生,至今全球试管婴儿数量已达到4

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问题:

从1978年7月25日世界上第一位“试管婴儿”诞生,至今全球试管婴儿数量已达到400万。1996年7月5日克隆羊“多利”诞生,至今已成功克隆了多种动物。请分析回答试管婴儿与克隆技术的有关问题:

(1)试管婴儿和克隆动物的培育过程中均会用到的生物技术有___________、__________。

(2)试管婴儿和克隆动物的生殖方式分别属于____________和_____________。

(3)培育试管婴儿时,可通过给母体注射_____________增加排卵数量。

(4)克隆动物时,将甲个体的细胞核移入乙个体去核的卵细胞中,由重组细胞培育成个体丙,则个体丙的基因来源于______________。

(5)请列举一例克隆技术在医疗方面的应用______________。

考点:胚胎工程的应用及前景生殖的类型人体的器官移植动物细胞的培养动物细胞的核移植技术体外受精和早期胚胎培养
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     I came to study in the United States a year ago. Yet I did not know the American society until I was

injured in a car accident because after the accident I had to see a doctor and go to court. After the

accident, my roommate called a doctor for me. I was very grateful and decided to repay him one day.

But the next day, he asked me to pay him $200 for what he had done. I was astonished. He had good

reason to charge me, he said. And if I wanted to collect money from the person who was responsible for my injury, I’d have to have a good lawyer. Now that he had helped me to find a good doctor, it was only

fair that I should pay him.

      But every time I went to see the doctor, I had to wait about 50 minutes. He would see two or three

patients at the same time, and often stop treating one so as to see another. Yet he charged me $115 each

time. The final examination report only contained ten lines, and it cost me $215.

     My lawyer was all smiles the first time we met. But after that he avoided seeing me at all. He knew

very well the other party was responsible for the accident, yet he hardly did anything. He simply waited

to collect his money. He was so irresponsible that I decided to fire him. And he made me pay him $770.

     Now I had to act as my own lawyer. Because of my inexperience, I told the insurance the date I was

leaving America. Knowing that, they played for, time …and I left without getting a cent.

     My experiences taught me two things about America: firstly, in a country like America money is

everything. It is more important than friendship, honor or professional morality; secondly, foreigners are

still being unfairly treated. So when we talk about America, we should see both its advantages and

disadvantages.

1. The author’s roommate offered to help him because ________.

A. he felt sorry for the author.            

B. he thought it was a chance to make some money

C. he knew the doctor was a very good one  

D. he wanted the author to have a good lawyer

2. A good lawyer is important for the author to ________.

A. be properly treated              

B. talk with the person responsible for the accident

C. recover before he leaves America

D. eventually get the responsible party to pay for his injury

3. Which is wrong according the the passage?

A. The author has learned a lot through the experience.

B. Everything about America is advantageous.

C. The author's roommate helped him but charged for that.

D. The author's final examination report only contained ten lines but cost $215.

4. The word charge in the passage means _____.   

A. be responsible    

B. entertain    

C. ask to pay    

D. repay

5. What conclusion can you draw from this story?

A. Going to court is something very common in America. 

B. One must be very careful while driving a car.

C. There are more disadvantages in America than advantages.

D. Money is more important than other things in the US.

题型:填空题
如图所示为一磁流体发电机示意图,A、B是平行正对的金属板,等离子体(电离的气体,由自由电子和阳离子构成,整体呈电中性)从左侧进入,在t时间内有n个自由电子落在B板上,则关于R中的电流大小及方向判断正确的是(  )

A.I= ,从上向下

B.I= ,从上向下

C.I= ,从下向上

D.I= ,从下向上

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A、B、C、D、E是同周期元素(非零族元素),A、B的最高价氧化物的水化物呈碱性,且B比A的碱性强,C、D最高价氧化物水化物是酸,且C比D的酸性强,E是这五种元素中原子半径最大的,则它们的核电荷数由小到大的顺序是(  )

A.E<C<D<B<A

B.D<B<C<A<E

C.E<B<A<D<C

D.A<B<C<D<E

题型:填空题

如下图是甲、乙两个电阻的电流I与电压U的关系图象,将它们并连接入电路,下列说法正确的是(  )

A.通过甲的电流大于通过乙的电流

B.通过甲的电流小于通过乙的电流

C.甲、乙并联的总电阻随它们两端电压的升高而减小

D.甲、乙并联的总电阻随它们两端电压的升高而增大

题型:填空题

为充分保障基金投资者的权益,防止基金资产被挪作他用,各国的证券投资信托法规都规定必须由某一托管机构,即基金托管人来对基金管理机构的投资操作进行监督和保管基金资产。()

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