[外语类试卷]阅读理解练习试卷8及答案与解析.doc
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1、阅读理解练习试卷 8及答案与解析 一、 Reading Comprehension Directions: There are 5 passages in this part. Each passage is followed by 5 questions or unfinished statements. For each of them there are 4 choices marked A, B, C and D. Choose the best one and mark the corresponding letter with a single bar across the squ
2、are brackets on your machine-scoring ANSWER SHEET. 0 In 1999 when MiShel and Carl Meissner decided to have children, they tackled the next big issue: Should they try to have a girl? It was no small matter. MiShels brother had become blind from a hereditary condition in his early 20s, and the Meissne
3、rs had learned that the condition is a disorder passed from mothers to sons. If they had a boy, he would have a 50 per cent chance of having the condition. A girl would be unaffected. The British couples inquiries about sex selection led them to Virginia, US, where a new sperm-separation technique,
4、called MicroSort, was experimental at the time. When MiShel became pregnant she gave birth to a daughter. Now they will try to have a second daughter using the same technique. The technique separates sperm into two groups those that carry the X-chromosome (染色体 ) producing a female baby and those tha
5、t carry the Y-chromosome producing a male baby. The technology was developed in 1990s, but the opening of a laboratory in January 2003 in California marked the companys first expansion. “We believe the number of people who want this technology is greater than those who have access to it,“ said Keith
6、 L. Blauer, the companys clinical director. This is not only a seemingly effective way to select a childs gender. It also brings a host of ethical (伦理的 ) and practical considerations especially for the majority of families who use the technique for nonmedical reasons. The clinic offers sex selection
7、 for two purposes: to help couples avoid passing on a sex-linked genetic disease and to allow those who already have a child to “balance“ their family by having a baby of the opposite sex. Blauer said the company has had an impressive success rate: 91 per cent of the women who become pregnant after
8、sorting for a girl are successful, while 76 per cent who sort for a boy and get pregnant are successful. The technique separates sperm based on the fact that the X chromosome is larger than the Y chromosome. A machine is used to distinguish the size differences and sort the sperm accordingly. 1 Why
9、did MiShel and Carl decide not to have a boy? ( A) Because they might give birth to a blind baby. ( B) Because Carl might pass his familys disease to his son. ( C) Because the boy might become blind when he grows up. ( D) Because they wanted a daughter to balance their family. 2 When MiShel gave bir
10、th to her first girl, the new sperm-separation technique _. ( A) had already been well-developed ( B) had not been declared successful ( C) was available to those who wanted it ( D) had been widely accepted in the medical world 3 Which of the following is the authors primary concern regarding the ap
11、plication of the new technology? ( A) The expansion of the new technology may not bring profits to the companies. ( B) Most people who use the technology will not have a baby as they want. ( C) The effect of the new technology still needs to be carefully examined. ( D) Increasing use of the technolo
12、gy may disturb the sex balance in the population. 4 According to Mr. Blauer, by using the new technology, _. ( A) 91% of the women successfully give birth to girls ( B) 76% of the women get pregnant with boys ( C) it is more successful for those who want to have girls ( D) it is more successful for
13、those who want to have boys 5 The sperm-separation technique is based on the fact that the chromosomes responsible for babies sex _. ( A) are of different shapes ( B) are of different sizes ( C) can be identified ( D) can be reproduced 6 We can infer from this passage that the new technology _. ( A)
14、 may not guarantee people a daughter or a son as they desire ( B) is used by most families for non-medical reasons ( C) has brought an insoluble ethical dilemma for mankind ( D) will lead to a larger proportion of females in the population 6 The worst thing about television and radio is that they en
15、tertain us, saving us the trouble of entertaining ourselves. A hundred years ago, before all these devices were invented, if a person wanted to entertain himself with a song or a piece of music, he would have to do the singing himself or pick up a violin and play it. Now, all he has to do is turn on
16、 the radio or TV. As a result, singing and music have declined. Italians used to sing all the time. Now, they only do it in Hollywood movies. Indian movies are mostly a series of songs and dances wrapped around silly stories. As a result, they dont do much singing in Indian villages anymore. Indeed,
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