2018考研英语阅读理解模拟试题及答案
阅读理解是考研英语的必考题型,考生一定要加以重视,多做模拟试题巩固知识。今天,本站小编准备了2018考研英语阅读理解模拟试题,以供考生练习。
2018考研英语阅读理解模拟试题:【原文】Depending on whom you ask, the experiment announced at a Texas medical conference last week was a potential breakthrough for infertile women, a tragic failure or a dangerous step closer to the nightmare scenario of human cloning.
There's truth to all these points of view. Infertility was clearly the motivation when Chinese doctors used a new technique to help one of their countrywomen get pregnant. Unlike some infertile women, the 30-year-old patient produced eggs just fine, and those eggs could be fertilized by sperm. But they never developed properly, largely because of defects in parts of the egg outside the fertilized nucleus. So using a technique developed by Dr. James Grifo at New York University, Dr. Zhuang Guanglun of Sun Yat-sen University in Guangzhou took the patient's fertilized egg, scooped out the chromosome-bearing nuclear material and put it in a donated egg whose nucleus had been removed. In this more benign environment, development proceeded normally, and the woman became pregnant with triplets who carried a mix of her DNA and her husband's——pretty much like any normal baby.
What has some doctors and ethicists upset is that this so-called nuclear-transfer technique has also been used to produce clones, starting with Dolly the sheep. The only significant difference is that with cloning, the inserted nucleus comes from a single, usually adult, cell, and the resulting offspring is genetically identical to the parent. Doing that with humans is ethically repugnant to many. Besides, for reasons that aren't yet well understood, cloned animals often abort spontaneously or are born with defects; Dolly died very young, though she had seemed healthy. And because the Chinese woman's twins were born prematurely and died (the third triplet was removed early on to improve chances for the remaining two), critics have suggested that cloning and nuclear transfer are equally risky for humans.
Not likely, says Grifo. “The obstetric outcome was a disaster,” he admits, “but the embryos were chromosomally normal. We have no evidence that it had anything to do with the procedure.” Even so, concern over potential risks is why the Food and Drug Administration created a stringent approval process for such research in 2001——a process that Grifo found so onerous that he stopped working on the technique and gave it to the researchers in China, where it was subsequently banned (but only this month, long after Zhuang's patient became pregnant)。
The bottom line, say critics, is that perfecting a technique that could be used for human cloning, even if it were developed for another purpose, is just a bad idea——an assertion Zhuang rejects. “I agree that it makes sense to control these experiments,” he says. “But we've developed an effective technology to help people. We understand how to do it. We need it.”
注(1):本文选自Time; 10/27/2003, p47;
注(2):本文习题命题模仿对象2003年真题Text 4;
2018考研英语阅读理解模拟试题:【题目】1. What is implied in the first paragraph?
[A]Some people regard it as a tragic failure.
[B]The new experiment means a breakthrough for some people.
[C]People have different reactions to the new experiment.
[D]The new experiment means a step further to the dangerous human cloning.
2. The author uses the case of Dolly and the Chinese pregnant woman to show that _________.
[A]both nuclear-transfer and cloning are dangerous for humans and animals
[B]both of them benefit from the new technique
[C]both of them are the examples of technical failure
[D]both of them are the fruits of the new technology
3. Zhuang‘s attitude toward the critics’ conclusion is one of __________.
[A]reserved consent
[B]strong disapproval
[C]slight contempt
[D]enthusiastic support
4. The only difference existing between nuclear-transfer and cloning technique is ________.
[A]whether it is used for research or for helping the infertile
[B]whether the offspring looks like the parent
[C]whether it is used in animals or human beings
[D]whether the inserted nucleus comes from a single and usually adult cell
5. The text intends to express the idea that _________.
[A]research of cloning has potential risks
[B]the research of cloning should be stopped totally
[C]ethics and research of cloning are in contradiction
[D]researchers should have the right to continue the study of cloning
2018考研英语阅读理解模拟试题:【答案】答案:CABDC
猜你感兴趣:
1.考研英语阅读理解的正确做题方法
2.考研英语阅读经典美文双语
3.考研英语阅读精选时文
4.考研英语阅读美文双语
-
考研英语与四六级两者的区别
考研英语与四级肯定是有很大差别的,下面是小编给大家整理的四六级英语和考研英语几个不同地方,大家可以作为了解。1、考查目的的区别(1)考研面向的对象是报考研究生的同学,而四六级是面对所有的大学生,因此前者的选拔目的更加突出,考查形式也更为灵活,而四六级则更注...
-
英语专业研究生入学考试有什么要求
英语专业的研究生有英语文学、英语语言学、应用英语和翻译,通常被称为MTI。需要注意的是,除MTI以外的英语专业研究生需要参加复试,一般是日语、德语、法语和西班牙语。不同的学校对第二外语可能有不同的要求。那么英语专业研究生入学考试有什么要求?一起来看看吧!...
-
考研英语作文万能句子:过渡句式
考研写作备考的过程中,一定要学会多积累多掌握。下面是小编给大家分享的考研英语写作万能句,大家可以作为学习的参考。①Thisisnotanuncommonsceneinourlife...这幅图片所描述的情形在我们的生活中很普遍....②Whatthepictureaboveintendstoconveyisatypicalexam...
-
考研英语总分是多少
考研英语是研究生考试的公共科目,考试分英语一和英语二,英语一学术型硕士考试科目,英语(二)为大多数专业型硕士考试科目。以下是关于考研英语总分多少的具体介绍,一起来看看吧!一、考研英语满分多少分考研英语满分是100分,考研英语是研究生考试的公共科目,考试分英...