Unit 2 The Olympic Games language points课时作业

Ⅰ.阅读理解

　　A

　　There are many ways in which human cloning is expected to benefit humans.

　　Dr Richard Seed, one of the leading supporters of human cloning technology, suggests that it may someday be possible to completely change the aging process because of what we learn from cloning.

　　Scientists believe that they may be able to treat heart attack victims by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged. Heart disease is the number one killer in the US and several other industrialised countries.

　　There has been a breakthrough with human stem cells. Embryonic stem cells can be grown to produce organs to repair or replace damaged ones. Skin for burn victims, brain cells for the brain damaged, hearts, lungs, and kidneys could be produced. By combining this technology with human cloning technology, it may be possible to produce needed organs for suffering people that will be free of rejection by their immune systems. Conditions such as Alzheimer's disease, Parkinson's disease, heart failure, and other problems can be cured if human cloning and its technology are not banned.

　　Though current treatments for infertility (不生育) are getting a fair amount of publicity in the news, they, in terms of percentages, are not very successful. Some data shows that current infertility treatments are less than 10 percent successful. Couples go through physically and emotionally painful procedures for a small chance of having children. Many couples run out of time and money without successfully having children. Human cloning could make it possible for many more infertile couples to have children than ever before possible.

　　1．According to Dr Richard Seed, we can use cloning technology to ________.

　　A．produce more animals

　　B．make people live happily

　　C．make people look younger

　　D．cure people of many diseases

　　解析：选C　推理判断题。根据第二段中的"to completely change the aging process"可知，Richard Seed认为克隆技术可以彻底改变变老的进程。因此推知，克隆技术可以使人们看上去更年轻。

2．We can learn from the passage that ________.