1113高中英语复习资料9.doc

广安市2017高考英语阅读理解一轮系列训练（96）阅读理解。

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

Are you preparing for a big test? If so, you may want to go play some basketball in between hitting the books. Doctors are starting to find more and more information that suggests a connection between exercise and brain development. Judy Cameron, a scientist at Oregon Health and Science University, studies brain development. According to her research, it seems that exercise can make blood vessels(血管), including those in the brain, stronger and more fully developed. Doctor Cameron is sure that this allows people who exercise to think better. As she says, “ while we already know that exercise is good for the heart, exercise can actually cause physical changes in the brain.”The effects of exercise on brain development can even be seen in babies. Babies who do activities that requires a lot of movement and physical activity show greater brain development than babies who are less physically active. Even a little movement can show big results. Margaret Barnes, a scientist, also believes in the importance of exercise. She thinks that many learning disabilities that children have in primary school or high school can result from a lack of movement as babies. “Babies need movement that encourages and excites their five senses. They need to set up a connection between motion and memory. In this way, as they get older, children will begin to connect physical activity with higher learning,” says Margaret.Older people can develop their brains as well. Cornell University studied a group of seniors who have a short—term memory increase of up to 40 percent after exercising just three hours a week. The exercise does not have to be very difficult, but it does have to increase the heart rate. Also, just like the motion for babies, exercise for older people should not be too simple. Learning some new skills or actions, such as with yoga or tai-chi helps to open up memory paths in the brain that may not have been used for a long time. For most people, any type of physical activity that increases the heart rate is helpful. The main aim is to increase the brain’s flow of blood. And your brain can benefit from as little as two to three hours of exercise a week.1. What is the main idea of this passage?A. How exercise makes people strong.B. How to get good scores on a test.C. How exercise helps the brain.D. How the brain can change.2. According to the passage, what is the connection between exercise and brain development?A. Exercise helps make our blood vessels.B. Physical exercise helps us think better.C. The brain needs special mental exercise.D. The more exercise, the bigger the brain.3. The smallest amount of exercise required to gain any benefit is .A. three hours per weekB. 40 hours per weekC. three hours per dayD. 40 hours per month4. Why is yoga suggested for seniors?A. It does good to the joints of old people.B. It does not increase the heart rate.C. It includes learning new actionsD. It can be done in groups.1、答案解析：答案为C。

本题为主旨大意题。

第一段就点出了全文的中心“According to her research, it seems that exercise can make blood vessels, including those in the brain, stronger and more fully developed.”，锻炼可以使血管，包括大脑里的血管更结实、发育更好，后面的段落分别对中心进行阐述证明。

故答案为C。

2、答案解析：答案为B。

本题为细节推理题。

由第一段“According to her research, it seems that exercise can make blood vessels, including those in the brain, stronger and more fully developed. Doctor Cameron is sure that this allows people who exercise to think better.”可知，答案为B。

3、答案解析：答案为A。

本题为细节题。

由最后一段最后一句话“And your brain can benefit from as little as two to three hours of exercise a week.”可知，答案为A。

4、答案解析：答案为C。

本题为推理题。

由最后一段“Learning some new skills or actions, such as with yoga or tai-chi helps to open up memory paths in the brain that may not have been used for a long time. For most people, any type of physical activity that increases the heart rate is helpful.”，可知C选项正确。

A、D选项未提及；B选项与文意相反。

故答案为C。

阅读理解训练(2015·长春市质量检测二)Scientists in Argentina have created the world's first cow with two human genes that will enable it to produce human­lik e milk.Genetic enginee ring was used to introduce the “mothers' milk” genes into the animal beforebirth, according to the National Institute of Agribusiness Technology in Buenos Aires.As an adult the cl oned cow “will produce milk that is similar to humans” in what will prove “a development of great importance for the nutrition of infants(婴儿)”，said the institute.“The cloned cow, named Rosita ISA, is the first in the world that incorporates two human genes that contain the proteins present in human milk，” said the statement.The Argentine team said the Chinese only introduced one human gene, while their research involved two，meaning the milk will more_closely_resemble that of humans.“Our goal was to raise the nutrition value of cows' milk by adding two human genes, which do good to the immune system of the infants.” said Adrian Mutto, from the National University of San Martin which worked with the institute.Cristina Kir chner, President of Argentina, said that the scientific institute “makes all Argentines proud.”She also rejected that she had rejected the “honour” of having the cow named after her. “They came to tell me that the name is Cristina, but what woman would like to have a cow named after her? It appeared to me to be more proper to call it Rosita.”文章大意：这是一篇新闻报道，属记叙文体裁，介绍了阿根廷通过添加人类基因的方式培育出了“类人乳”牛。