Question 19
A、The function of the human immune system.
B、The cause of various auto-immune diseases.
C、The viruses that may infect the human immune system.
D、The change in people's immune system as they get older.
听前预测：快速浏览本部分的所有选项,由频繁出现的关键信息 immune system可知这篇文章和免疫系统有关,听音时应侧重听与选项关键信息相关的内容。［
19］ My research focus is on what happens to our immune system as we age. So the job of the immune system is to fight infections. It also protects us from viruses, and from auto- immune diseases. We know that as we get older, it’s easier for us to get infections, so older adults have more chances of falling ill. This is evidence that our immune system really doesn’t function so well when we age. In most of our work, when we’re looking at older adults who’ve got an illness, we always have to have health controls. So we work very closely with a great group of volunteers called the One Thousand Elders, These volunteers are all65 or over, but in good health.［20］They come to the university to provide us with blood samples, to be interviewed, and to help us carry out a whole range of research. ［21］ The real impact of our research is going to be on health in old age. At the moment, we’re living much longer. Life expectancy is increasing at two years for every decade. That means an extra five hours a day. I want to make sure that older adults are still able to enjoy their old age, and that they’re not spending time in hospital with infections, feeling unwell and being generally weak.［21］ We want people to be healthy, even when they are old.
Question 19 What is the focus of the speaker’s research? 讲话者开门见山地提到,我的研究重点是,随着年龄的增长,我们的免疫系统会发生什么样的变化。选项D是一个概括句且与讲话中表述的含义一致,是正确选项。选项A是选项D的一部分不是总结性句子,所以并不是重点内容。选项B、C在讲话中均未提到,可排除。
A、The function of the human immune system.
B、The cause of various auto-immune diseases.
C、The viruses that may infect the human immune system.
D、The change in people's immune system as they get older.
听前预测：快速浏览本部分的所有选项,由频繁出现的关键信息 immune system可知这篇文章和免疫系统有关,听音时应侧重听与选项关键信息相关的内容。［
19］ My research focus is on what happens to our immune system as we age. So the job of the immune system is to fight infections. It also protects us from viruses, and from auto- immune diseases. We know that as we get older, it’s easier for us to get infections, so older adults have more chances of falling ill. This is evidence that our immune system really doesn’t function so well when we age. In most of our work, when we’re looking at older adults who’ve got an illness, we always have to have health controls. So we work very closely with a great group of volunteers called the One Thousand Elders, These volunteers are all65 or over, but in good health.［20］They come to the university to provide us with blood samples, to be interviewed, and to help us carry out a whole range of research. ［21］ The real impact of our research is going to be on health in old age. At the moment, we’re living much longer. Life expectancy is increasing at two years for every decade. That means an extra five hours a day. I want to make sure that older adults are still able to enjoy their old age, and that they’re not spending time in hospital with infections, feeling unwell and being generally weak.［21］ We want people to be healthy, even when they are old.
Question 19 What is the focus of the speaker’s research? 讲话者开门见山地提到,我的研究重点是,随着年龄的增长,我们的免疫系统会发生什么样的变化。选项D是一个概括句且与讲话中表述的含义一致,是正确选项。选项A是选项D的一部分不是总结性句子,所以并不是重点内容。选项B、C在讲话中均未提到,可排除。