24秋国开电大秋人文英语4单元自测4（10分）答卷参考答案

单元自测4（10分）答卷

单元自测4（10分）

试卷总分:100 得分:100

一、选择填空，从A、B、C三个选项中选出一个能填入空白处的最佳选项。（每题10分）

1. — Could I talk to Prof. Lee?

— _________________.

A. Yes, speaking?

B. Oh, it's you国开搜题

C. I'm waiting for you?

答案:渝粤题库

2.— Sam, this is my friend, Jane.

— _________________.

A. ?I'm Jack?

B. ?Glad to meet you, Jane?

C. Glad to meet you, Sam?

答案:

3.?The atmosphere ???????????certain gases mixed together in definite proportions.

A. ?composes of

B. is made up

C. consists of?

答案:

4.?With his work completed, the manager stepped back to his seat, feeling pleased ____ he was a man of action.?国开形成性考核答案

A. which一网一平台答案

B. that

C. What

答案:

5.?I was giving a talk to a large group of people，the same talk I ___to half a dozen other groups before.?

A. was giving

B. am giving

C. had given

答案:

渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

二、阅读理解：选择题（每题10分）

6.选择题渝粤题库

　　Babies who are breast-fed may be more likely to be successful in life, a new study published Tuesday suggests. The study followed more than 3,000 babies into adulthood in Brazil. The researchers found those who were breast-fed scored slightly higher in intelligence tests in their 30s, stayed in school longer and earned more money than those who were given formula（配方奶粉）.渝粤教育

渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

　　“Breast-feeding not only has short-term benefits, but also breast-feeding has long-term benefits, ” says Bernardo Lessa Horta of the Federal University of Pelotas in Brazil, who led the study being published in The Lancet Global Health.

一网一平台答案

　　Doctors have long known that breast-feeding can be good for a baby's health. This is especially true in poor countries, where water can be contaminated. For instance, a baby given formula in developing countries is 14 times more likely to die in the first six months than one who's breast-fed. In the U.S., some research has suggested that breast-feeding may raise a baby's IQ（智商）by a few points. But a recent study with siblings（兄弟姐妹）found little advantage to breast-feeding.渝粤教育

国开形成性考核答案

　　Horta says these previous studies didn't follow children into adulthood to see if breast-feeding had long-term effects. So Horta analyzed data collected from 3,493 volunteers he and his colleagues have been following since birth. They are now in their 30s. First, the researchers gave the subjects IQ tests. Those who were breast-fed for 12 months or more had IQ test scores that were 3.76 points higher than those who were breast-fed for less than one month, the team found.

　　When Horta and his colleagues looked at how much education the subjects had gotten and how much money they were making, they also found a clear difference: Those who were breast-fed the longest stayed in school for about an extra year and had monthly salaries that were about a third higher.

　　1. From the passage, we learn that Horta 1 .

　　A. is from Brazil

　　B. conducts his research in the U.S.

　　C. has 30 researchers on his team

　　2. Which of the following about those who were breast-fed is NOT mentioned? 2

　　A. They stayed longer in school

　　B. They were happier

　　C. They were smarter

　　3. Which of the following is TRUE? 3

　　A. Doctors don't understand the benefits of breast-feeding.

　　B. Horta is concerned with water contamination in poor countries.国家开放大学作业答案

　　C. Horta's research project lasted about 30 years

　　4. The word contaminated in Paragraph 3 is closest in meaning to 4 .

　　A. finished

　　B. interested

　　C. polluted渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。一网一平台答案

渝粤教育

　　5. Which of the following is an appropriate title for this passage? 5

渝粤搜题

　　A. Researchers Have Pointed Out the Disadvantages of Breast-feeding

　　B. Researchers Have Found Out the Shortcomings of Formula

　　C. Breast-feeding Improves Chances of Success渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

(1).__1__

A. A

B. B

C. C渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

答案:

(2).__2__

A. A

B. B

C. C一网一平台答案

答案:

(3).__3__

A. A

B. B

C. C

答案:渝粤题库

(4).__4__

A. A

B. B

C. C

答案:

(5).__5__

A. A

B. B

C. C

答案: