24秋国开电大春吉林广播电视大学理工英语4unit7 形考成绩单元自测7（10分）参考答案

unit7 形考成绩_单元自测7（10分）0

unit7 形考成绩_单元自测7（10分）0

试卷总分:100 得分:100

一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。

1. — So how can we buy safe food?

—? ????????????????????? .

A. The higher the price, the safer the food

B. We can plant vegetables and fruits by ourselves

C. When we choose food, we must remember to check its tag, confirming whether the basic information is marked on it

答案:

2.—?I think the other reason can be identified from the industrialization of food production.

—? ???????????? .?Some illegal traders care about nothing but making money.?

A. That bothers me too

B. I sincerely hope that the whole society pay much more attention to food safety一网一平台答案

C. Yes, you bet

答案:渝粤教育

3.— What would you like to have for breakfast?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。

—? ????????????????????? .?Would you like to have a taste?渝粤题库

A. Twisted cruller, I bought it this morning

B. I already had my breakfast

C. Breakfast is the most important?meal of the day

答案:

4.Animal farming ?????? about half of all human-caused greenhouse gases.

A. count for

B. accounts for

C. count on渝粤搜题

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。

5.They should never try to pursue profit ?????? health and life of people.

A. in terms of

B. at sight of

C. at the expense of

答案:国开搜题

国家开放大学作业答案

6.二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。

（教材课文原文）

2050, the world's population to rise to 9 billion from just over 7 billion currently. Proponents of genetically modified foods say they are safe and can boost harvests in bad conditions by protecting against pests, weeds and drought. This, they argue, will be essential to meeting the needs of a booming population in decades to come and avoiding starvation.

国家开放大学作业答案

Doug Gurian-Sherman, senior scientist for the food and environment program at the Union of Concerned Scientists, an advocacy group, said genetic engineering for insect resistance has provided only a modest increase in yields since the 1990s and drought-resistant strains have only reduced losses from drought.渝粤教育

(1).

A. By渝粤题库

B. In

C. Until

答案:

(2).

A. projected渝粤题库国开形成性考核答案

B. is projected

C. has been projected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:国家开放大学作业答案

(3).

A. even though

B. even

C. though

答案:

(4).国家开放大学作业答案

A. Furthermore国家开放大学作业答案

B. Moreover

C. However

答案:

(5).国开搜题

A. modestly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。

B. modest国开形成性考核答案

C. moderate

答案: