24秋国开电大春四川开放大学理工英语4单元自测7（10分）答卷参考答案

单元自测7（10分）答卷

单元自测7（10分）答卷

单元自测7（10分）

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。

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. — What would you like to have for breakfast?

—??????????????????????.?Would you like to have a taste?

A. Twisted cruller, I bought it this morning

B. I already had my breakfast

C. Breakfast is the most important?meal of the day国开搜题

答案:

2.— 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:

3.—?What is U.S’s?experience?in food safety management?

—??????????????????????.

A. S. do better in this point

B. They are improving the legal system all the time and very strict in law enforcement一网一平台答案渝粤搜题国开形成性考核答案

C. Some illegal traders care about nothing but making money渝粤题库

答案:渝粤搜题

4.The technology has several advantages?????????earlier attempts to engineer meat?in vitro?.一网一平台答案

A. in comparison of

B. in comparison to

C. compare with

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.The problem is uneven distribution,???????870 million suffering from hunger.

A. left

B. to leave

C. leaving

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。渝粤搜题

（教材课文原文）国开搜题

1. 2050, the world's population 2 to rise to 9 billion from just over 7 billion currently. Proponents of genetically modified foods say they are safe and can boost harvests 3 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.

4 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 5 reduced losses from drought.

(1).__1__渝粤教育

A. By

B. In一网一平台答案

C. Until

答案:

(2).__2__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。

A. projected

B. is projected

C. has been projected

答案:

(3).__3__

A. even though渝粤教育

B. even

C. though

答案:一网一平台答案

(4).__4__渝粤搜题

A. Furthermore渝粤题库

B. Moreover

C. However

答案:

(5).__5__

A. modestly

B. modest

C. moderate

答案:渝粤搜题一网一平台答案