河南开放大学24春理工英语4单元自测5【标准答案】

单元自测5（10分）

试卷总分:100 得分:100



一、挑选填空：阅览下面的对话或语句，从A、B、C三个选项中选出一个能填入空白处的最好选项。



1.—You know a good schedule brings efficiency to the work.



—___________________________.??

A.Not at all. I enjoyed it.

B.I see your point.

C.I think it\'s a bad idea.



2.—What errands did you have to do today?



—___________________________.?

A.I’m in no hurry

B.Done one, and another one to do.

C.You can’t be serious



3.—Jeff, I\'d appreciate it if you could help me with the opening speech I\'m giving next week.



—___________________________,?but I\'ll have some time between five and six p.m.

A.Don’t mention it

B.Yes, it’s so quiet as we expected

C.Well, it\'s pretty busy this morning



4.This is a highly ______?new heating system.



?

A.efficiency

B.efficient

C.efficiently



5.The box is ?hold these things.

A.too small not to

B.too small to

C.so small to



6.二、阅览了解：阅览下面的短文，依据文章内容从A、B、C三个选项中选出一个最好选项。



Climate change has caused a rise in sea levels. This has increased 1 salt in fresh water used on coastal farms. As a result farmers are increasingly 2 to use fields close to the sea.



Scientists call this process “salinization” which means a mixture of salt and water. Salinization is reducing the world’s irrigated lands 3 1 to 2 percent every year.



But a farmer in the Netherlands is now using a mixture of sea and fresh water to grow healthy and tasty vegetables. Marc Van started with an 4 . “We put in a lot of plants in the fields and then we put in, put them in fresh water and in sea water and all the varieties between it, and then we see which variety is surviving and which variety is 5 .”

(1).__1__

A.an amount of

B.the amount of

C.a number of

(2).__2__

A.unable

B.able

C.possible

(3).__3__

A.to

B.by

C.at

(4).__4__

A.investment

B.examination

C.experiment

(5).__5__

A.living

B.dead

C.dying