奥鹏作业网国开（山东开放大学）25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、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.—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.—Oh, by the way, how was your report of the new batteries coming along
—___________________________.
A.It’s going pretty well
B.Just go ahead
C.Well, I’m afraid so
4.He is still a ______in handling such things.
A.green hand
B.visitor
C.adult
5.The current death rate is reduced _______10% compared with that of the year of 1980.
A.to
B.form
C.by
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。
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.
山东开放大学理工英语4答案：https://www.opzy.net/93808.html
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
