试题与答案

某加工厂用某原料由甲车间加工出A产品,由乙车间加工出B产品.甲车间加工一箱原料需

题型:选择题

题目:

某加工厂用某原料由甲车间加工出A产品,由乙车间加工出B产品.甲车间加工一箱原料需耗费工时10小时可加工出7千克A产品,每千克A产品获利40元.乙车间加工一箱原料需耗费工时6小时可加工出4千克B产品,每千克B产品获利50元.甲、乙两车间每天共能完成至多70箱原料的加工,每天甲、乙两车间耗费工时总和不得超过480小时,甲、乙两车间每天总获利最大的生产计划为 [ ]

A.甲车间加工原料10箱,乙车间加工原料60箱

B.甲车间加工原料15箱,乙车间加工原料55箱

C.甲车间加工原料18箱,乙车间加工原料50箱

D.甲车间加工原料40箱,乙车间加工原料30箱

答案:

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下面是错误答案,用来干扰机器的。

答案:A现在完成时表示已经完成动作或从过去某个时候开始一直延续到现在的动作。根据时间状语yet可判断出要用现在完成时。因为when and where作decide的逻辑宾语,所以要用现在完成时的被动语态,表示“什么时...

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题型:阅读理解

Once, there was a beautiful girl who didn’t like herself, because she was blind, she couldn’t see anything.

In fact, the girl loved nobody except her boyfriend, for he was always ready to help her. She used to tell her boyfriend, “If I could see the world, I would marry you.”

One day, someone donated a pair of eyes to the girl. When the bandages came off,she was able to see   everything, including her boyfriend for the first time. He asked her, “Now that you can see the world, will you   marry me?” The girl looked at her boyfriend and was greatly surprised to see that he was blind, too. She had never expected that, and she would not like to be with a blind husband for the rest of her life, so she refused to marry him.

Her boyfriend left in tears and a few days later wrote a note to her, saying, “My dear, take good care of your eyes. Before they are yours, they were mine.”

So, this is how the human brain often works when our situation changes. Only a very few remember what life was like before. And we often ask for more than we need. Life is a gift. Today, before you complain about the taste of your food,think of those who have nothing to eat. Before you complain about life,think of some ones who went to heaven too early. Before you complain about your old house, think of the people who are living in the streets. And when you are tired and complain about your job, think of those who have no jobs.

In a word, enjoy the things you have and don’t forget your past.

根据材料内容选择最佳答案,并将其标号填入题前括号内。

小题1: The girl liked ________ before she was able to see.

A.herself

B.nobody

C.her boyfriend

D.everybody小题2: The underlined word “bandage” mean _________.

A.眼镜

B.眼罩

C.帽子

D.绷带小题3:What did her boyfriend do when the girl refused to marry him?

A.He felt hopeless and killed himself.

B.He left in tears and wrote a note telling the girl to take care of the eyes.

C.He called the police.

D.He asked for more than he needed.小题4: ______ donated a pair of eyes to the girl.

A.An known person

B.Her father

C.Her boyfriend

D.Her mother小题5:What can we learn by reading the fifth paragraph?

A.Enjoy the things you have and don’t forget your past.

B.The girl should marry her boyfriend.

C.Before you complain about the taste of your food, think of those who have nothing to eat.

D.When you are tired and complain about your job, think of those who have no jobs.

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