问题 选择题

化学与生产、生活密切相关。下列说法中,不正确的是(  )

A.“血液透析”利用了胶体的性质

B.服用铬含量超标的药用胶囊会对人体健康造成危害

C.人类超量碳排放及氮氧化物和二氧化硫的排放是形成酸雨的主要原因

D.绿色化学的核心是利用化学原理从源头上减少和消除工业生产对环境的污染

答案

答案:C

血液是胶体,血液透析就是利用了胶体的性质,A项正确。铬是重金属,对人体有害,B项正确。碳排放不是形成酸雨的原因,C项错误。绿色化学就是要把污染物从化学原理设计时就消除掉,D项正确。

单项选择题
阅读理解

D

We all know what it is like to be unable to turn your head because of a cold in the muscles of your neck, or because an unexpected twist has made your neck ache and stiff. Your whole body feels tight. The slightest move makes you jump with pain. Nothing could be worse than a pain in the neck.

That is why we use phrase to describe some people who give you the same feeling. We have all met such people.

One is the man who always seems to be clapping his hands—often at the wrong time—during a performance in the theater. He keeps you from hearing the actors.

Even worse are those who can never arrive before the curtain goes up and play begins. They come hurrying down to your row of seats. You are comfortably settled down, with your hat and heavy coat in your lap. You must stand up to ;et them pass. You are proud of your self—control after they have settled into their seats…Well, what now…Good God, one of them is up again. He forgot to go to the men’s room, and once more you have to stand up, hanging on to your hat and coat to let him pass. Now, that is “a pain in the neck.”

Another, well—known to us all, is the person sitting behind you in the movies. His mouth is full of popcorn;  he is chewing loudly, or talking between bites to friends next to him. None of them remain still. Up and down, back and forth, they go—for another bag of popcorn, or something to drink.

Then, there is the main sitting next to you at a lunch counter smoking a smelly cigar. He wants you to enjoy it too, and blows smoke across you food into your mouth.

We must not forget the man who comes into a bus or subway car and sits down next to you, just as close as you will let him. You are reading the newspaper and he leans over and stretches his rock so that he can read the paper with you. He may even turn the paper to the next page before you are ready for it.

We also call such a person a “rubber neck,” always stretching his neck to where it does not belong, like neighbors who watch all your visitors. They enjoy invading your privacy. People have a strong dislike for rubbernecks. They hate being spied upon.

68.Where can you find this passage?

A.Medicine dictionaries.                          B.Social science books,

C.Kids’ comic books.                              D.Science text books.

69.How do you feel when late comers walk back and forth in front of you in a cinema?

A.Ignored.              B.Bored.                C.Disturbed            D.Relaxed.

70.A “rubber neck” often                  .

A.says bad words behind people.

B.quarrels face to face with neighbors.

C.bargains the price with sales women

D.asks about other people’s business

71.Which of the follow is a “pain on the neck”?

A.Someone who helps you find your seat in a movie theatre.

B.Someone who smokes in a smoking section on a train.

C.Someone who throws trash out of his car window on the highway.

D.Someone who goes to the doctor for his severe pain on the neck.