问题 名词解释

胶样癌(colloid carcinoma)

答案

参考答案:

又称为黏液癌。具有黏液分泌功能的上皮组织来源的恶性肿瘤,多见于胃肠,由于形成的腺腔无相应的排出管道,分泌的黏液堆积在腺腔中,腺体崩解而形成黏液池,肉眼癌组织呈灰白色,湿润,半透明如胶冻样,故而得名。

阅读理解

阅读理解。

     Your home is a safe place, right? Think again.

     Many serious accidents happen in people's homes. Could you please prevent these accidents? Yes. Many

accidents happen because people are careless. So be careful! Here are some tips about safety.

    ·Don't stand on chairs. Many people may fall off chairs and hurt themselves.

    ·Keep the floor dry, and you won't slip (滑) or fall.

    ·Be away from matches. Even a cigarette (香烟) can easily start a fire. Don't use water to put out fires.

Use salt instead.

    ·Be careful with knives! Many people cut themselves in the kitchen. Never touch the broken bottles, doors

or windows. Glass can also cause the most serious cuts.

    ·Don't keep poisons (毒药) in the kitchen.

    ·Never use electrical appliances (电器设备) in the shower. Dry the floor before you use them, or

electricity can hurt you!

    ·Keep children away from hot water and hot drinks. They can be dangerous. But adults often forget it.

    ·Look through the peephole (门镜) when you hear the knock on the door. Don't let strangers in.

     In a word, we should learn to protect ourselves and stay away from danger.

1. You must ______ when there is water on the floor. [ ]

A. be careful

B. fall

C. slip

D. be happy

2. Salt ______ be used for putting out fires. [ ]

A. can

B. can't

C. are

D. shouldn't

3. It's not safe for people to ______. [ ]

A. touch switches (电源插座) with the wet hands

B. touch the broken bottles and glass

C. let strangers in

D. All of the above

4. Water and drinks can be dangerous for ______. [ ]

A. both children and adults

B. children

C. adults

D. neither children nor adults

5. Open the door at once when you hear someone knocking at the door. Is it right? [ ]

A. Yes, it is

B. No, it isn't

C. Yes, they are

D. No, they aren't

多项选择题