阅读理解。 Waste can be seen everywhere in th

题型:阅读理解

问题:

阅读理解。

     Waste can be seen everywhere in the school. Some students ask for more food than they can eat and

others often forget to turnoff the lights when they leave the classroom. 

     They say they can afford these things. But I don't agree with them.

     Waste can bring a lot of problems. Although China is rich in some resources (资源), we are short of

(缺乏) others, for example, fresh water (淡水). It is reported that we will have no coal (煤) or oil to use

in 100 years. So if we go on wasting our resources, what can we use in the future and where can we

move? Think about it. I think we should say no to the students who waste things every day. Everybody

should stop wasting as soon as possible.

     In our everyday life, we can do many things to prevent waste from happening, for example, turn off

the water taps (水龙头) when we finish washing, turn off the lights when we leave the classroom, try

not to order more food than we need, and so on. Little by little, everything will be changed. Waste can

be stopped one day if we do our best.

1. From the passage we know that some students often ______ in the school. [ ]

A. eat too much

B. don't work hard

C. waste things

D. throw rubbish everywhere

2. Which is not mentioned in this passage? [ ]

A. Fresh water.

B. Forest.

C. Oil.

D. Coal.

3. What may happen in 100 years? [ ]

A. We may still have enough oil.

B. We may still have enough coal.

C. We may have a bottle oil.

D. We may have no coal or oil to use.

4. Which of the following is right? [ ]

A. Waste brings problems.

B. Waste can bring no problem.

C. China is rich in fresh water.

D. Students never waste things.

5. Which is the best title (题目) of this passage? [ ]

A. Stop wasting

B. School lift

C. Waste in the school

D. Rich Resources in China

考点:健康环保类阅读
题型:阅读理解

鉴别原发性肝癌与转移性肝癌可查()

A.ALP

B.CEA

C.AFP

D.GGT

E.ALT

题型:阅读理解

氢溴酸在医药和石化工业上有广泛用途。下图是模拟工业制备氢溴酸粗品并精制流程:

根据上述流程回答下列问题:

(1)混合①中发生反应的化学方程式为____________。

(2)混合①中使用冰水的目的是__________。

(3)操作Ⅱ和操作Ⅲ的名称分别是__________、_____________ 。操作Ⅲ一般适用于分离____________混合物。(选填编号)

a.固体和液体     b.固体和固体     c.互不相溶的液体   d.互溶的液体

(4)混合②中加入Na2SO3的目的是__________ 。

(5)纯净的氢溴酸应为无色液体,但实际工业生产中制得的氢溴酸(工业氢溴酸)带有淡淡的黄色。于是甲乙两同学设计了简单实验加以探究:甲同学假设工业氢溴酸呈淡黄色是因为含Fe3+,则用于证明该假设所用的试剂为________,若假设成立可观察到的现象为 __________ 。乙同学假设工业氢溴酸呈淡黄色是因为________,其用于证明该假设所用的试剂_______________。

题型:阅读理解

物流服务实现产业化必须具有哪些前提条件

题型:阅读理解

531工程中保证金的业务卡片不再从属于资金卡片。一个资金卡片可对应多个业务卡片,一个业务卡片也可关联多个资金卡片。

题型:阅读理解

透析患者钙摄入途径包括:()

A.饮食

B.钙制剂

C.维生素D的应用

D.诺维乐

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