社会治安秩序，是指由《中华人民共和国治安管理处罚条例》及其他治安法规所确认和维系的社

读图，选择正确的描述

A．A→B段，石油供过于求

B．A→B段，石油严重短缺

C．B→C段，石油需求没有增加

D．C→D段，石油供不应求

阅读下面短文并回答问题，然后将答案写到答题卡相应的位置上（请注意问题后的词数要求）。

（1） Everybody has to buy or sell things sometimes．Even students who are usually not very rich, have

to learn something about making purchases intelligently．As a student, you may find, for example, that

you need to buy a walkman or winter clothing．You may want to buy a television or a used car．Of course,

you want to get good value for your money．If you are considering a major purchase, or any purchase you

should remember several important things．

（2） Study first, and then decide what to buy．You can get enough information just by reading books

and advertisements．

（3） Remember that a high quality product will probably last longer and work better．Of course, for a

superior product you ______________．An inferior product may not give you the same quality,

but the price could be low．A poor quality product could be expensive and a valuable one could be on sale

at a greatly reduced price．

（4） Don't worry．Take your time．After you decide what product you want to buy, go to many

different stores．If you cannot find the product you want, you try to order it directly from the factory or

ask the store to order it for you．

（5） Look for a good deal．If you wait, you may probably find that your product will go on sale and

you may be able to save 10,20, or even 50 percent of the original price．

（6） Finally, before you buy, make sure that that product is guaranteed．If you find the lowest possible

price, you will generally be happy with your purchase and also keep more money in the bank．

小题1:What is the main idea of the passage? （no more than 8 words）

小题2:What should you care more while shopping? （no more than 5 words）

小题3:Fill in the blank in Paragraph 3 with proper words．（no more than 5 words）

Of course, for a superior product you

小题4:How can you get good value for your money? （list at least two things） （no more than 20 words）

小题5:What does‘the underlined’word“one"’refer to in paragraph 3？

（1）有如图所示装置，为实现下列实验目的，其中y端适合于作入口的是______（多项）

A瓶内盛液体干燥剂，用以干燥气体

B瓶内盛液体洗涤剂，用以除去某气体中的杂质

C瓶内盛水，用以测量某难溶于水的气体的体积

D瓶内贮存气体，加水时气体可被排出

E收集密度比空气大的气体

F收集密度比空气小的气体

（2）浓H₂SO₄和木炭在加热时发生反应的化学方程式是______．图2中虚线框中的装置可用来检验浓硫酸与木炭粉在加热条件下反应产生的所有气体产物，

填写下列空白．

①A中无水硫酸铜的作用______．

②证明SO₂一定存在的现象是______．

③C中酸性KMnO₄溶液的作用______．

④证明CO₂一定存在的现象是______．

一个人的对人、对己、对事、对物的态度是（）

A.与生俱来的

B.在先天因素基础上形成的

C.是实践锻炼的结果

D.通过学习而形成的

E.被环境影响而形成的

描述绒毛膜的发生和演变过程。