砷

单词拼写。根据下列句子各句句意和空白之后的汉语提示词，在横线上写出空缺处

相应单词的正确形式，每空只写一词。

1. If you _____ (按, 压) the button, the machine will start.

2. I'm trying to _____ (安排) my work so that I can have a couple days off next week.

3. Is there a _____ (联系) between your leaving home and my cooking?

4. As we know, it is very difficult to learn _____ (高等的) math well.

5. The air has less _____ (氧气) in it at high altitudes than it does at low altitudes.

6. It is bad _____ (礼貌) to spit in public places.

7. She is very _____ (挑剔的) about what she eats.

8. A lot of measures have been taken to stop rivers from being _____ (污染).

9. They have been _____ (争吵) with each other for almost two hours.

10. He tied the bandage _____ (紧紧地) so that it would stay in place.

［1］Five years ago, David Smith wore an expensive suit to work every day. “I was a clothes addict”. He jokes. “I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled”. Today David wears casual clothes—khaki pants and sports shirt to the office. He hardly ever wears a necktie. “I’m working harder than ever”. David says, “And I need to feel comfortable”.

[ 2 ]More and more companies are allowing their office workers to         in the United States. The change from formal to casual office wear has been gradual. In the early 1990s, many companies allowed their employees to wear casual clothes on Friday. This became known as “dress-down Friday” or “casual Friday”. “What started out as an extra one-day-a-week benefit for employees has really become an everyday thing.” said business consultant Maisly Jones.

[ 3 ]Why have so many companies started allowing their employees to wear casual clothes? One reason is that it’s easier for a company to attract new employees if it has a casual dress code. “Many young people don’t want to dress up for work”, says the owner of a software company, “So it’s hard to hire people if you have a conservative dress code”. Another reason is that people seem happier and more productive when they are wearing comfortable clothes. In a study 85 percent of employers said that they believe that casual dress improves employees’ motivation. Only 4 percent of employers said that casual dress has a negative influence on productivity. Supporters of casual office wear also argue that a casual dress code helps them save money. “Suits are expensive, if you have to wear one every day”, one person said, “For the same amount of money, you can buy a lot more casual clothes”.

小题1:Why does David Smith wear casual clothes now? (no more than 8 words)

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小题2:List three advantages of casual office wear according to the text? (no more than 10 words)

①______________________________________________________________________________

②______________________________________________________________________________

③______________________________________________________________________________

小题3:Fill in the blank in Paragraph 2 with proper words. (no more than 6 words)

_______________________________________________________________________________

小题4:What does it mean by a conservative dress code? (no more than 10 words)

_______________________________________________________________________________

小题5:What’s the main idea of Paragraph 3? (no more than 18 words)

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决定家庭外部结构的是（）.

A.家庭成员的成分和数量

B.家庭成员之间的相互关系

C.家庭成员的健康状况

D.家庭成员的收入及受教育水平

某工厂2015年4月25日签订合同购买一幢旧厂房，6月14日在房地产权属管理部门办理了产权转移证书。该厂房所占土地开始缴纳城镇土地使用税的时间是（）月份。

A.4

B.5

C.6

D.7

侦察小队进入灾区时，应规定返回时间，并用灾区电话与基地保持联络。如没有按时返回或通信中断，待机小队应立即进入救护。