Before a problem can be solved, it must be obvious the problem itself is. A. what B that C which D why 题目和参考答案——青夏教育精英家教网—

题目内容

Before a problem can be solved, it must be obvious ______ the problem itself is.

　　A. what B that C which D why

【答案】

【解析】本题考察的是名词性从句中主语从句。从句中缺表语，排除B和D；又因题目没有给出problem的范围，故选A；

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Some British and American people like to invite friends for a meal at home. You should not be upset (不安的) if your English friends don't invite you home. It doesn't mean they don't like you!?Dinner parties usually start between 7p．m．and 8p．m．, and end at about 11p．m． Ask your host (主人) what time you should arrive． It's polite to bring flowers, chocolates or a bottle of wine as a gift．

Usually the evening starts with drinks and snacks (小吃)． Do you want to be extra (特别地) polite? Say how much you like the room, or the pictures on the wall. But remember — it's not polite to ask how much things cost．

In many families, the husband sits at one end of the table and the wife sits at the other side． They eat with their guests．

You'll probably start the meal with soup or something small, then you'll have meat or fish with vegetables, and then dessert (甜点心) followed by coffee． It's polite to finish everything on your plate and to take more if you want it．

Did you enjoy the evening? Call your hosts the next day, or write them a short “Thank you” letter． British and American people like to say “thank you” all the time!

An English friend doesn't invite you to his or her dinner, which ＿＿＿＿．

A． means he or she doesn't like you B． means he or she likes you

C． doesn't mean he or she likes you D． doesn't mean he or she doesn't like you

You are going to attend a dinner party and ＿＿＿＿．

A． you'd better bring a certain present with you

B． you must leave home for it at 7 p．m．

C． you should ask your host when you should leave

D． you must arrive before 8 p．m．

It's impolite ＿＿＿＿＿．

A． to say that you like the host's room very much

B． for a guest to ask the host the price of the things in the room

C． for a guest to have drinks and snacks before the evening

D． for the host and the hostess (女主人) to sit and eat with their guests

In which order will you eat or drink the following things at a meal？

A． Snacks, vegetables, meat, coffee．

B． Coffee, drinks, soup, fish, vegetables, dessert．

C． Soup, meat with vegetables, dessert and coffee．

D． Drinks, soup, something small, fish and vegetables．

What is the proper way to express your enjoyment of the evening？

A． Before leaving for home, you should say, “Thank you for inviting me．”

B． When you shake hands with your host, you should say, “I did enjoy the evening．”

C． You can write a “Thank you” letter to your host after that．

D． You should finish everything on your plate and take more if you want it．

BUKHANNON, West Virginia—Two rescue teams slowly moved along a two-mile path on Monday night to the site of a coal mine explosion that trapped 13 miners, who had not been heard from since the early morning accident.
Meanwhile, at a nearby church, more than 250 family members and friends gathered, waiting for updates（最新报道）on the rescuers’ progress.
The miners were trapped at about 6:30 and many families weren’t informed of the accident until about 10 a.m-more than three hours after it happened. “It’s very upsetting, but you’ve got to be patient, I guess,” said John Helms, whose brother, Terry, was trapped in the mine.
The trapped miners were about 260 feet underground and about 10,000 feet from the Sago Mine’s entrance, said Roger Nicholson, general counsel from International Coal Group.
At a late night news conference, Nicholson said one team had advanced about 4,800 feet in the four hours since entering the mine just before 6 p.m. Another team entered the mine about 30 minutes later.
He said the crew was very experienced, with some members having worked underground for 30 to 35 years. The miners were equipped with about one hour of breathable oxygen each. The company has not released the names of the miners.
The teams test the air about every 500 feet, and have to disconnect (remove) the power to the phones they use to communicate with the surface before doing that. “We don’t want to be energizing anything if it’s in an atmosphere with burnable gases,” Kips said. The cause of the explosion was not immediately known. High levels of carbon monoxide were detected shortly after the explosion, which delayed rescue efforts, but those levels have since subsided（减退）, authorities said.
53. According to the passage, we can infer that ______.
A. all the miners who were trapped underground were still alive
B. communication with the trapped miners was cut off
C. the two rescue teams entered the mine at the same time
D. the rescue started as soon as the accident happened
54. If the first team advanced at an average speed, they could dig about ______ per hour.
A. 1,000 feet          B. 2,400 feet           C. 1,200 feet                D. 4,800 feet
55. Where can the passage be seen?
A. In a magazine.                                     B. In a newspaper.
C. In a science book..                            D. On an advertisement.
56. Which of the following shows the position where the miners were trapped?

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1.According to the passage, we can infer that ________．

A．all the miners who were trapped underground were still alive

B．communication with the trapped miners was cut off

C．the two rescue teams entered the mine at the same time

D．the rescue started as soon as the accident happened

2.If the first team advanced at an average speed, they could dig about _______ per hour．

A．1,000 feet B．2,400 feet C．1,200feet D．4,800feet

3.Where can the passage be seen?

A．In a magazine． B．In a newspaper．

C．In a science book．． D．On an advertisement．

4.Which of the following shows the position where the miners were trapped?

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