BBelow is a table which shows the melting(液化)and boiling points of common substa

题型：不详难度：来源：

B
Below is a table which shows the melting(液化)and boiling points of common substances.Study the table.Then do Numbers 4—7.

Substance	Melting point(C)	Boiling Point(C)
Water Alcohol Nitrogen Oxygen	0 –117 –210 -218	100 78 –196 –183

4.The underlined word‘substances"means‘a type of"_________.
A.matter        B.liquid            C.solid         D.gas
5.Which of the four should be a liquid at-90 degrees?
A.water         B.alcohol           C.nitrogen      D.oxygen
6.Mixing alcohol and water is often used to wash windscreens of cars during the wintertime because _________.
A.it is easier for alcohol to change into gas
B.alcohol is not easily separated from water
C.alcohol freezes at lower temperature than water
D.the mixture is not expensive
7.In order to change water from a solid to a liquid energy must be _________.
A.removed       B.added             C.created       D.destroyed

答案

小题1:A
小题2:B
小题3:C
小题4:B

解析

略

举一反三

The year was 1932. Amelia Earhart was flying alone from North America to England in a small single—engined aeroplane. At midnight, several hours after she had left Newfoundland, she ran into bad weather. To make things worse, her altimeter (高度表) failed and she didn"t know how high she was flying. At night, and in a storm, a pilot is in great difficulty without an altimeter. At times, her plane nearly plunged (冲) into the sea.
Just before dawn, there was further trouble. Amelia noticed flames (火焰) coming from the engine. Would she be able to reach land? There was nothing to do except to keep going and to hope.
In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe. When she returned to the United States, she was honored by President Hoover at a special dinner in the White House. From that time on, Amelia Earhart was famous.
What was so important about her flight? Amelia Earhart was the first woman to fly the Atlantic Ocean alone, and she had set a record of fourteen hours and fifty—six minutes.
In the years that followed, Amelia Earhart made several flights across the United States, and on each occasion (时刻) she set a new record for flying time. Amelia Earhart made these flights to show that women had a place in aviation (航空) and that air travel was useful.
71. Which of the following statements is NOT the difficulty which Amelia Earhart met in her flight from north America to England?
A. She was caught in a storm. B. The altimeter went out of order.
C. Her engine went wrong. D. She lost her direction.
72. When Amelia Earhart saw flames coming from the engine, what did she do?
A. She did noth

ing but pray for herself.
B. She changed her direction and landed in Ireland.
C. She continued flying.
D. She lost hope of reaching l

and.
73. According to the passage, what was Ameli

a Earhart’s reason for making her flights?
A. To set a new record for flying time.
B. To be the first woman to fly around the world.
C. To show that aviation was not just for men.
D. To become famous in the world.
74. Which of the following statements was NOT mentioned?
A. She was the first woman who succeeded in flying across the Atlantic Ocean alone.
B. She showed great courage in overcoming the difficulties during

the flight.
C She was warmly welcomed in England, Europe and the United States.
D. She made plans to fly around the world.
75. Which of the following would be the best title for th

e passage?
A. Amelia Earhart—First Across the Atlantic.
B. Amelia Earhart—Pioneer in Women’s Aviation.
C. A New Record for Flying Time.
D. A Dangerous Flight from North America to England.

题型：不详难度：| 查看答案

(C)
Driving a car at high speed along a highway seems to be fun. You need only to follow the bright traffic signs beside the highways and it will take you to where you wish.
But to a London taxi driver, driving is not an easy job. A taxi driver has to have not only good driving skills but also a good knowledge of the city of a London, from the smallest lane to the most popular bar around. He has to be at the service of all kinds of passengers at all times.
A certain London taxi driver told of his job as follows.
During the night it is quite usual for him to stop two or three times for some refreshments (点心). He said. "I never drink when I"m working ---- I would lose my licence."
He normally goes home between 2 and 3 O"clock in the night, There are times he has to stay longer and try to make more runs. He said, "That"s the worst thing about working for yourself. If you don"t make the money, no one is going to give it to you."
London taxi drivers not only ‘take" but also ‘give" , Every summer hundreds of children from London will go for a day at the sea--- by taxi! Their rides are paid by the taxi drivers, and these fares all go to the ‘London Taxi Fund for Underprivileged Children." At the sea. they are met by the mayor, and a lunch party is also held in honour of the taxi drivers and the children. After a happy day running around the sea beaches and visiting the market, the children go home again-- by taxi, and free of charge, of course!
62. To be a London driver is not easy because ______.
A. he has to follow the bright traffic signs
B. he has to have good driving skills and know all the places in the city
C. he has to serve all kinds of passengers at all times
D. both B. and C
63. The London taxi drivers _______.
A. work hard because on one would give them money for doing nothing
B. never stop driving in the city
C. only work between 2 and 3 o"clock in the night
D. are very rich
64. The author of the passage says that _______.
A. the taxi driver works longer than is necessary
B. the more runs the taxi driver makes, the more he gets
C. the taxi driver doesn"t like to work for others
D. the taxi drivers in the city go to the seaside to attend a party every year.
65. London taxi driver _______.
A. take money because they have to pay for the children"s ride
B. go to the sea for a day in the summer
C. pay the fares for the poor children to the sea for a day once every year
D. give the poor children a free ride for a day at the sea once every year
66. The underlined words Underprivileged Children mean children _______.
A. of low income families B. who like to travel in taxi
C. who wish to go to sea but have no money D. from London

题型：不详难度：| 查看答案

(D)
People living in the country enjoy several advantages that people living in the city cannot enjoy.
They are in close contact with nature. They make friends with trees and stones. They breathe fresh air. They fight with strong winds. They listen to the song of birds.
This contact with nature is good for health. There are many diseases that are common in the city, but are not to be found in the country, For example, near-sightedness is almost unknown to country people.
Because of the absence of cars, one can walk more freely in the country than in the city, There are no rules of the road nor traffic signs to obey.
People living in the country can easily get fresh vegetables, fresh fruit and fresh milk, Are they get them at lower prices than in the city.
Country life is economical in other ways, too. There are practically no temptations to waste money.
Country people are mostly honest. They say what they mean, and make and keep promises with sincerity. They do not put on air (摆架子). They do not pretend to have those ridiculous manners which are necessary in what we call polite society.
67. What CAN’T country people often enjoy?
A. Musical concerts.          B. Fresh air.
C. Song of birds.             D. Close contact with nature.
68. What is probably more expensive in the country than in the city?
A. Vegetables.          B. Beer.          C. Milk.           D. Fruit.
69. What is NOT true of country life?
A. The traffic accident rate is very high in the country.
B. Living in the country saves one a lot of money.
C. Country people enjoy better health than the city people.
D. Country people are honest.
70. Which of the following statements is true according to the passage?
A. People living in the country enjoy no advantages.
B. People living in the city are in close contact with nature.
C. People living in the country suffer from more diseases than those living in
the city.
D. The prices of farm products are lower in the country than in the city.
71. Which of the following would be the best title for the passage?
A. The Disadvantages of Living in the Country.
B. The Expenses of Living in the Country.
C. Country Life.
D. Healthy Country People.

题型：不详难度：| 查看答案

Here’s an amazing way to get a hard-boiled egg into a bottle, even though the mouth of the boiled is smaller than the egg! What’s more, you don’t even need to touch the egg to get it to go in!
For this experiment you will need:
·a hard-boiled egg
·a glass bottle with a mouth just slightly smaller than the egg (a fruit-drink bottle works well)
·a 8-cm by 8-cm(3-inch by 3-inch)piece of newspaper
·a match
Remove the shell from the egg. Set the egg on the mouth of the bottle to see that the egg does not fit through the mouth.
Light the paper. Remove the egg from the mouth of the bottle and drop the burning paper into the bottle. Before the fire goes out, set the egg back onto the mouth of the bottle. Within a few seconds the egg will squeeze(挤) through the mouth and into the bottle.
As it entered the bottle, the egg may have broken into pieces. This happens when the diameter(直径) of the egg is more than about 0.5 cm(about 3/16 inch) larger than the diameter of the bottle’s opening.
Why does the egg slide into the bottle, even though no one is pushing it? Because the pressure of the air is pushing it. Before the burning paper is put into the bottle, the pressure of the air inside is the same as outside. The burning paper, however, heats the air inside. This causes the air inside to expand. When the egg is placed on top of the bottle, it seals(封住) the bottle. When the fire goes out, the air inside cools. As it cools, the air contracts(紧缩), and the pressure of the air inside becomes less than the pressure outside. Then, the higher outside pressure pushes the egg into the bottle!
小题1:The best title of this passage can be .

A．An interesting story	B．The pressure of the air
C．Egg in a bottle	D．Egg, bottle and match

小题2:What don’t you need in this experiment?

A．Eggs.

B．Water.

C．Bottles.

D．Paper.

小题3:Why will the egg break into pieces while entering the bottle?

A．Because of the burning paper.

B．Because the diameter of the egg is too larger than that of the bottles opening.

C．Because it is cool inside the bottle.

D．Because the pressure of the air inside is larger.

小题4:What is the most important to get the egg into a bottle?

A．A match.

B．A fruit-drink bottle.

C．The pressure of the air.

D．The burning paper.

题型：不详难度：| 查看答案

D
I know what you’re thinking: pizza（比萨饼）? For breakfast? But the truth is that you can have last night’s leftovers in the a.m. if you want to.
I know lots of women who skip breakfast（不吃早餐）, and they have a ton of different excuses for doing it. Some say they don’t have time; others think they’re “saving” calories（卡路里）；still others just don’t like breakfast food .
But the bottom line is that eating in the morning is very important when you’re trying to lose weight. “Eating just about anything from 300 to 400 calories would be better than nothing at all,” says Katherine Brooking R.D., who developed the super-easy eating plan for this year’s “SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with vegetables, and you stick to one small piece.
Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southern California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal.
So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers—it may sound crazy, but if it works for you, do it! I find if I tell myself, “You can always eat it tomorrow,” I put away the leftovers instead of eating more that night. Try it. You may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects.
68. The word “leftovers” in Paragraph 1 probably means_______.
A. food remaining after a meal         B. things left undone
C. meals made of vegetables           D. pizza topped with fruit
69. What can we infer from the text?
A. Working women usually have breakfast in a hurry.
B. Many people have wrong ideas about breakfast.
C. There are some easy ways of cooking a meal.
D. Eating vegetables helps save energy.
70. According to the last paragraph, it is important to________.
A. eat something for breakfast           B. be careful about what you eat
C. heat up food before eating it          D. eat calorie-controlled food
71. The text is written mainly for those________.
A. who go to work early        B. who want to lose weight
C. who stay up late            D. who eat before sleep

题型：不详难度：| 查看答案