A bag is useful and the word "bag" is useful, too. Here is an interesting phrase , "to let the cat out of the bag". In meaning it is the same as "to tell the secret ". And there is an old interesting story about _ . Long ago, when farmers wanted to sell chickens at the market, they would usually just throw the chickens in cloth bags. But cats were cheaper than chickens at that time, so many farmers would put cats into the cloth bags but not chickens. One day, a woman asked a man for a chicken. The man gave her a cloth bag in which there was a cat. _ When the man opened the cloth bag, a big black cat ran out. Not a chicken! The man's secret was out and everyone knew it. Now when we say someone gives away a secret, we say "he lets the cat out of the bag". And that is the story where the interesting phrase came from. The writer wrote the story to tell us _ . A) the woman was smart B) how farmers sold their cats C) the phrase is useful D) where the phrase came from
D

When two English people meet,their first words will be"How do you do?"or"How are you?"After the reply"How do you do?"or"Fine,thank you.How are you?"they often talk about the weather.The reason for this is not simply that their weather is interesting and changeable but that the English people don't like talking about personal matters with people who are not friends.Talking about the weather can be a useful way of starting a conversation with a stranger in public. What's the answer to"How do you do?" A) Fine,thank you.How are you? B) How are you? C) How do you do? D) I'm fine,too.
C

Very hot weather is common in many parts of the world. Although hot weather just makes most people hot, it can cause medical problems and death. Floods, storms and other terrible natural events kill thousands of people every year. And we hear much about them in news reports. We general hear little about heat, which experts say may be nature's most dangerous killer. Health experts say that since the year 1900, very hot weather has killed more people in the United States than any other natural event. One year--- the unusually hot summer of 1980 heat caused about 1,700 deaths in the United States. In 1995, more than 600 people died in another heat wave in one city----Chicago, Illinois. Besides drinking lots of cool water , doctors say there are some other things to do to protect against the health dangers of heat. Stay out of the sun, if possible. Wear loose and light--colored clothes. Wear a hat while in the sun. Eat fewer hot and heavy foods. And, when possible, cook foods during cooler time of the day. If possible, rest more often. Health experts say these simple steps can prevent the dangerous health problems caused by heat. They will prevent sickness, help you feel better and may even save your life. About 1,700 people died of heat in the US _ . A) in 1900 B) in 1980 C) in 1995 D) in 2000
B

One day, a teacher was giving a speech to his students. He held up a glass of water and asked the class, "How heavy do you think this glass of water is?" The students' answers ranged from 20 g to 500 g. "It does not matter on the weight itself. It depends on how long you hold it. If I hold it for a minute, it is OK. If I hold it for an hour, I will have an ache in my right arm. If I hold it for a day, you will have to call an ambulance . It is exactly the same weight, but the longer I hold it, the heavier it becomes. " If we carry our burdens all the time, sooner or later, we will not be able to carry on, the burden becoming increasingly heavier. " "What you have to do is to put the glass down, rest for a while before holding it up again. " We have to put down the burden sometimes, so that we can be refreshed and are able to carry on. So before you return home from work tonight, put the burden of work down. Don't carry it back home. You can pick it up tomorrow. Whatever burdens you are having now on your shoulders, let it down for a moment if you can. According to the teacher, you may feel _ if you put down the burden sometimes. A) more stressed B) much heavier C) more relaxed D) much happier
C