题目内容
Last Thursday when I got to the airport, I ____I had left my ticket at home.
A. forgot B. realized C. believed D. seemed
B
【解析】略
Right in the middle of the town are some long ponds(水池). They are only about half a foot deep. The men of Symi dug out the earth to make the ponds.
Over each pond is a low cover. It is made of glass that you can see through.
At night, sea water is taken into the ponds. The next day, the hot sun shines through the covers. The sun light turns the water into vapor(水蒸气) and the vapor goes up from the ponds. The salt is left behind.
As it goes, the vapor became mist. On the inside of each cover, the little drops of mist run together to make big drops. These drops run down the sides of the cover, filling other ponds with fresh water.
The salt left in the ponds is washed out each night. Then more sea water is taken in. The factory is ready for the next day's work. The covers and other parts of the factory cost very little. Sea water and sun cost nothing. Most people of Symi are poor. So to them this new way of getting fresh water seems wonderful.
1. Where are the little drops made into big drops?
A. On the inside of the covers.
B. In the ponds with fresh water.
C. On the walls of the salt water ponds.
D.Between the fresh water and the salt water.
2.The men of Symi dug some long ponds .
A. in order to keep sea water
B. in order to get hot water inside
C. in order to fill them with fresh
D. in order to get fresh water
3.Which picture shows the right way to get fresh water in Symi?
|
4.Which of the following is NOT true?
A. The sea water is taken into the ponds at night every day.
B. There is a very big river running through the town to the sea.
C. The people in Symi can get fresh water from the factory.
D. People may see the water in the ponds through the cover.
When you look at your food, some ingredients are easy to see. For example, there is cheese on your pizza and butter on your bread. But our meals are also filled with ingredients you can’t see. And you might be surprised to learn just how much those hidden (隐藏的) ingredients affect your health.
Salt is a perfect example of an ingredient that you might not notice, even when you eat a lot of it. More than 75% of the salt we eat is hidden in restaurant meals, fast food and processed (加工过的) food , such as French fries, hot dogs and even biscuits.
Salt is important to us. It keeps our muscles (肌肉）working and our nerves (神经）sending messages through the whole body. Salt can be used to clean teeth, to make our skin smooth or added to a relaxing bath. Salt is also used to help make food last (持续) longer.
However eating too much salt can cause heart problems. For a long time, heart trouble has been regarded as an adult problem, but new research shows that salt is starting to affect kids. Then how much salt is safe for kids every day? Let's look at the following chart:
|
Ages |
Amount of Salt Every Day |
|
1—3 years old |
2 grams |
|
4—6 years old |
3 grams |
|
7—10 years old |
5 grams |
|
11 or more than 11 years old |
6 grams |
Kids should not eat more than that.
1.The underlined word “ingredients” means “__________” in Chinese.
|
A．配料 |
B．热量 |
C．营养 |
D．脂肪 |
2.The first two paragraphs tell us _________.
|
A．how much salt people need every day |
B．the result of eating too much salt |
|
C．the importance of salt in our everyday life |
|
|
D．though people eat much salt every day, they may not notice it |
3.Which of the following is Not the use of salt according to the passage?
|
A．Salt keeps muscles working. |
B．Salt helps to make food last longer. |
|
C．Salt helps to see clearly. |
D．Salt can be used to clean teeth. |
4. If Tim is 10 years old, how much salt should he eat every day?
|
A．2 grams. |
B．3 grams. |
C．5 grams. |
D．6 grams. |
5. What can we learn from the passage?
|
A．Young children have few heart problems according to the new research. |
|
B．A lot of food we eat has hidden salt in it, even some biscuits. |
|
C．Salt can be used instead of soap while we’re taking a bath. |
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D．A five-year-old boy should have at least six grams of salt every day. |