题目列表(包括答案和解析)
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Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing when you are happy. Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.
Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your house is your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away. If so, you have actually frightened the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting (筑巢) season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
【小题1】Some scientists believe that most of the time bird’s singing is actually ________.
A.an expression of happiness B. a way of warning
B.an expression of anger D. a way of greeting
【小题2】What is a bird’s “territory”?
| A．A place where families of other species are not accepted. |
| B．A place where a bird may shout at the top of its voice. |
| C．An area for which birds fight against each other. |
| D．An area which a bird considers to be its own. |
| A．Because they want to invite more friends. |
| B．Because their singing helps frighten outsiders away. |
| C．Because they want to find outsiders around. |
| D．Because their singing helps get rid of their fears. |
| A．By comparing birds with human beings. | B．By reporting experiment results. |
| C．By describing birds’ daily life. | D．By telling a bird’s story. |
| A．哭喊声 | B．令人惊愕的 | C．尖叫声 | D．尖叫的 |
完形填空
You've been away from us for three years; you told us a lie which I came to know not long ago.
On this special day for teachers across the country, I can 1 keep myself from telling your white lie to these who would lend me an ear.
Do you still remember the happy 2 about six years ago? We fixed our eyes upon you at your 3 . You , a beautiful young lady , 4 us that you would live in our village.
Soon after, we began to find you were part of your students and their simple honest parents. The villagers found their children 5 more time with their books 6 after doing their homework and housework. Yet they still 7 that one day you might leave. You 8 a smile all the time , which reduced to some degree （程度） their 9 of your leaving. You went all out in the 10 of your students , helping them not only in their studies but also in their tuition （学费） . You often emphasized to us the 11 of one's life , so that must have been what you were 12 in those five years!
One cold morning when class began , you entered the room 13 you had been crying 14 . In your class , we 15 but looked away from four eyes. You 16 for some time as if you were 17 to find the right world… you said you would go away and would never be back to teach because your boyfriend wanted you more….
On the following morning, we 18 you the very best and the villages gave you their 19 .The train took you away and your broken 20 .
The other day I happened to hear my parents chatting that you had lung cancer and left the world soon after you waved goodbye.
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Do you know insurance? Buying insurance is a 1 by which people can protect themselves 2 large losses. Protection against fire is one kind of insurance. Large numbers of people pay 3 sums of money to an insurance company. Although thousands of people have paid for fire insurance, only 4 will lose their homes by fire. The insurance company will pay for these homes out of the sums of money it has 5 .
The first modern fire insurance company was 6 in London, England, in 1666. A great fire had just 7 most of the city, and people wanted protection against 8 losses. The first company 9 rapidly. Soon other companies were founded in other areas.
Bemjamin Franklin helped form the first fire insurance company in America in 1752. He also 10 a new kind of insurance for 11 . The new insurance would offer protection against the loss of crops 12 storms.
In 1795, Benjamin Franklin helped start 13 new insurance company in America. This company, 14 offered life insurance, collected some money 15 from many different men. 16 a man died, his family was given a large sum of money. Today, this company is 17 in business.
Over the years, people have 18 from many new kinds of insurance when they have suffered from 19 accidents as car and plane crashes. 20 , almost everyone has some kind of insurance.
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