[填空题]The girl asked excitedly, "do we have a cat " The girl asked excitedly ______.

[填空题]The girl asked excitedly, "do we have a cat "
The girl asked excitedly ______.

[单项选择]A Do animals have a culture What do we mean by “culture” Lately social scientists have begun to ask if culture is found just in humans, or if some animals have a culture too. When we speak of culture, we mean a way of life a group of people have in common. Culture includes the beliefs and attitudes we learn. It is the patterns of behavior that help people to live together. It is also the patterns of behavior that make one group of people different from another group. Our culture lets us make up for having lost out strength, claws, long teeth and other defenses. Instead we use tools, cooperate with one another, and communicate with language. But these aspects of human behavior, or “culture”, can also be found in the lives of certain animals. Animals can make tools, for example. We used to think that the ability to use tools was the dividing line between human beings and other animals. Lately, however, we have found that this is not the case. Chimpanzees(黑猩猩) can not only use
A. A chimpanzee can learn to use sign language to make sentences.
B. Other animals can invent tools.
C. Knowledge and communication are no longer signs of only human behavior.
D. The line dividing human culture from animal culture is not as clear as we might think.

[单项选择]How can we get rid of garbage Do we have enough energy sources to meet our future energy needs
These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the some time it can save the land to hold garbage.
For a long time, people buried garbage or dumped(倾倒) it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil(化石) fuels. As we use up our fossil fuel supplies, we might be able to use garbage as an energy source.
Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. (78) The heat that is produced by burning garbage is used to boil water. The steam that is prod
A. About 2 million metric tons of garbage is burned in some power plants in Paris, France each year.
B. In a modem society, more and more garbage is produced each year.
C. Using garbage is a good way to solve the problem of energy shortage.
D. It will be too expensive to use garbage as an energy sourc