题目内容
B. A quarter to four
C. A quarter to three
D. A quarter after three
智慧课堂密卷100分单元过关检测系列答案
单元期中期末卷系列答案A sign is another kind of language. Here are some of them that you see on the roads.
Number One is a sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers an hour. We see this sign when we are getting near a town. Number Two is a sign that we’re near a crossing. We must drive carefully. Number Three is a sign that there is a bend (拐弯) in the road. Again, we must drive slowly and carefully. It is not safe to go around a bend very fast. Number Four is a sign that there is another road coming in from the right. There is a junction (交叉) at this place. Number Five is a sign that there is a hill and Number Six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number Seven has the word “SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number Eight is a sign with the letter “P” on it. The letter “P” means “Parking”. At some places, there are the signs “No parking” or “No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.
【小题1】At the places where you see Sign 1, ____________.
| A．you are already out of a town |
| B．you still have thirty kilometers to go |
| C．there must be many houses and buildings not far away |
| D．there must be a town thirty kilometers away |
| A．near a sign with “P” on it in the daytime |
| B．near a sign with “No parking” on it |
| C．near a sign with “No waiting” if there’re no policemen there |
| D．near Sign 8 at any time |
| A．make driving even safer |
| B．show drivers the way |
| C．stop cars going too fast |
| D．learn another kind of language |
April 22 is Earth Day. Everyone on Earth should care about and protect the earth!
The earth has warmed by about 1°F (华氏度) over the past 100 years, but why and how?
Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. But many scientists say that people are doing many things which makes the earth warmer.
First, greenhouse effect (温室效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. Climate (气候) change is another important reason. Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.
When the earth becomes warmer, there may be more rain and a rise in sea level. It will affect the growth of plants, animals and people. On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.
People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. For example, we can use fridges less. We can tell more people about protecting the earth.
【小题1】Earth Day is probably set for people to ______.
| A．learn more about the earth | B．make full use of the earth |
| C．take better care of the earth. | D．study the warmth of the earth |
______ now.
| A．not very clear | B．completely secret | C．well known | D．not given yet |
| A．sea rising | B．climate change | C．nature's unbalance | D．people's activity |
| A．there is more rain now | B．we should protect the earth |
| C．we must stop pollution | D．sea level is getting higher |