阅读短文，在其后空白处写出各单词的正确形式。单词的第一个字母已经给出。
The worst traveler in the world was Paul of San Francisco. Once he f____ from the U.S. to his hometown in Italy to see someone at home. The plane made a one-hour stop to get oil at an airport in New York. Paul thought he was in Rome. C____
, he got off the plane.
When nobody was there to meet him, Paul thought maybe the heavy t____ made his friends late. While looking for their address, Paul found that the old “Rome”had changed a lot. He found many high m____
buildings instead of old ones. He also found that many people spoke English but not Italian and that many street signs were w____
in English.
Paul knew very l____ English. So he asked a policeman in Italian the way to the bus station. He happened to meet a policeman who was also born in Italy and answered in the same l____
.
After twelve hours’ traveling round on a bus, the driver handed him over to a____ policeman. But this time, this policeman could only speak English. So paul asked the policeman why the Rome police employed（雇佣）so many people who spoke English as policemen.
Paul didn’t b____ he was in New York when he was told so. To get him on a plane to Italy, he was s____
to the airport in a police car.
根据句意及首字母提示写出单词。We can r_______ paper boxes and plastic bottles to protect the environment.
We'd better use handkerchiefs(手帕) instead of paper n______．
In the past, many people couldn't a______ their food.
If we want to c_______ our environment, we should reduce our waste.
We should turn off the l ______ while we aren't using it.
根据括号中所给词的适当形式补全短文。
Animals are ________ (people) friends. But many wild animals are facing the ____
___ (dangerous) of dying out, because the environment that they are living in has changed ___
___ (great). For example, their living area has become smaller and smaller because of ____
____ (pollute) and the development of cities. They have no room to live in except the zoo. And many of the wild animals now can’t find enough food ___
____ (eat). At the same time, man is killing off animals just for ____
___ (get) their fur, teeth and meat.
People should realize how serious the situation is and something should _______ (do) to protect the animals. We should set up some nature reserves so that animals can live ___
___ (free). And people shouldn’t ____
____ (allow) to kill the endangered (处于危险中的) animals. We should also do something to make our world cleaner. Fresh air, clean water and green grass are all important for animals. The ____
___ (die) of the endangered animals will bring a disaster (灾难) to human beings.
用括号中所给词的适当形式填空。That kind of bags is ________ (use), we can use it over and over again.
The river outside the city _______ (pollute) by the factory nearby in the past few years.
Those animals are ________ (give) food three times a day.
The scientists _________ (come) up with some good ideas to solve the serious problem already.
The soldiers are _______ (try) to save more people.
根据句意及汉语提示写出单词。A ______ (鲨鱼)is a dangerous animal.
Many _______ (法律) have been made to protect endangered animals.
The sea animals are all important to the ocean's _______ (生态系统).
Tigers are at the top of the food _______ (链条) in the grassland ecosystem.
Do you know the _______ (优点) of bike riding?
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