and foxes，are easy to film.All you have to do is make_a_trail in front of the camera by dragging something that smells good to the animals over the ground，big animals，such as lions and tigers，can be photographed as they bound happily back their families and dinner，if a movie actor is nearby，the well­trained animal will pay no attention to him.However，the audience may imagine that the actor escaped a terrible death by the skin of his teeth.

　　21．Dogs which help blind people must learn ________.

　　A．to obey all orders

　　B．to obey only safe orders

　　C．never to cross roads

　　D．to cross roads when ordered to do so

　　22．Race horses are hard to train because they are ________.

　　A．faster than other horses

　　B．smaller than other horses

　　C．cleverer than other horses

　　D．more nervous than other horses

　　23．What does the underlined phrase "make a trail" mean here in the last paragraph?

　　A．Place something to attract the animal.

　　B．Give the animal a certain task.

　　C．Order the animal to do things.

　　D．Follow the animal to hunt.

　　24．Lions can be photographed easily when ________.

　　A．they are following a trail of something that smells good to them2·1·c·n·j·y

　　B．they are returning to their families

　　C．they have been trained to work with other animals

　　D．they do not know a movie­actor is nearby

　　25．Which of the following statements is NOT true?

　　A．Animals can be useful.

　　B．Dangerous wild animals can be trained.

　　C．The well­trained animals can learn the difference between the unwanted people and friends.

　　D．Animals can become interested in their tricks.

　　 B

I began working in journalism(新闻工作)when I was eight. It was my mother's idea. She wanted me to "make something" of myself, and decided I had better start young if I was to have any chance of keeping up with the competition.

With my load of magazines I headed toward Belleville Avenue. The crowds were there. There were two gas stations on the corner of Belleville and Union. For several hours I made myself highly visible, making sure everyone could see me and the heavy black letters on the bag that said THE SATURDAY EVENING POST. When it was supper time, I walked back home.

" How many did you sell, my boy?" my mother asked.

" None."

" Where did you go?"

" The corner of Belleville and Union Avenues."

" What did you do?"