,　　　　　　　　　　　　　[学生用书单独成册])

　　课时作业12　(A卷)

　　Ⅰ.品句填词

　　1．Those cats ____________(scream) for hours.

　　2．We ____________(wait) for him for two hours.

　　3．The dollar ____________(climb) steadily all week.

　　4．He ____________(help) himself to my stationery.

　　5．The children ____________(have) a lot of fun.

　　6．She is very tired.She ____________(work) all morning.

　　7．Tom ____________(see) about a work permit for you.

　　8．The tobacco industry ____________(try) to improve its image.

　　9．It has come to our knowledge that you ____________(cheat) the company.

　　10．The group ____________(live) in a remote corner of the Cambodian jungle.

　　答案：1.have been screaming　2.have been waiting　3.has been climbing　4.has been helping　5.have been having　6.has been working　7.has been seeing　8.has been trying

　　9．have been cheating　10.has been living

　　Ⅱ.阅读理解

　　A

　　Have you ever thought of taking a train and having an adventure？Riding the train can be a real adventure.That is how I feel every time I take Amtrak.I often take a four­hour trip to visit my children.Every time I take this trip I never know what will happen.

　　Last week when I was on the train，there was a man sitting by himself in the back of the train carrying on a mobile phone conversation in another language.It was loud and disturbed most of the people on the train.I think it was annoying.

　　Fortunately I sat next to a wonderful old lady who was taking a two­day trip by train.She said her two daughters were worried at the thought of driving for three days to reach her home，although she had no trouble driving.The train ride was the only choice for her.She loved to look out of the window and watch the world go by on the train.

　　She was fun to talk to and asked me when my children started being parents.That is a very good question.Both of us are old and have children.She asked that same question from time to time.

There are always many people on the train from all walks of life(各个阶层)，different countries，and many languages.Riding the train is a great way to increase your knowledge and learn all kinds of cultures.If you get hungry，you can buy food in the food car at any time.If you need to use a restroom，there is always one for you.