[填空题]
Directions: The following passage contains 10 errors. In each case only one word is involved. You should proofread the passage and correct it in the following way:

One of America’s most important exports is her modern music. American
popular music is playing all over the world. It is enjoyed by people of all 79. ______
ages in all countries. Because the lyrics are English, nevertheless people not 80. ______
speaking English enjoy it. The reasons for its popularity are its fast pace and
rhythmic beat.
The music has many origins in the United States. Country music,
coming from the suburban areas in the southern United States, is one source. 81. ______
Country music features simple themes and melodies describe day to day 82. ______
situations and the feelings of country people. Many appreciate this music
because of the emotions expr

Teamwork is just as important in science as it is on the playing field or in the gym Scientific investigations are almost always carded out by teams of people working together. Ideas are shared, experiences are designed, data are analyzed, and results are evaluated and shared with other investigators. Group work is necessary, and is usually more productive than working alone.
Several times throughout the year you may be asked to work with one or more of your classmates. Whatever the task your group is assigned, a few rules need to be followed to ensure a productive and successful experience.
What comes first is to keep an open mind, because everyone’s ideas deserve consideration and each group member can make his or her own contribution. Secondly, it makes a job easier to divide the group task among all group members. Choose a role on the team that is best suited to your particular strengths. Thirdly, always work together, take turns, and encourage each othe

Today, moving and changing are as much a part of a modern business way of life as they are a part of the native American’s or the early pioneer’s way of life. And the trend is toward even greater mobility, particularly within the management sector of American business.
In the early fifties, only eight or nine out of a hundred young men changed their jobs within the first three years with the company. In the past few years, almost thirty-five percent of the college-graduated work force changed jobs within the same period. These people want to intensify their management training. Since most jobs take only a year to a year and a half to master, in order to continue learning, they have to make a job change. Even company presidents tend to be seen as mobile specialists, staying with one company an average of only five years.
Company presidents in the United States today tend to be young men who begin their careers with educational backgrounds in engineer
A. America can provide countless jobs
B. the young businessman carries on the early pioneer's way of life
C. learning of a job does not take too much time
D. it is quite easy for young people to get a job