1、【填句补文】The acid rain(酸雨)is said to be caused by pollution from oil wells in the Gulf of Mexico. Car exhaust gases are also a problem. Local volcanic eruptions make the problem even worse. Nevertheless, with enough money and effort, researchers say that many of the problems could be solved and the rate of erosion reduced. ________.
A、The problem, however, is not just a European one.
B、That is enough to have caused some of the ancient carvings to become seriously damaged already.
C、However, the Mexican government does not have enough money to do the work, and needs to spend what money it has on the Mexican people.
D、Acid rain is how a familiar problem in the industrialized countries in Europe.
2、【填句补文】All children in the United States have to receive an education, but the law does not say they have to be educated at school. A number of parents prefer not to send their children to school. ________. There are about 300,000 home-schoolers in the United States today.
A、Critics also say that most parents are not well qualified to teach their children.
B、In some countries, however, children are educated by their parents.
C、Learning starts with the children's interests and questions.
D、Children who are educated at home are known as "home-schoolers."
3、【填句补文】Doctors believe that secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers often breathe in the smoke from other people’s cigarettes.________. The US Environmental Protection Agency reports that about 53，000 people die in the United States each year as a result of exposure to secondhand smoke.
A、The risk is even higher for children who live in homes where both parents smoke.
B、In the United States，nine million children under the age of five live in homes with at least one smoker.
C、This smoke is called secondhand smoke.
D、No one knows for sure why Mr. Gilson has lung cancer.
4、【填句补文】Many beginning interviewers are afraid that they are forcing the other person to answer questions and have no right to inquire about his personal secrets. ________. Unless the person really hates being interviewed, he is delighted that somebody wants to interview him.
A、This fear is almost 100 percent unnecessary.
B、This doesn't necessarily mean that it will go well.
C、Most men and women lead lives that are uninteresting.
D、Both of you need time to get to know each other.
5、【填句补文】The author says that interpersonal relations should be taught as a required course in every school, along with reading, writing, and mathematics. ________. That is at least as important as how much we know.
A、Much of what has been said about strangers also applies to relationships with family members and friends.
B、He keeps looking over the other person's shoulder, as if hoping to find someone more interesting in another part of the room.
C、Every time you meet someone in a social situation, give him your undivided attention for four minutes.
D、In his opinion, success in life depends mainly on how we get along with other people.