1:单选题
[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:单选题
[填句补文]David Guterson and his wife teach their three children at home. Guterson says that his children learn very differently from children in school： ________. For example， when there is heavy snowfall on a winter day， it may start a discussion or reading about climate， snow removal equipment， Alaska， polar bears （北极熊）， and winter tourism. A spring evening when the family is out watching the stars is a good time to ask questions about satellites and the space program.
A、Some parents prefer teaching their children at home because they do not believe that public schools teach the correct religious values.
B、Learning starts with the children‘s interests and questions.
C、Interestingly， results show that home-schooled children quite often do better than average on national tests in reading and math.
D、Critics also say that most parents are not well qualified to teach their children.
3:单选题
Because of the bad weather， the sports meet had to be ________.
A、shut down
B、done away
C、taken off
D、called off
1:正确答案：C
答案解析：前文提到完成这项工作需要很多的钱，答案转折说到了墨西哥没有这么多的钱去做。两句之间有隐含的逻辑关系。
2:正确答案：B
答案解析：此空要填的是home-schoolers与其他孩子学习的不同点，因此选B。
3:正确答案：D
答案解析：题目意思：由于天气不好，运动会不得不取消了。本题是短语意义区分题。A 关闭，停业 B 废除，终止（与with连用） C 离开，起飞 D 取消