第4题: [单项选择]The main cause of pollution is ______. A. the release of artificial or natural substances into the environment B. the production of new industrial goods C. increased amounts of a natural substance D. our ever-increasing population 参考答案:A 答案解析:事实细节题。根据第一段最后一句,污染的两大主要源头是人造材料和自然物质的排放,因此选择A)项。[避错指导]B)项“新工业产品的生产”只是污染的源头之一;C)项“自然物质的数量增长”本身并不造成污染,只
第5题: [单项选择]{{I}} Questions 18 ~21 are based on the monologue about taking care of dogs.{{/I}}How long should food be left before a dog A. As long as possible, B. At least 30 minutes. C. All day. D. No more than 30 minutes. 参考答案:D 答案解析:[听力原文]18-21
When you have a dog it is necessary to care for it carefully. In return you will be
第28题: [单项选择]下列没有错别字的一句是(* A. 韩信是西汉五朝开国的功臣,他善于调兵谴将、运用智谋,将敌军打败. B. 他一想起母亲含幸茹苦操持家务的身影,在学习上就不由得更加努力了. C. 看到班主任满面春风地走进教室,同学们猜测这次考试,大家的成绩一定不错. D. 经他一说,大家这才晃然大悟,纷纷改变了对老刘的看法. 参考答案:C 答案解析:本题测试字形正确与否.A句中的“调兵谴将”应为“调兵遣将”.B句中的“含幸茹苦”应为“含辛茹苦”.D句中的“晃然大悟”应为“恍然大悟”.