题目

下列关于蚯蚓的叙述中，不正确的是( ) A.排出的粪便会污染土壤 B.肠可以蠕动 C.富含蛋白质，可做鱼类的饵料 D.疏松土壤，促进植物生长 答案：A。蚯蚓在土壤中穴居生活，以植物的朽根、枯枝落叶和其他有机物为食，其活动可疏松土壤，促进植物生长；排出的粪便富含有机质，可提高土壤肥力，不会污染土壤；蚯蚓肠壁有发达的肌肉，肠可以蠕动；蚯蚓富含蛋白质，可做鱼类的饵料或动物的饲料。听力 请听下面5段对话或独白。每段对话或独白有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，每个小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第1段材料，回答第1至3题 1．Whom is the woman buying the gift for? [　　] A．Her cousin. B．Her nephew. C．Her brother. 2．How much does the woman want to spend on the gift? [　　] A．Twenty dollars. B．Thirty dollars. C．Fifty dollars. 3．What is the first gift the clerk suggests to the woman? [　　] A．A football. B．A pen and a pencil. C．A desk lamp. 听第2段材料，回答第4至6题 4．What is the woman preparing? [　　] A．Lunch. B．Afternoon tea. C．Supper. 5．What is the woman going to do? [　　] A．Lay the table. B．Cut the bread. C．Open the orange juice. 6．What's the possible relationship between the two speakers? [　　] A．Teacher and student. B．Doctor and patient. C．Host and guest. 听第3段材料，回答第7至9题 7．How many flights to Munich are there on the evening of the fifteenth? [　　] A．One.　　B．Two.　　C．Three. 8．Which flight does the man want to take? A．4:45　　B．5:45　　C．7:00 9．What does the woman promise him to do? [　　] A．Phone to tell him about the booking. B．Send him the ticket he has booked. C．Pick him up and take him to the airport. 听第4段材料，回答第10至12题 10．Why is the man asking about Professor David? [　　] A．The man is going to take the professor's course. B．The man is going to ask the professor some questions. C．The man is going to work for the professor. 11．How old is Professor David? [　　] A．In his sixties. B．In his fifties. C．In his forties. 12．What's Professor David like? [　　] A．Short and fat. B．Tall and thin. C．Old and untidy. 听第5段材料，回答第13至15题 13．What was the speaker? [　　] A．A student who was about to graduate. B．A student who graduated years ago. C．A student who had just entered the school. 14．What made the speaker feel sad as well? [　　] A．To have no chance to learn. B．To begin a new life. C．To be separated from each other. 15．What was the main purpose of the speech? [　　] A．To say good-bye to their school. B．To thank their parents and teachers. C．To encourage all the schoolmates.