大学英语四之大学英语(下)习题库.doc

Unit 1 Animals and Plants Exercises I．Conversation：Choose the right answer to finish the following conversation. 1．— You are confident about the job interview, aren’t you? — I’m well prepared and feel I’ve got everything they need. A．Well, maybe. B．It’s hard to say. C．I hope so. D．Sure, I am. 2．— One week’s time has been wasted. — I can’t believe we did all that work for ________. A．something B．nothingC．everything D．anything3．— Let’s go and have a good drink tonight. — ________ Have you got the first prize in the competition? A．What for ? B．Thanks a lotC．Yes, I’d like to D．Why not ?4．— Go for a picnic this weekend, OK? — __A____. I love getting close to nature. A．I couldn’t agree more. B．I’m afraid not.C．I believe not. D．I don’t think so5．— I’m terribly sorry to have caused you so much trouble. — _______. A．My pleasure B．I couldC． D．’s nothing II．Reading Comprehension Each of the following two passages is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. Decide on the best choice. Passage 1 Almost everyone loves trees, but did you know that trees can help people heal faster? It’s true. According to the International Society of Arboriculture, hospital patients have been shown to recover faster when offered a view with trees. And while trees certainly benefit any landscape, they are actually important to our daily well-being. Trees improve the quality of the air around us by absorbing dust and other particulates. Their leaves also take in noxious (有害的) gases, such as carbon dioxide, carbon monoxide (一氧化物) , and sulfur dioxide (二氧化硫) , before we ever breathe them in. Plus, trees protect us from the effects of the sun and from rain, hail, and snow and produce clean oxygen for us to breathe. If the health of people and the environment are not high on your list of concerns, perhaps your wallet is: Trees make economic sense. A home surrounded by trees costs less to cool