课时作业(二十四) [必修4 Module 6 Unexplained Mysteries of the Natural World] (限时：45分钟) Ⅰ.单项填空 1．Although these vegetables _____ quite well to the extreme climate, they are harvested poorly.【来源：21cnj*y.co*m】 A．adapt B．attach C．apply D．appeal 2．Send them your application if you want to_____this job. A．go over B．go by C．go in for D．go for 3．We were very busy and had to eat out all the time. It ended up costing a_____． A．wealth B．possession C．luck D．fortune 4．He never dreamed about _____ a chance to goabroad. A．there is B．there to be C．there being D．there is to be 5．Jack is said _____ abroad, but I don't know what university he studied in. A．to study B．to be studying C．to have been studied D．to have studied 6．After _____ the luggage at the railway station, we left for the exhibition in a taxi. A．claiming B．demanding C．deserving D．obtaining 7．It was very difficult to _____ the excited football fans.21·cn·jy·com A．set down B．put down C．come down D．calm down 8．The ad says that one can lose 10 pounds in a week if using the product, but I'm _____ about that. 【版权所有：21教育】 A．concerned B．sceptical C．optimistic D．anxious 9．As she sounded_____to tears, I stopped blaming her.21cnjy.com A．closely B．close C．next D．nearly 10．The bell _____ the end of the period rang, _____ our heated discussion. A．indicating; interrupting B．indicated; interrupting C．indicating; interrupted D．indicated; interrupted 11．Although the wind has _____ and the rain remains steady, you still need a raincoat. A．turned up B．gone back C．died down D．blown out 12．It was a fine day yesterday. I _____ have taken my raincoat with me. A．couldn't B．needn't C．shouldn't D．mustn't 13．Our house has reached the point_____so many things need_____and it's so hard to find the time to fix them.21世纪教育网版权所有 A．at which；to do up B．that；doing up C．on which；to put up D．where；putting up 14．I can't understand why you all _____ think that I did it. 21教育网 A．shall B．will C．can D．should 15．—Wow, isn't this handsome device the most popular iPhone5? Can I have a look at it? —_____． A．No, you can't B．Sorry, it's expensive C．Sure, it looks good D．Yes, go ahead Ⅱ.阅读理解 If a diver surfaces too quickly，he may suffer the bends.Nitrogen(氮)dissolved(溶解) in his blood is suddenly liberated by the reduction of pressure.The consequence，if the bubbles(气泡)accumulate in a joint，is sharp pain and a bent body—thus the name.If the bubbles form in his lungs or his brain，the consequence can be death.21·世纪*教育网 Other air-breathing animals also suffer this decompression(减压) sickness if they surface too fast：whales, for example.And so, long ago, did ichthyosaurs.That these ancient sea animals got the bends can be seen from their bones.If bubbles of nitrogen form inside the bone, they can cut off its blood supply.This kills the cells in the bone, and consequently w ... ...
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