Unit 5 What are the shirts made of一、单项选择1I found _ not very easy _ to ride a bike.Athat; learn Bit; to learnCthat; to learn Dit; learn2If all business goes paperless, at least one million tons of paper will be _ a year.Aused Bsaved Ccopied Doffered3Its sports time. Most _ students in Class 1 are playing football on the playground.Aboy Bboys Cboys Dboys4What _ the fire?I have no idea. I just saw many people pouring water onto the house on fire.Astopped Bcaused Cmade Ddrew5. I love this song because it _ soft and beautiful.Asmells Btastes Csounds Dlooks二、根据汉语完成句子6这儿不允许大声喧哗。Talking noisily _ _ _ here. 7在来这里的路上我们目睹了多起交通事故。Many _ _ _ seen on our way here.8在法国人们说什么语言？What languages _ _ in _？9百分之三十的湖面遭到了污染。30 _ of the _ of the lake is polluted.10人们对这款产品的原材料一无所知。Nothing _ _ about the _ of the product.三、语法专练11Some students in this school _ abroad as exchange students every year.Asent Bsend Care sent12It _ that Donald Trump has been chosen as American president.Asays Bwas said Cis said Dseemed13You can go out if your homework _Aare finished BfinishesCis finished Dwill be finished14How clean your car is!Thank you. It _ very often. Ais washed Bwashes Cwas washed Dwashed15Chengdu is a greener city now because more and more trees _ every spring.Awere planted Bare plantedCwill be planted答案一、1.B2.B3A点拨：辨析法。名词作定语修饰其他名词用单数形式。 4.B5.C二、6.is not allowed点拨：主谓一致法。主语为Talking noisily，与allow为被动关系。7traffic accidents were8.are spoken；France9percent；surface10.is known；materials三、11.C点拨：students与send为被动关系；every year提示时态为一般现在时。12C点拨：句意：据说唐纳德特朗普当选美国总统了。据说用It is said时态为一般现在时，因为主语从句为现在完成时。13C14.A15B点拨：关键词提示法。句中关键词is, every spring均提示句子时态为一般现在时。