1、课时2 Section A (3a-3b)安徽人教版九年级下Unit 13 Were trying to save the earth!12346789基础巩固练提示：点击进入习题510111213答案呈现cruelindustrieslawsscientificsharkDBCBfood chainso farcut offfallen by14 at the top of能力提升练答案呈现1516BA1718CD19B2021DC2223BA24C一、根据首字母及汉语提示,完成下列单词的拼写。1.Its c(残忍的)of them to kill wild animals for mone
2、y.2.Machines have replaced human labour in many i (行业).3.The government has made some l(法律)to protect the wild animals.ruelndustriesaws4.We have to think of a s (科学的)way to solve the problem.5.I dont eat s (鲨鱼)fi n soup,and many of my friends also support me.cientifichark二、单项填空。6.【2021安徽宿州期末】Footbal
3、l is a popular sport._ my father _ my mother is interested in watching football matches.A.Either;or B.Neither;norC.Both;and D.Not only;but alsoD7.Look!A lot of people are waiting in line.Yes._ them is more than two _.A.A number of;hundredB.The number of;hundredC.The number of;hundredsD.A number of;h
4、undredsB【点拨】the number of意为“的数目”，作主语时谓语动词用单数形式，hundred前有数字时用单数形式。故选B。8.【中考安徽】Our class are much sure to win the basketball game _ Class Three.A.of B.in C.against D.from【点拨】against意为“反对；对抗”。C 9.(易错题)Mom,can I play ten more minutes?Son,playing computer games too often _ your eyes.A.are bad for B.is ha
5、rmful toC.are good for D.is helpful toB三、根据汉语意思完成句子,每空一词。10.维持海洋生态系统里的食物链的平衡很重要。Its very important to keep the balance of the_ _ in the oceans ecosystem.foodchain11.到目前为止，你学了多少首英文歌曲？How many English songs have you learned _ _?so far12.他在工作时中指不小心被机器切掉了。His middle finger was accidentally _ _ by the ma
6、chine while he was working.cut off13.这台机器的价格已经降了10%。The price of the machine has_ _10 percent.fallen by14.听！贾森在练歌房里引吭高歌。Listen!Jason is singing _ _ _ _ his voice in the singing hall.at the topof四、完形填空。Its not hard to protect the earth!These tips help save natural resources(资源)such as water,energy,an
7、d animals or make less 15 _ gases(气体)which can cause global warming.So get green and give the tips a try.These methods are very 16 _.Everyone can make a difference!15.A.useful B.harmful C.healthy D.fresh16.A.easy B.hard C.cheap D.expensiveBARecycle and ReuseWe can collect empty cans and 17 _,and sen
8、d them to a recycling center.Most community trash services will 18 _ your cans and bottles.17.A.handbags B.backpacksC.bottles D.cups18.A.set up B.cheer up C.turn up D.pick upCD Choose batteries(电池)that are reusable,and then 19 _ them when they die.Be sure to recycle all batteries to keep some harmfu
9、l metals 20 _ entering the environment.19.A.repeat B.recycle C.receive D.require20.A.to B.in C.of D.fromBDImprove the OutdoorsPlanting a tree that loses its leaves in autumn in the garden has lots of 21 _.The trees shade(树荫)will cool the house in summer.22 _ the trees leaves fall,sunlight will help
10、warm the house in winter.21.A.happiness B.troubleC.advantages D.disadvantages22.A.Before B.After C.So D.AlthoughCBTrees help clean the air we breathe.They 23 _ oxygen(氧气)and make CO2 less.23.A.produce B.faceC.change D.appearATake part in clean-up days at a beach or park.Never 24_.When you visit a park or beach,be sure you throw your trash in trash cans.24.A.surf B.swim C.litter D.picnicC
