Unit 13 课时2 Section A（3a-4c）-2025-2026学年九年级下册英语同步辅导（人教版2012）

课时2>Section A(3a~4c) 了重点知识 式，谓语动词一般也用复数形式。表示数量 的多少时，一般用great,large或small来修 L.harmful形容词，意为“有害的，导致损害的”。 饰number。 eg:Playing computer games too often is harmful to our eyes.玩电脑游戏太频繁 eg:There are a great number of books on different subjects in our school library. 对我们的眼睛有害。 学校图书馆里有许多不同学科的书。 知识拓展harmful的反义词是harmless,意 A number of boys and girls were playing in 为“无害的；无恶意的”。名词是harm,意为 the park.公园里有好多男孩和女孩在玩。 “伤害，损害”。 He has a small number of books. eg:It's just a bit of harmless fun. 他有几本书。 开个小玩笑罢了，并无恶意的。 He may look fierce,but he means no harm. (2)the number of是指“总数”，意思是“… 他可能看上去很凶，但并无恶意。 的数量”，与复数名词连用，但动词却需要用 2.辨析a number of与the number of 单数形式。 (l)a number of表示数量，意思是“一些、许 eg:The number of students in our class is 多”。它所修饰的名词或代词总是复数形 fifty.我们班的学生人数是50。 基础巩固 一、根据句意和首字母提示完成单词。 B.joined;joins 1.Sharks are at the top of the food c C.took part in;joins 2.The poor fisherman can't a his D.took part in;joins in children's education. 7.The boy has some money to the 3.Sweet food can be h to children's books. health. A.spend B.pay for 4.Many young girls want very much to work C.takes D.cost in the fashion i 8.-Listen! children are reading in 5.S studies have to be done to make the classroom. it clear. -Yes. them is about 70. 二、单项选择。 A.The number of;A number of 6,My brother a swimming club.He B.The number of;The number of often the swimming training. C.A number of;The number of A.joined;takes part in D.A number of;A number of 9.Not only my sister but also I good 四、补全对话。 at dancing. A: (16) A.is B.am C.are D.was B:I often go to the zoo.I like animals.They l0.It's necessary for the phubbers(低头族)to are our friends.What about you? the time they spend on their A: (17 smartphones. B:Do you think that we are supposed to keep A.cut off B.cut down the animals in cages? C.cut up D.cut in A: (18)I think the animals will be 三、根据汉语完成句子。 happier if they live in a free environment. 11.这道著名而昂贵的菜在南亚尤其受欢迎。 For example,let birds live in the forest and This famous and expensive dish is water animals live in lakes or swamps. in South Asia. B: 19) 12.你有没有意识到每次你享用鱼翅汤时都杀 A:Of course,but it's hard to provide the 死了一整条鲨鱼？ animals with a safe environment because of Do you that you're killing a environmental pollution and over-hunting whole shark you enjoy from human beings if they aren't kept in the shark fin soup? cages or zoos. 13.没有了腿，这个男孩再也不可能像以前 B: (20) 样快乐地奔跑着踢足球。 A.You're right,but we can try to create a Without a leg,the boy can free environment. run and play soccer happily like B.No,I'm afraid it's bad for them. before. C.Would you like to go to the zoo with me? 14.我认为每个人都应该使用公共交通。 D.Me,too. I think that E.What would you like to do in your spare time? 15.所有的这些小事加起来，成了有影响的大事 F.I agree with you.Different animals need All these small things different habitats. and become big things that make a difference. 能力提升 一、用所给词的适当形式填空。 2.John's mother is a (law).He is 1.Eating too much junk food is very very proud (harm). 3.We need to be more (science) about this problem. 14.We should ride bikes to school instead of 4.We are asked to collect (reuse) driving to school. plastic bottles. A.rather than to driving 5.WildAid and the WWF are two B.would rather drive (environment)protection groups. C.rather than drive 二、选择适当的词语填空。 15.I paid 50 dollars for the bike. 6.We (try/are trying)to save the A.cost...on sharks. B.spent...in 7.There (used/use)to be a lot of C.spent...on sharks. 四、完形填空。 8.Some kinds of animals are Natural resources are things that we use (endangered/danger)nowadays. and come from the earth.Our natural resources are limited(有限的).This means 9.Some of the rivers has become/ that they will not (16)forever.Some have become)polluted. are renewable,like when you plant a new tree l0.Manatees(海牛) (eats/eat)about when you (17)one down.Others are 100 pounds of food a day. not renewable,like when you dig coal ( 三、选出与画线部分意义相同或相近的选项。 out of the (18).Once it is used,it is 11.Sharks can no longer swim when they gone. were cut off their fins. People realize the (19)that the A.not...any longer earth's natural resources are limited,and can B.not...anymore do things to help conserve(节约)those C.not...any much resources. (20)you try to conserve a 12.Using reusable bags is helpful to the natural resource,you try to use less of it so it environment. does not get used up so (21).One way A.is good at that people conserve fuel,like gasoline,is by B.is good for riding a bicycle or walking when the (22) C.is good with is short instead of driving everywhere. 13.I'm lucky to have enough money for the Water is a very important natural resource new house. because we all need it to stay 23).We A.afford to buy can conserve water (24)making sure B.pay that our pipes and taps do not leak().We C.spend can also make (25)choices to conserve water,like only using the dishwasher or the run away.Others take no notice at all but washing machine when they are full.Everyone quietly walk in another direction.Wild animals can make contributions to protecting natural only eat a man when they are afraid that he resources tries to kill their young ones,or when they 16.A.last B.spread are shot at and made angry. C.burn D.change 26.If you meet a lion which is not very hungry, 17.A.turn B.cut C.put D.move 18.A.station B.building A.it will become your friend quickly C.ground D.brick B.it will try to catch you 19.A.news B.plan C.it will leave you C.decision D.fact D.you must shoot it 20.A.When B.Although 27.Very old wild animals are dangerous to C.Whatever D.Whether men because 21.A.slowly B.hard A.they like to eat men C.regularly D.fast B.they can't avoid men 22.A.money B.space C.they can't catch other small animals C.place D.distance D.they are too old to catch men 23.A.alive B.alone 28.Wild animals usually kill and eat C.asleep D.awake A.sheep and other small animals 24.A.about B.for C.by D.with B.moving lions 25.A.generous B.funny C.humans C.wise D.surprising D.only women and children 五、阅读理解。 29.Wild animals will catch and eat a man if he Some people think that all wild animals are dangerous.In fact,few of them will eat a A.tries to run away man if left alone.If you meet a lion,I'm sure B.makes them angry you will run away.But even a lion will avoid a C.doesn't kill their young ones man if it is not very hungry.Lions only kill D.leaves them alone and eat men when they have grown too old to 30.In the writer's eyes, catch their food,such as sheep and other A.wild animals are always dangerous animals.Some animals get frightened when B.young wild animals are dangerous they only smell a man.Some of them stand C.wild animals only eat sheep and look at a man for a little while before they D.wild animals are not always dangerous22.harmful 23.disturbs 24.deaf 25.measures 五、26.D27.A28.C29.B 课时2 Section A(3a~4c) 基础巩固 -、l.chain 2.afford 3.harmful 4.industry 5.Scientific 二、6.A7.B8.C9.B10.B 三、l1.especially popular 12.realize;each/every time 13.no longer 14.everyone should use public transportation 15.add up 四、16.E17.D18.B19.F20.A 能力提升 -、l.harmful 2.lawyer 3.scientific 4.reusable 5.environmental 二、6.are trying 7.used 8.endangered 9.have become 10.eat 三、11.A12.B13.A14.C15.C 四、16.A点拨：根据上句“Our natural resources are limited(有限的).”可知， 自然资源是有限的，不会永远延续下去。 last意为“持续，延续”，符合语境。故 选A。 17.B点拨：句意为：有些资源是可再生的， 如当你砍下一棵树，就要栽一棵树。cut down意为“砍下”，符合语境，与“plant'” 相对应。故选B。 18.C点拨：根据常识可知，煤通常深埋在地 下，故此处是指从地下挖出煤。故选C。 19.D点拨：句意为：人们意识到地球上的 自然资源是有限的这个事实…自然资 源有限是个事实，故用fact,选D。 20.A点拨：句意为：当你想尽力节约自然 资源时，你可以试着少用它…。when 意为“当…时候”，符合语境。选A。 21.D点拨：句意为：…你试着少用自然 资源时，自然资源就不会如此快速地消 耗完。因为少用，所以不会很快用完。 fast意为“快速地”，符合语境。故选D。 22.D点拨：句意为：…当路程短时，我们 可以步行或骑自行车代替开车来节约汽 油。distance意为“距离，路程”，符合语 境。故选D。 23.A点拨：句意为：水是非常重要的自然 资源，因为我们都需要水来维持生命。 stay alive意为“活着”，符合语境。故 选A。 24.C点拨：句意为：我们可以通过确保水 管和水龙头不漏水的方式来节约用水。 by意为“通过…方式”。故选C。 25.C点拨：句意为：我们也能通过做出明 智的选择来节约用水…。generous意 为“大方的”；funny意为“有趣的”；wise 意为“明智的”；surprising意为“令人惊 奇的”。根据下文提到的节水方式可知， 此处是指“明智的”方式。故选C。 五、26.C27.C28.A29.B30.D 课时3 Section B(1a~2e) 基础巩固 -、l.recycle 2.gate 3.president 4.metal 5.inspiration 二、6.B7.B8.A9.D10.B 三、1l.stop to have 12.didn't use to 13.throw away 14.most unusual 15.set up 四、16.B17.A18.D19.E20.C 能力提升 -、1.put 2.inspiration 3.creative 4.known 5.is cleaned