Unit 4 Life on Mars-2025-2026学年九年级下册英语词义辨析及同义替换精讲（译林版）

9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 Unit 4 【Unit4】Life on Mars 词义辨析及同义替换精讲 本单元核心词汇 一、全部单元单词 Mars /ma:z/n.火星 at the speed of/et spi:dDv/短知道的 helmet/'helmit/n.头盔 语以…的速度 circle/'s3kl/vi.盘旋，环行 air tank/e3 tank/n.氧气罐，空uncomfortable/n'kKAmftabl//adj.agreement/a'gri:mant/n.同意， 气罐 使人不舒服的 一致 dried food/draid fu:dn.干制食oxygen/'pksid3n/n.氧气 distance/'drstans/n.距离 品，干粮 in the form of/mǒe fo:m Dv/短possibility/,pDs3'bilati/n.可能 power pack/'paU3pek/n.电源语以…的形式 性 包，电源组 tasy/'tersti/adj.美味的，可口alien/'elin/n.外星人 sleeping bag/'sli:pm baeg/n.睡的 doubt/dat/n.疑惑，疑问 袋 specially/'spefali/adv.专门地，stranger./'stremd3ar)/n.陌生人 gravity/'graviti/n.重力，地心 特意地 carry out/'kaeri aot/短语执行， 引力 f1oat/flat/vi.漂浮 实行 planet/'plaent/n.行星 compare with /kam'pe3wI/短percentage/pa'sentid3/n.百分 crowded/'kraodid/adj.拥挤的，语与…相比 比，百分率 挤满的 compare to /kam'pe3tu:/短语把disadvantage/.drsad'va:ntId3 n. polluted/p3'lu:td/adj.受污染…比作 不利条件，劣势 的 interplanetary /,Inta'plaenitri/risk /risk/n.危险，风险 rapid/'repd山adj.迅速的，快速ad.行星间的 after all/'afta:/短语毕竟，终 的 network/netw3k/n.网络 究 increase/m'kist.增加，增长challenging't∫elmd3四/adj.富goods/godz/n.商品，货物 all over again:l'aUv93'gen/短有挑战性的 electronic,lek'tronik/adj.电子 语再一次，重新 rapidly/rapidli/adv.迅速地，的 passenger'paesind3a(r)/n.乘客，快速地 entertainment/ente'temnmant/n. 旅客 aware /a'wea(r)/adj.意识到的，娱乐，娱乐表演 词义辨析及同义替换 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 1.rapid/'raepid/adj.迅速的，快速的 词义辨析： rapid:侧重形容事物发展或变化的速度快，强调动作的急促性，书面语常用。 quick:含义更广，可指“时间短、反应快”，口语中更常用。 同义替换： quick,fast 例句： The population has a rapid increase in recent years. 真题链接：（译林版九年级同步练习） With thedevelopment of technology,our life is changing a lot A.slow 7B.rapid C.heay(答案：B) 2.increase/m'ki:st.增加，增长 词义辨析： increase:强调数量、程度等“逐渐增加”，可作及物或不及物动词。 raise:作“提高、增加”时，为及物动词，侧重人为地抬高或提升（如价格、音量等）。 同义替换： raise,grow 例句： We need to increase our efforts to protect the environment. 真题链接：（译林版九年级单元测试） The government plans to_the number of public libraries in the city. A.increase B.reduce C.control (答案：A) 3.compare with /kam'peaw/短语与…相比 词义辨析： compare with:侧重“将同类事物进行对比”，突出异同。 compare to:侧重“把甲事物比作乙事物”，强调相似性。 同义替换： contrast with,in comparison with 例句： Compared with Mars,Earth has more suitable living conditions. 真题链接：（译林版九年级同步练习） other planets,Mars is closer to Earth A.Comparing to B.Compared with C.Compare to (答案：B) 4.possibility/,pDs3'bilati//n.可能性 2 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 词义辨析： possibility:指“某事发生的可能性”，为名词，常用搭配here is a possibility of/hat.。 possible:形容词，意为“可能的”，常用搭配It is possible to do/that.。 同义替换： chance,probability 例句： There is a possibility that we will travel to Mars in the future. 真题链接：（译林版九年级中考复习题） Is there any_ofrain tomorrow? A.possibility B.pollution C.agreement (答案：A) 5.doubt/dat/n.疑惑，疑问 词义辨析： doubt:指“对某事不确定或不信任”，作名词时常用搭配have doubt about。 suspect:作动词时意为“怀疑（某事可能是真的）”，语气比doubt更肯定。 同义替换： uncertainty,question 例句： I have no doubt that he will finish the task on time 真题链接：（译林版九年级单元测试） She looked at me withwhen I told her the news. A.doubt B.agreement C.distance (答案：A) 6.risk /risk/n.危险，风险 词义辨析： risk:指“可能发生的危险或损失”，常用搭配take a risk (to do)。 danger:泛指“危险”，侧重可能造成伤害的情况，常用in danger(of。 同义替换： danger,hazard 例句： Astronauts face many risks when they travel to space. 真题链接：（译林版九年级同步练习） It's too dangerous to climb the mountain in the rain.Don't take the_. A.risk B.advantage C.possibility(答案：A) 7.disadvantage/,dsad'va:ntId3/n.不利条件，劣势 词义辨析： disadvantage:指“不利因素或劣势”，反义词是advantage。 shortcoming:侧重“个人或事物的缺点、短处”，语气较委婉。 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 同义替换： drawback,weakness 例句： Living on Mars has many disadvantages,such as low gravity. 真题链接：（译林版九年级单元测试） The main of this plan is that it will cost too much money. A.advantage B.disadvantage C.agreement (答案：B) 8.crowded'kraodId/adj.拥挤的，挤满的 词义辨析： crowded:形容“空间被人或物挤满”，强调密度大，常用搭配be crowded with。 busy:侧重“繁忙的、热闹的”，可指人或场所（如街道、商店）活动频繁。 同义替换： packed,full 例句： The subway is always crowded during rush hour 真题链接：（译林版九年级中考复习题） The shopping mall was so_that I could hardly move. A.empty B.crowded C.quiet(答案：B) 9.polluted /p3'lutd/adj.受污染的 词义辨析： polluted:强调“被污染的”，常修饰空气、水、土壤等，由动词pollute转化而来。 dity:泛指“肮脏的”，可指表面有污垢，不一定是“污染”。 同义替换： contaminated,impure 例句： We should try to reduce the use of plastic to protect polluted oceans. 真题链接：（译林版九年级同步练习） The river was by the factory,and many fish died. A.cleaned B.polluted C.protected(答案：B) l0.aware /a'wea(r)/adj.意识到的，知道的 词义辨析： aware:指“对某事有意识、察觉到”，常用搭配be aware of/that.。 conscious:侧重“清醒的、有知觉的”，也可指“有意识的”，语气比aware更正式。 同义替换： conscious,sensible 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 例句： We should be aware of the importance of protecting our planet. 真题链接：（译林版九年级单元测试） Are you_of the risks of smoking? A.aware B.afraid C.sure(答案：A) ll.entertainment/,ente'temmant/n.娱乐，娱乐表演 词义辨析： entertainment: 指“娱乐活动或表演”，为名词，范围较广（如电影、音乐、游戏等）。 amusement: 侧重“使人开心的消遣活动”，常用搭配amusement park(游乐园)。 同义替换： fun,recreation 例句： Watching movies is one of my favorite forms of entertainment. 真题链接：（译林版九年级同步练习） The city has many_places,such as theaters and parks. A.entertainment B.pollution C.gravity (答案：A) l2.electronic/h,lek'tpnk/adj.电子的 词义辨析： electronic:指“电子的、电子设备的”，修饰由电子元件构成的物品（如电脑、手机）。 electric:侧重“用电的、电动的”，修饰需要电力驱动的设备（如电扇、电灯）。 同义替换： digital,electrical 例句： Nowadays,electronic products are very popular among teenagers. 真题链接：（译林版九年级中考复习题） We usedevices like computers and tablets in our daily life. A.electronic B.electric C.natural (答案：A) 综合演练 综合练习 一、 单项选择 1.With the_development of AI,many jobs are changing quickly A.slow 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 B.rapid C.heavy 2.The factory plans tothe production of electric cars next year. A.increase B.reduce C.control 3.traditional books,e-books are more convenient to carry. A.Comparing to B.Compared with C.Compare to 4.Is there any that we will have a picnic this weekend? A.possibility B.pollution C.agreement 5.She looked at the stranger with-when he asked for her phone number. A.doubt B.agreement C.distance 6.You shouldn'tswimming in the river alone-it's too dangerous. A.take the risk B.take advantage C.take possibility 7.One of the of living in a big city is the high cost of housing. A.advantage B.disadvantage C.agreement 8.The bus was sothat I had to stand all the way to school. A.empty B.crowded C.quiet 9.The lake was by the nearby factory,and now no fish can live in it. A.cleaned B.polluted C.protected 10.We should be_of the importance of saving water in our daily life. 6 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 A.aware B.afraid C.sure 二、根据句意及首字母提示填空 1.The population of the city has arincrease in the past five years. 2.The government hopes to ithe number of green parks in the city center. 3.C_with winter,summer is much hotter in this area 4.There is a pthat we will have a day off next Monday. 5.I have no d that she will win the competition with her hard work. 6.Taking risks without preparation may lead to serious r 三、用所给单词的适当形式填空 1.The(develop)of technology has changed our life greatly.(rapid) 2.We need to_(increase)our knowledge by reading more books. 3.-(compare)with his brother,he ismore interested in science. 4.There is a high(possible)of rain in the afternoon,so take an umbrella 5.She spoke with_(doubt)when I told her the surprising news. 6.It's important to be(awareness)of the risks of online shopping 四、完成句子（每空一词） 1.与去年相比，今年的气温上升得更快。 last year,the temperature has risen faster this year. 2.我们必须意识到保护环境的紧迫性。 We must_the urgency of protecting the environment. 3.城市里的人口增长导致了交通拥挤的问题。 The_population in the city has caused the problem oftraffic. 4.这个计划的主要缺点是它可能会带来高风险。 The main_of this plan is that it may bring high. 1 9年级下册译林版 【Unit4】 词义辨析及同义替换精讲 五、语篇填空 阅读下面短文，在空白处填入一个适当的单词或用括号内单词的正确形式填空，使短文通顺、连 贯。 Living on Mars is a hot topic today.Some people believe there is a(1)(possible)that humans will live there in the future.(2)(compare)with Earth,Mars has lower gravity and no oxygen,which are big (3)_(disadvantage).Astronauts will face many (4)(risk)when traveling to Mars,such as radiation and loneliness. However,with the(5)(rapid)development of technology,scientists are trying to solve these prob- lems.They are working on building(6)(electronic)devices to provide oxygen and protect people from radiation.Although there are still many challenges,more and more people are(7)(aware)of the importance of exploring Mars. 参考答案 I单项选择 1.B2.A3B4.A5.A6.A7.B8B9.B10.A Ⅱ.根据句意及首字母提示填空 1.rapid 2.increase 3.Compared 4.possibility 5.doubt 6.risk I.用所给单词的适当形式填空 1.rapid development 2.increase 3.Compared 4.possibility 5.doubt 6.aware V.完成句子 1.Compared with 2.be aware of 3.increasing;crowded 4.disadvantage;risk V.语篇填空 1.possibility 2.Compared 3.disadvantages 4.risks 5.rapid 6.electronic 7.aware P