UNIT 12 Period Four Lesson 3-【成才之路·学案】2025-2026学年高中英语选择性必修第四册同步新课程学习指导(北师大版)

(4)donate clothes (5)at donation centres 2.(1)subsequent (2)subsequently (3)subsequent to (4)Subsequently (5)in a subsequent report (6)subsequent to (7)subsequent to 3.(1)instantly (2)instantly (3)in an instant (4)an instant success 4.(1)efficiency (2)efficiently (3)efficiently (4)efficiently and economically (5)more efficiently 句式解读 1.(1)-(3)BCB (4)my English teacher (5)a friend of my brothers'(6)people 2.(1)an organised trip (2)The injured workers (3)the fallen leaves (4)The problem discussed (5)nothing changed 突破语法 1-3 CAB 4.something important 5.anything interesting 6.nothing dangerous 随堂知能小练 I.1.scientific 2.donate 3.instant 4.subsequently 5.constant 6.perceive 7.accuracy II.1.scientist 2.donation 3.instantly 4.constantly 5.accurate IlI.1.not to mention 2.figure out 3.be nothing like 4.Only a few 5.come up with 6.single out Period Three Lesson 2 课前自主预习 I.1.C2.D3.A4.E5.B II.1.clueless 2.evaluation 3.emerge 4.coincidence III.1.The meaning of life lies in 2.I'm afraid that 3.involve ourselves in/be involved in 4.while I like 课堂新知讲练 词汇拓讲 1.(1)emerging (2)emergence (3)emerged (4)emerge from (5)an emerging industry 2.(1)evaluation (2)evaluating (3)need to evaluate (4)their evaluation of (5)to objectively evaluate 句式解读 1.(1)envying (2)being persuaded (3)can't help crying (4)cannot help being moved (5)couldn't help them seeing (6)can't help thinking about (7)couldn't help overhearing 2.(1)before they come back (2)before he saw me (3)before the letter arrived (4)before they were divorced (5)After you think it over (6)After we had finished the work (7)after you take the pills 随堂知能小练 I.1.emerging 2.clueless 3.evaluation 4.incidence 5.incubation II.1.emergence 2.cluelessness 3.evaluate 4.incubate IlI.1.flow into 2.All of a sudden 3.at the stage of 4.a flash of insight 5.All at once 6.often the case Period Four Lesson 3 课前自主预习 I.1.E2.A3.B4.C5.D II.1.theoretical 2.overcome 3.decline IlI.1.safe and sound 2.In spite of the bad weather 3.are not allowed to watch 4.With the help of 课文语篇研读 I.1-5 ADBCB Ⅱ.1-5 FTFTF 课堂新知讲练 词汇拓讲 1.(1)overcome difficulties (2)overcome poverty (3)were overjoyed to 2.(1)decline and fall (2)on the decline (3)has been in decline (4)is on the decline (5)decline to (6)a general decline in 3.(1)in spite of (2)in spite of (3)Despite 句式解读 1.(1)not only English but also Russian (2)not only;but also (3)a successful writer;the greatest poet (4)what we do;what we do not do (5)Not only do the professors have their own ideas 2.(1)I have been to the city twice that/which) you just visited. (2)I hope the advice that/which)I put forward will be of some help. (3)Generation gap is a problem (that/which) people are interested in. (4)Who is the man that/who/whom)you were talking to? (5)This is the car key that/which)you've been looking for. 语言时空 1.in front of 2.next to him 3.with reference to 4.In spite of 5.on behalf of 6.without oxygen -23 7.in the distance 随堂知能小练 I.1.theoretical 2.overcome 3.grand 4.declined 5.gravity II.1.theoretically 2.overcoming 3.grander 4.to comment IlI.1.not just 2.at the age of 3.must be separated from 4.as a result 5.in spite of 6.should be allowed to 7.has led to Period Five Writing Workshop 课前自主预习 I.1.A2.C3.D4.B5.E II.1.boiling 2.improvement 3.revolution IlI.1.reflect on 2.a large amount of 3.at lower costs 4.came about 5.a great improvement 课堂新知讲练 词汇拓讲 1.(1)improvement (2)improved (3)improving (4)further improvement 2.(1 )availability (2)available (3)availably (4)to avail (5)to no avail (6)were of no avail 句式解读 (1)-(3)DBC (4)By the door stood an armed guard. (5)Among these people was his friend Jim. (6)At the next table was a pretty girl (7)By the window sat a young man 随堂知能小练 I.1.steam 2.kettle 3.boil 4.improvement 5.availability II.1.steamer 2.kettles 3.boiler 4.improvements 5.available134 staffers is a clue about the ingredients for success. 3.The market situation is difficult to （evaluation). 4.They lay eggs that incubation) through the winter. Ⅲ.完成句子 1.All rivers the sea. 百川归海。 0y she didn't look sleepy any more. 突然她看上去不再瞌睡了。 3.Teenagers are still learning to tell right from wrong,so they might make mistakes sometimes. Period Four 课前自 ①猜词意 A.重力；引力 B.降低；减少 C.宏伟的；壮丽的；隆重的 D.克服（困难）；控制（感情）；征服；战胜 E.理论的 1.This is certainly a theoretical risk but in practice there is seldom a problem. 2.Gravity is the force that causes things to drop to the ground 3.The number of staff in the company has declined fom217,000to114,000. 4.My Mum and Daddy used to have a grand Christmas party every year. 5.If you overcome a problem or a feeling,you successfully deal with it and control it. 青少年仍处于学习辨是非的阶段，所以有时 候他们会犯错。 4.With realised what the dream meant. 我突然明白了这个梦意味着什么。 there was someone knocking on the door. 突然有人敲门。 6.As is with elderly people,Grandpa talked about my new hairstyle for at least 50 minutes. 就像老年人经常做的那样，爷爷至少花了50 分钟谈论我的新发型。 夯基提能作业 请同学们认真完成练案[15】 Lesson 3 玉预习 ①猜单词拼写 1.theory n.理论；学说→ ad山.理论的 （参考：practice-→practical) 2.over+come→ vt.克服；控制；征 服；战胜 (参考：over+sleep→oversleep) v.降低；减少→rise/increase v.（反 义词)提高 ①完成句子 1.To our relief,the children returned home at last. 令我们感到宽慰的是，孩子们最终安然无恙 地回到了家里。 the sports meeting will be held on time. 尽管天气不好，运动会将按时举行。 135 3.The children violent TV4. our teachers,we programmes. have finished all the tasks. 孩子们不被准许观看暴力电视节目。 在老师们的帮助下，我们完成了所有的任务。 课文语篇研读 ①阅读理解 to do research only rather than teach 1.How old was Hawking when he died? B.Hawking was born with ALS in 1942. A.76 years old. B.78 years old. C.Hawking believed the birth of the universe C.83 years old. D.86 years old created many small black holes. 2.When did physicians discover that Hawking had D.Hawking thinks we should look for a different a rare,slow-progressing form of ALS? way to discover the deepest secrets of the A.In1942. B.In1959. universe. C.In1961. D.In1963, ①判断正误 3.What was the result of his operation in 1985? 1.Hawking was only famous for his brilliant work A.He lost his sight. in theoretical physics and cosmology.( B.He lost his speech. 2.Hawking once worked at the Institute of C.He lost his hearing. Astronomy in Cambridge. () D.He lost the use of his hands 3.Hawking began to research physics since the 4.What happened to Hawking in 2010? January of 1942. () A.He was expected to live for a few years. 4.Although Hawking's physical abilities declined B.He found his first job in a university. over decades,he never stopped his studies and C.He published The Grand Design with Leonard he developed a number of new ideas about black Mlodinow. holes. () D.He decided to write A Brief History of Time. 5.A Briefer History of Time (2005)was sold one 5.Which of the following is NOT true? copy for every 750 people on Earth.( A.Because of the illness,Hawking was allowed 课堂新知讲练 ●词汇拓讲 cosmology,but also for overcoming the challenges of ALS (a disease that affects muscle 1.overcome vt.克服（困难），控制（感情）；征 control). 服，战胜 【翻译】霍金举世闻名，不仅是因为他在理论物 (P58)Hawking was famous,not just for his 理学和宇宙学方面的杰出成就，还因为他克服了 brilliant work in theoretical physics and ALS(一种影响肌肉控制的疾病)的挑战。 136 》语言提升 (1)overcome t.解决；克服；战胜；击败；压 倒；使受不了（过去式：overcame;过去 分词：overcome) overcome还有“困扰”“熏倒”等意思。 overcome difficulty克服困难 overcome poverty脱贫；战胜贫困 (2)over-通常用作前缀，来合成一些单词， 主要是体现在三个方面： ①表示“过度，过分” overwork n.过度劳累 overcrowded ad.挤满的 overjoyed ad山.非常高兴；欣喜若狂 overall ad山.全部的全体的；一切在内 的；综合的ad.全面地；总地；总的 说来 ②表示“在…之上” overlook u.远眺；忽视，忽略；瞭望；检查 overwhelm u.压倒；泛滥 overcoat n.外套 ③表示“翻转” overturn v.颠覆 。 overthrow..推翻 。 The night before the test I was overcome by fear and despair 考试的前一晚我被恐惧与绝望困扰着。 The residents were trying to escape from the fire but were overcome by smoke. 居民们正设法逃出大火，却被烟熏倒了。 】针对练习 完成句子 (1)Success grows out of struggle to 成功是在克服困难的奋斗中成长起来的。 (2)We're creating a movement to 我们正在行动起来，以战胜贫困。 (3)We hear that our team had won the championship. 听说我们队得了冠军，大家喜出望外。 2.decline vi..减少，降低 P59)Although Hawking's physical abilities declined over decades,he never ceased his studies and he developed a number of new ideas about black holes. 【翻译】几十年间尽管身体状况不断下降，霍 金从未停止自己的研究，他发展了一些有关 黑洞的新思想。 》语言提升 decline.变小；变少；减少；降低；谢绝；婉 言拒绝；下沉；使（名词；代词；形容词）变化 词形 日渐衰弱；持续减少；不断下降；下跌；贬 值；夕阳渐沉 on the decline在走下坡路；在衰退中 in decline在衰退中 :economic decline经济衰退 The number of staff has declined from 217,000 to114,000 员工人数已从217,000人减少到114,000人。 He declined their invitation. 他谢绝了他们的邀请。 He offered the boys some coffee.They declined politely. 他要给男孩们来些咖啡。他们礼貌地拒 绝了。 Official figures show a sharp decline in the number of foreign tourists. 官方数字显示外国游客数量骤降。 》多混辨析 idiminish,decline,decrease,reduce 这组词都有“减少，减轻”的意思，其区 别是： diminish v.指因为不断消耗，在数量方面缓 慢减少，也指素质或者价值的下降。 decline v.(数目、价格、比率)下降；谢绝，婉 言推辞；衰退，衰落。 decrease u.指数量上的减少；力量或者强度 的减弱。 reduce v.指人为地使某物在数量或重量方 面的减少或降低g The supply of oil has diminished because of the war. 由于战争石油的供应减少了。 Last year,the crime rate in Chicago has sharply declined. 去年芝加哥的犯罪率明显下降。 He declined our invitation to dinner. 他婉拒了我们请他吃饭的邀请。 The population decreased a lot last year. 去年人口数量急剧下降 He reduced the amount of money they could spend, 他缩减了他们的开销。 》针对练习 完成句子 (1)Though cities grew in size and number for long periods,they could in a certain period,too. 虽然长期来看，城市规模的大小和数量不 断扩大，但一定时期也会遭受缩减下降。 (2)These numbers have been for decades. 近几十年来，这些数字都在减少。 137 (3)Industry in Britain since the 1970s 英国工业自20世纪70年代以来一直在 走下坡路。 (4 )Thankfully the smoking of cigarettes 值得庆幸的是，吸烟正在减少。 (5)Even chimp mothers regularly share food with their children. 甚至黑猩猩的母亲经常拒绝与其孩子分 享食物。 (6)The figures represent employment. 这些数字表明就业率的总体下降。 3.in spite of虽然，不顾；尽管…（仍…） (P59)In spite of his disease,Hawking didn't consider himself an unlucky man. 【翻译】尽管霍金患有疾病，但他并不认为自 己是个不幸的人。 )语言提升 in spite of尽管，不质，无论 despite为书面用词，指不受某事或某种原 因的阻碍，语气轻于in spite of。 notwithstanding prep..虽然，尽管语气最 弱，仅表示一种障碍的存在。. They persevered in spite of all kinds of difficulties. 尽管有各种困难，他们还是坚持了下去。 Despite his advanced years,he is learning to drive. 虽然年事已高，他现在在学驾驶汽车。 He despised William Pitt,notwithstanding the similar views they both held. 他瞧不起威廉·皮特，尽管他们俩所持有的 观点相似。 138 His relations with colleagues,differences of opinion notwithstanding,were unfailingly friendly 他与同事们尽管有意见分歧，但关系一直很 融洽。 )针对练习 完成句子 (1)He went fishing rain. 尽管下着雨，他还是去钓鱼了。 (2)I went shopping the rain. 尽管下雨，我还是出去买东西了。 (3) his cries,no one came to his assistance. 尽管他哭喊，却没有人来帮助他。 ●句式解读 1.(P58)Hawking was famous,not just for his brilliant work in theoretical physics and cosmology,but also for overcoming the challenges of ALS a disease that affects muscle control) 【翻译】霍金举世闻名，不仅是因为他在理论物 理学和宇宙学方面的杰出成就，还因为他克服了 ALS(一种影响肌肉控制的疾病)的挑战。 》句式剖析 not just...but also..与not only..but also..同 义，意为“不仅…而且…”，后面接的是相 同的介词短语，分别为“for his brilliant work in theoretical physics and cosmology”和“for overcoming the challenges of ALS" 》句式提升 not only.but also.…是英语中比较常见的一个 关联词组，用于连接两个表示并列关系的成 分，着重强调后者。它的意思是“不仅…而 且…”；其中的also有时可以省略。 (1)主要用法 ①连接主语 Not only I but also Tom and Mary are fond of watching television. 不仅我，而且汤姆和玛丽也都喜欢看电视。 ②连接谓语动词 The Americans and the British not only speak the same language but also share a large number of social customs 英国人和美国人不但说的语言相同，而且有 很多相同的社会风俗。 ③连接宾语 The problem for the recipient was trying to guess not only who the sender was,but also what his secret feelings might be. 收信人不仅要尽力猜出是谁寄的，还要推测 寄信人内心有什么想法。 ④连接宾语补足语 Light and bright colours make people not only happier but more active. 浅色和鲜艳的颜色不但使人看了高兴，也会 使人更加活泼。 ⑤连接表语 Shakespeare was not only a writer but (also)an actor. 莎士比亚不仅是一位剧作家，而且是一位 演员。 ⑥连接状语 If your friend reminds you kindly of your faults, take what he says not merely pleasantly but thankfully. 如果你的朋友善意地指出你的缺点，你不但 要欣然接受，而且要心怀感激之情。 ⑦连接从句 He didn't let us off the hook until we had proved not only that we knew what an organism was but also that we had the fortitude to stand up for the truth. 直到我们证明了我们不仅知道什么是生物 体，而且具有坚持真理的不屈不挠精神时，他 这才放过我们。 ⑧连接定语 Man has become master not only of the sky but also of the space. 人类不但征服了天空，而且征服了太空。 ⑨连接句子 I not only heard it,but also)I saw it. 我不仅听到、而且看到了它。 0用于itis..that.强调结构 It is not only the scientist and the physician who need a long special training now,but the computer expert,the accountant,and the business manager. 现在，不仅科学家和医生需要长期的专门训 练，计算机专家、会计师和企业经理也需要这 种训练。 (2)倒装用法 not only..but(also)..连接句子时，not only可 以置于句首表示强调，这时其引导的分句要 采用倒装结构。 Not only has he a first-class brain but also he is a tremendously hard worker. 他不仅有着头等聪明的脑子，而且工作很能 吃苦。 Not only had the poor man been arrested but he had been sent to prison as well. 这个可怜的人不仅被逮捕，而且被送进监狱。 (3)not only..but..的省略及其变体 not only..but also..中的also可以省略。有人 认为该结构所连接的第二部分是最高级形容 词或它所表示的范围、程度、影响等超过第一 部分时，常将also省略。 139 He is famous not only in China but (also)in the whole world. 他不仅闻名中国，而且闻名全球。 Not only do they suffer less pain than most women in labour,but the town boasts an unusually low rate of infant mortality. 这不仅使她们比大多数产妇少受痛苦，而且 使城市婴儿死亡率大大降低。 》针对练习 完成句子 (1)I know 我不仅懂英语，而且懂俄语。 (2)A gas changes in shape_ in volume. 气体不仅改变形状，而且改变体积。 (3)He was not only but also of his time. 他不仅是一位成功的作家，而且是他那个 时代最伟大的诗人。 (4)It is not only but also for which we are accountable 我们不但要对我们所做的事负责，而且要 对我们没有去做的事负责。 (5) on the matter,but the students have theirs too. 对这件事，不仅教授们有自己的看法，学 生们也有自己的想法。 2.(P59 )And he believed this was because of the help he received from his family and a large number of people and organisations. 【翻译】而且他相信，这是因为他收到来自他 的家人、很多人及组织机构的援助。 》句式剖析 "the help he received from his family and a large 140 number of people and organisations”是省略关 系词that/which的定语从句。 》句式提升 定语从句由关系词引导。关系词又分为关系 代词和关系副词。关系词有时可以省略，但 这只限于限制性定语从句中，在非限制性定 语从句中，关系词则不可省略。归纳起来，关 系词（关系代词和关系副词）的省略有以下 情形： (1)关系代词作宾语时的省略：当关系代词 who,whom,which和that在定语从句中用作 动词宾语或介词位于句末时的介词宾语时， 可以省略。 Is there anything (that)you wanted? 你想要什么东西吗？ (2)关系代词作表语时的省略：当关系代词 hat在定语从句中用作表语时，可以省略。 China is not the country (that)it was. 中国已不是过去的中国了。(that作表语) (3)关系副词when的省略：用作时间状语的 关系副词when通常不能省略，但有一种特殊 情况，即用于day,year,time等少数几个词后 时可以省略（也可换成that)。 That was the year (that)I first went abroad. 就是那一年我第一次出国了。 I'll never forget the day (that)we met. 我永远也忘不了我们见面的那一天。 (4)关系副词where的省略：用作地点状语的 关系副词where通常不能省略，但有一种特殊 情况，即用于place,somewhere,anywhere, 语言 ●观察领悟 )例句观察 1.Mary came back because of the rain. 2.It is the best way of doing it. 3.This is against the law. everywhere,nowhere少数几个词后时可以省 略（也可换成that)。如： This is the place (where)they met yesterday. 这就是他们昨天碰头的地方。 Have you somewhere (that)I can lie down for an hour? 你有没有一个什么地方可以让我躺一个 小时？ (5)关系副词why的省略：关系副词why通常 只用于the reason后引导定语从句，且通常可 换成that或for which,均可省略。 That's the reason why/for which/that he came. 这就是他来的原因。 Give me one reason why)we should help you. 给我举出一个我们应当帮助你的理由。 )针对练习 请用含有省略关系词的定语从句翻译下列 句子 (1)你刚刚参观完的那座城市，我去过两次。 （2)我希望我提的建议有些帮助。 (3)代沟是人们感兴趣的问题。 (4)刚才和你讲话的人是谁？ (5)这就是你一直在找的汽车钥匙。 时空一 4.I found everything in good condition. 】我的领悟 在以上的句子中，黑体部分都在句子中充 当某种句子成分。在句1中，because of the rain 在句中作 ;在句2中，of doing it在 句中作 ;在句3中，against the law在句 中作 ;在句4中，in good condition在句 中作 Keys:状语；定语；表语；宾语补足语 ●介词短语 一、介词短语的构成 介词在句中不能单独存在，而是必须以介 词短语的形式存在。介词短语的构成如下（其 中“介词+名词”短语结构最常见)： 1.介词+名词 Unfortunately,there wasn't enough demand for our product. 不幸的是，我们的产品市场需求不大。 There is a real need for discipline in this class. 这个班级，没纪律不行。 2.介词+代词 He always carried the photo with him. 他总是随身带着那张相片。 He is not interested in that at all. 他根本对那个不感兴趣。 3.介词+动名词 He entered the room without taking off his shoes. 他没有脱掉鞋就进了房间。 He objected to being treated like a child. 他反对被当作小孩看待。 4.介词+数词 She is a mother of two. 她是一位有两个孩子的母亲。 It is half past six. 现在是6点半。 5.介词+形容词或副词 Your plan is far from perfect. 你的计划远没有那么完美。 I heard someone calling me from below. 我听见有人在下面叫我。 141 6.介词+另一个介词+名词 I saw her from across the street. 我从街对面看到她。 We never play bridge until after dinner. 我们只在晚饭后打桥牌。 7.介词+名词性从句 We should learn from what you have done wrongly 我们应从你们的错误中学习。 The exercises are well done except that some words are misspelled. 除了一些单词拼写错误之外，这些练习做得 不错。 The car stopped only a few inches from where I stood. 汽车在离我站的地方仅几英寸处停下来了。 He gave a lesson on how to improve soil. 他给大家上了一堂如何改良土壤的课。 8.介词+复合结构 I had no objection to Jenny marrying him. 我不反对詹妮和他结婚。 He sat in his room with no light on. 他坐在他的房间里，没有开灯。 He fell asleep with the lamp burning. 他亮着灯睡着了。 9.介词+动词不定式 I had no alternative but to walk out. 我别无他法只好走出去。 She can do everything except cook. 她什么都会，就是不会做饭。 二、介词短语在句中的作用 1.作状语 His parents work on a farm. 他父母在农场工作。 He arrived in Washington at five o'clock in the morning. 他早晨五点到达华盛顿。 142 2.作定语 The book on the desk is very interesting. 书桌上的那本书很有趣。 3.作表语 This book will be of great use to you 这本书对你会有很大的用处。 4.作宾语补足语 I found him in trouble. 我发现他身陷困境。 ●追踪练习 完成句子 1.Put your hand your right lens and just look through your left lens. 把你的手放在右边的镜片前，只看你左边的 镜片。 2.He stole a sidelong glance at the young woman sitting on the train. 随堂知 I.单词拼写 1.This is certainly a (理论的)isk but in practice there is seldom a problem. 2.This week Sabrina uses witchcraft(巫术)to (克服)her fear of giving a speech.. 3.This （宏伟的)building in the centre of town used to be the hub of the capital's social life. 4.Steel production of this factory has (降 by 25%as compared with last year. 5.Nothing is pulling on you,only (重 力) Ⅱ.单句语法填空 1.It is (theoretical)possible for him to overrule their decision,but highly unlikely. 在火车上他偷偷地瞄了一眼坐在他旁边的年 轻女士。 3.I am writing your job application. 关于您申请工作一事，现特函回复。 her worries,she passed the exam with flying colours. 尽管她有些担忧，但还是以优异的成绩通过 了考试。 5.I speak many thousands of women. 我代表成千上万的女性发言。 6.The climbers made their ascent of the mountain 登山者在没有氧气的情况下登山。 7.I was just able to make out a dark figure 我只能看到远处有个黑影。 能小练 2.Juliet can find a way of overcome the difficulty. 3.He is grand)and even richer than the Prince of Wales. 4.Their spokesman declined comment)on the allegations. Ⅲ.完成句子 1.This is another disaster movie-it's a masterpiece. 不能说它只是又一部灾难片—一它是一部 杰作。 2.Her earliest memory is of singing four to wounded soldiers. 她最早的记忆是在4岁时为受伤的士兵唱歌。 143 3.Raw meat 然还有心情嬉笑、逗乐。 cooked meat 6.They 生肉和熟肉必须分开。 wait for cheaper technologies to be 4.He made one big mistake,and, developed. lost his job 应该让他们等待更便宜的技术被开发出来。 他犯了个大错，结果丢了工作。 7.The drought 5.Neil's colleagues said he was actually in a widespread loss of life. joking,upbeat mood 旱灾导致了许多人的死亡。 the bad news. 夯基提能作业 尼尔的同事说，尽管有这样的坏消息，他居 请同学们认真完成练案[16] Period Five Writing Workshop 课前自玉预习 ①猜词意 (参考：satisfy-→satisfying) A.可能性 2.improve u.提高；改善→ n.改善； 改进；改进之处 B.彻底变革，革命 C.（使)沸腾，煮沸；（用开水）煮；沸腾 (参考：argue-→argument) 3.revolute.→ n.彻底变革；革命 D.改善，改进；改进之处 E.水蒸气；蒸汽动力 (参考：suggest-→suggestion) ⑩预备写作素材 1.This is often due to the availability of better job 1.The start of a new year is a good time to opportunities and education. the many achievements of the past. 2.I stood in the kitchen,waiting for the water to 新年伊始正是回顾过去许多成绩的好时候。 boil. 2.We should minimize the use of private cars, 3.It's only a small improvement,but at least it's a which emit step in the right direction. greenhouse gases. 4.A revolution is a successful attempt by a large 我们应该减少私家车的使用，因为私家车排 group of people to change the political system of 放大量的温室气体 their country by force. 3.They have a common query-does this get us 5.Look!Steam rose from the boiling kettle. more food grain 大家都有一个普遍的疑问：这真能让人们能 ①猜单词拼写 以较低的价格得到更多的食物么？ 1.boil w.沸腾；煮沸→ ad山.沸腾的 4.The peace agreement through