UNIT 1 Section Ⅳ Using Language & Assessing Your Progress-【金版新学案】2024-2025学年高中英语选择性必修第四册同步课堂高效讲义配套课件（人教版2019）

UNIT 1 SCIENCE FICTION 主题语境：人与社会——科技发展与创新精神 Section Ⅳ Using Language & Assessing Your Progress—Language points 内容索引 课时测评 4 语基自查　固根基 1 语基讲练　提能力 2 随堂应用　多维练 3 语基自查　固根基 返回 核心单词——练通 1．manual ______ 　 体力劳动 2．take a step _________ 向后退一步 3．_____ a doctor 去请医生 4．switch on the _____ 打开台灯 5．keep up with the _____ of change 跟上改变的步伐 labour backwards fetch lamp pace 拓展单词——用活 1．________ n．分开；分隔；差异；除(法) →divide v．(使)分开，分散，分割，分成；分配 2．______ n．强烈的欲望；冲动 vt.催促；力劝；大力推荐 →urgent adj.迫切的，紧急的 3．_________ adj.最大极限的 n．最大量；最大限度 →minimum adj.最低的；最小的 n．最小值 4．________ vi.& vt.爆炸；爆破 →explosion n．爆炸 division urge maximum explode 5．_____ n．泥；泥浆 →muddy adj.泥泞的 6．____________ n．夸大；夸张 → overstate vt.夸大；言过其实 7．________ adj.更好的；占优势的；(在级别或重要性上)更高的 →superiority n．优越感；优势；优越(性) 8．________ adj.随机的；不可思议的 →randomly adv.随机；随意；未加计划地 mud overstatement superior random 1．规律：部分以-d/-de结尾的动词变名词时后缀为-sion。 示例：conclude v．得出结论→conclusion n．结论　divide v．(使)分开，分散，分割，分成；分配→division n．分开；分隔；差异；除(法) 2．规律：-ment是名词后缀，多置于动词后 示例：overstate vt.夸大；言过其实→overstatement n．夸大；夸张　govern v．治理→government n．政府；管理 规律方法 阅读单词——识记 1．jolt the house　　　　 使房子受到_____ 2．blurred image ___________图像 3．the risks of inaction _______的风险 4．leather goods _____制品 5．an instrument panel 仪表____ 6．grip her arm ______她的胳膊 7．hazy moonlight _______月光 8．handkerchief paper _____纸 9．a puff of wind _____清风 10．maximum capacity _____容量 震动 模糊不清的 无行动 皮革 盘 抓紧 朦胧的 手帕 一丝 最大 重点短语——再现 第一组　汉译英 1．____________　　 事物的利与弊；支持与反对 2．__________ 比……更好；更胜一筹 3．_________ 占上风；取而代之；接管；接手 4．____________ 与……冲突或抵触 5．________ 关掉；熄灭；在场；使朝外；结果是 6．________ (逐渐)减少；消失 7．______ 上升；升起 8．______________ 有强烈的欲望做某事 pros and cons superior to take over conflict with turn out fall away rise up have an urge to 第二组　英译汉 9．with a sudden jolt　　　　 _______________ 10．be flipped on its side _____________ 11．be stunned for a moment ____________ 12．give it a last check _______________ 13．move like a rocket ___________________ 14．disappear like in a dream _________________ 15．travel at maximum speed __________________ 一阵突然的晃动 被翻转到旁边 昏迷了片刻 最后检查了一下 移动得像火箭一样快 像在梦里一样消失 以最快的速度穿梭 返回 典型句式——默背 根据课文语境及汉语提示补全句子 1．句型公式　修辞之明喻表达 教材原句　__________ (感觉好像)I was being driven fast on a winding road. 2．句型公式　so long as引导从句，意为“只要……” 教材原句　_________________________________(只要我以最高速度行进)，it didn't matter. It felt like So long as I travelled at maximum speed 语基训练　提能力 返回 Ⅰ. 核心词汇练全 1 superior adj.更好的；占优势的；(在级别或重要性上)更高的 n．上级；上司 (教材原句)In sci-fi stories，robots often become superior and take over.在科幻小说中，机器人通常会变得更强大，并占据主导地位。 (1)be superior to　　 比……更好；更胜一筹；比……级别高(to为介词) be superior in 在……方面更好/更强 (2)be inferior to 比……差；比……级别低 be senior to 比……级别高；比……年纪大 be junior to 比……级别低；比……年纪小 be prior to 比……更早；在……前面 名师点津　superior 这一类的形容词本身已含有比较的意味，因此此类形容词没有比较级，也不与than连用。 练透——单句语法填空 (1)Of the two dresses，I think this one is superior that one. (2)This engine is superior many respects to that. 写美——人物特点描写 (3)尽管他比我小两岁，但他在职位上比我级别高。 Although he is two years younger than me， in the position. to in he is superior to me 2 take over 占上风；取而代之；接管；接手 (教材原句)In sci-fi stories，robots often become superior and take over.在科幻小说中，机器人通常会变得更强大，并占据主导地位。 含有take的其他常用短语： take away　　　 带走；拿走 take back 退回；收回 take down 写下；记下 take off 起飞；脱下；突然开始走红/成功 take in 吸收；收留；理解；欺骗 take out 带……出去；提(款) take on 呈现；雇用；承担；接受 take up 占据(时间、空间)；开始从事；接受(提议或挑战等) 写美——完成句子 (1)我认定她是接管这项工作的理想人选。 I decided that she was the ideal person ． (2)我希望你能理解我正在说的话。 I hope you're ． (3)他将在下个月底就任民事法庭庭长一职。 He will the civil court at the end of next month. (4)面对新挑战时，失败的恐惧往往会占据我的思绪。 The fear of failure tends to when I'm faced with new challenges. to take over the job taking in what I'm saying take up his post as the head of take over my thoughts 3 conflict with 与……冲突或抵触 (教材原句)A robot must obey the orders given it by human beings except where such orders would conflict with the first law.机器人必须服从人类的命令，除非这些命令与第一定律相冲突。 (1)conflict vi.　　　　　　 矛盾；冲突；抵触 n. (意见等的)抵触，冲突，矛盾；武装冲 突；战斗 (2)in conflict with 和……有矛盾/冲突 come into conflict with 与……产生矛盾/发生冲突 conflict of interest(s) 利益冲突 练透——单句语法填空 (1)She found herself conflict with her parents over her future career. (2)Reports (conflict) on how much of the aid reached the famine victims. 写美——完成句子 (3)年轻人的想法与父母保守的观念产生冲突，使房间内充满了紧张气氛。 the conservative thinking of the parents，creating tension in the room. in conflicted The young man's idea conflicted with 4 turn out 关掉；熄灭；在场；使朝外；结果是 (教材原句)Night came as if a lamp was being turned out，and in another moment came the day.黑夜来临了，仿佛一盏灯被熄灭了，转瞬之间，白天来临了。 (1)turn out(to be)...　　 最后结果是……；最终成为…… it turns/turned out that... 结果是……；证明是…… (2)turn构成的常用词组： turn in 上交；交还 turn to 翻到；求助于；(使)变成 turn on 打开 turn off 关闭 turn down 调低；拒绝 turn up 调高；出现 turn over 翻页；(使)翻转；移交 turn away 拒绝；不准……进入 turn against (使)反对；(使)与……反目 练透——单句语法填空 (1)Things turned to be exactly as the professor had foreseen. (2)How could you turn such a fantastic job when you have been out of work for months? (3) turned out that people liked and forwarded it madly on the Internet，only to make me an Internet celebrity. 写美——读后续写之场景描写 (4)那个衣着考究的男人原来是一名专攻神经外科的外科医生。米歇尔紧紧地抓着那个男人的胳膊，催促他帮助救她的弟弟杰克。 That well-dressed man ，specializing in neural surgery. Holding the man's arm tightly，Michelle urged him to help save her brother Jack. out down It turned out to be a surgeon 5 urge n．强烈的欲望；冲动 vt.催促；力劝；大力推荐 (教材原句)I had a strong urge to look at the random things that were being flashed before my eyes! 我有一种强烈的冲动去看看那些随机在我眼前闪过的东西！ (1)urge sb to do sth　　　 力劝某人做某事 urge that...竭力主张……(从句谓语用“should＋动词原形”，should 可省略) it is urged that... 坚决主张…… (从句谓语用“should＋动词原形”，should 可省略) (2)urgent adj. 紧急的；急迫的 in urgent need of... 急需…… (3)urgency n． 紧急；急迫 a matter of great urgency 极为迫切的问题 练透——单句语法填空 (1)He said that he had urge to open a department store of his own. (2)They urged that the library (keep) open during the vacation. (3)They were interrupted by a sudden and (urge) knock at the door. 写美——话题写作之跨文化交流 (4)随着中国的发展，极力主张年轻人无障碍地与外国人交流。因此，任何渴望说流利英语的人都可以报名参加我们的口语俱乐部。 With the development of China ， ______________ the young (should) communicate with foreigners without difficulty. So ， anyone who __________ __________________________ can sign up for our Spoken English Club. an be kept urgent it is urged that has/feels an urge to speak fluent English 认知深化 一、一词多义——labour A．n.体力劳动 B．n.分娩　C．vi.奋斗　D．vi.努力工作 1．Workers are paid for their labour. ___ 2．He laboured to finish the job on time. ___ 3．You don't have to call the midwife as soon as labour starts. ___ 二、熟词生义——阅读句子并在横线上写下加黑词的词性和词义。 1．A hedge forms the division between their land and ours. ________ 2．He gave up his job in advertising because he couldn't stand the pace. ____________________________ A D n.分界线 n.迅速出现(或变化等)；快节奏 B Ⅱ. 典型句式讲透 1句型公式：修辞之明喻在读后续写中的运用 (教材原句)It felt like I was being driven fast on a winding road.这感觉就像我在一条蜿蜒的路上疾驰。 在读后续写中可以适当采用明喻这一修辞手法，增加故事情节的生动性。明喻主要采用like，feel like等词，表示“好像，就像，像……”等。 写美——完成句子 (1)当他听我们谈论丰富多彩的生活时，他的笑容灿烂得如宝石一样闪闪发光。(读后续写之人物神态描写) When he heard us talking about the colorful life，_______________________ ______________ ． (2)它在温柔低语，就像一个小女孩对她的母亲私语一样。(读后续写之景物描写) It murmured in a soft voice _______________________________________． the smile on his face shone like a diamond like a little girl was whispering to her mother 2 句型公式：so long as引导从句，意为“只要……” (教材原句)So long as I travelled at maximum speed，it didn't matter.只要我以最快速度行驶，就没关系。 (1)so long as 与 as long as 均可表示“只要”，相当于 provided that/on condition that，用于引导条件状语从句。 (2)两者用于本义表示“与……一样长”时， as long as 可用于肯定句或否定句，而 so long as 只能用于否定句，不能用于肯定句。 写美——完成句子 (1)你可以出去，只要你答应在11点以前回来。 You can go out， before 11 o'clock. (2)只要太阳还在照耀，我就会保持微笑，享受每一刻。 (读后续写之心理描写) ，I'll keep smiling and enjoying each moment of the day. (3)只要你在我身边，我觉得我可以战胜生活中的一切挑战。(读后续写之心理描写) ，I feel like I can defeat anything life throws at me. as/so long as you promise to be back As/So long as the sun shines 返回 As/So long as you're by my side 随堂应用　多维练 返回 维度一　品句填词 1．The company hired extra ______(劳动者) to meet the deadline. 2．He walked __________(向后) to avoid stepping on the wet paint. 3．We need to work at our ___________(最大极限的) capacity to finish the project on time. 4．She always carries a ___________ (手帕)in her pocket in case she needs it. 5．The ______(灯) on the desk provided a soft glow in the room. labour backwards maximum handkerchief　 lamp 维度二　词形转换 1．The ________(divide) of labour is essential for efficiency. 2．She ________(random) picked a book from the shelf. 3．The dog was running happily around，________(fetch) sticks in the park. 4．We need to address this _______(urge) matter immediately. 5．He was ________ (stun) by the news of her promotion. division randomly fetching urgent stunned 返回 维度三　固定搭配和句式 1．只要你在截止日期之前完成工作，你就可以休息一整天。(so long as) _________________________________________，you can take the rest of the day off. 2．这个活动最终证明是非常成功的，有很多人参加。(turn out) ______________________________________________________________________________ with a lot of people taking part. 3．据估算，该市轻工业总产值是去年的三倍以上。(calculate) ___________________ the total output value of the city's light industry has grown over three times as much as that of last year. So long as you finish your work by the deadline The event turned out to be a great success/It turned out that the event was a great success It is calculated that 课时测评 返回 语境基础练 进阶训练一　根据汉语意思或首字母提示填入单词的适当形式(每小题1分，共8分) 1．When the boiler _________ (爆炸)，many people were injured. 2．The job will require you to use all your skills to the _________(最大限度). 3．As she stepped __________ (向后)，she slid and fell onto the board. 4．It's an ____________ (夸大) to say that the boy is a mathematical genius. 5．It is difficult to keep up with the rapid _____ (步伐) of change. exploded maximum backwards overstatement pace 6．In that emergency，the frightened wife ________ (抓紧) her husband's arm. 7．The inhabitants have to walk a mile to f_____ water. 8．It is universally acknowledged that girls are s________ to boys in learning foreign languages. gripped etch uperior 进阶训练二　用所给词的适当形式填空 (每小题1分，共6分) 1．The books were ________ (random) arranged on the shelves. 2．She ___________ (stun) by the amount of support she received from well-wishers. 3．He ________ (flip) the top off the bottle and poured himself a drink. 4．There were two loud __________ (explode)and then the building burst into flames. 5．“Luke? Are you OK？”the voice of Dad was ________ (urge).He shone a flashlight in my direction. 6．After 50 years of ________ (divide)，the country has a strong urge for reunification. randomly was stunned flipped explosions urgent division 进阶训练三　补全句子(每小题3分，共15分) 1．___________________________________________ (正当我回来拿手帕时)I first came across my new neighbors. 2．She stood at the gate ______________________________ (好像正在等人). 3．Unexpectedly, ________________________________________ (结果那天天气特别好). 4．He urged that ________________________________________________ (我们立即采取行动). 5．The two reports _________________________________________ (互相冲突)，so I don't know which to believe. It was when I got back to fetch my handkerchief that as if (she was) waiting for someone the weather turned out(to be) pretty nice that day we(should) take immediate action/take action immediately conflict with/come into conflict with each other 素能提升练 Ⅰ.阅读理解(每小题2．5分，共10分) (2023·郑州一中高二期中) If you are addicted to reading sci-fi，you may realize something.Contrary to the common misunderstanding that reading sci-fi is a worthless practice，reading it may help young people cope with(处理) the stress and anxiety and develop critical thinking skills and emotional intelligence. Historically，parents have considered literature “good” for young people if it provides moral guidance that reflects their own values.The question is，how does literature of sci-fi perform its educational function? This is central to the conflict over what kids should read.For a long time，those who read it have been stigmatized (侮蔑) as geeks who can't cope with reality. A new survey found that these sci-fi readers were also major consumers of a wide range of other types of books.In fact，the survey noted a close connection between reading varied literary forms and the ability to understand science. Rather than limiting readers' ability to deal with reality，exposure to outside-the-box stories may expand their ability to engage with reality based on science. Science fiction and fantasy do not need to provide a mirror image of reality in order to offer stories about serious social and political issues.In many sci-fi novels youths see examples of young people tackling with serious social，economic，and political issues.This gives readers an approach to coping with complexity and using their imagination to manage real-life challenges.It is why it is powerful and where its value lies.Sci-fi explores uncertainty and describes young people as brave characters，survivors and shapers of their own fates(命运).What better way to cope with the uncertainty in life than with sci-fi? Reading sci-fi，young people can see themselves responding，surviving and learning lessons that may enable them to create their own strategies for life. And the critical thinking and wise habits of mind shaped by this type of literature may actually produce creativity that everyday life and reality typically do not. 语篇解读　本文是一篇说明文。 研究发现读科幻小说可能会增强年轻人理解现实的能力，而不是限制他们处理现实的能力。 细节理解题。根据第二段中的“The question is，how does literature of sci-fi perform its educational function？”可知，科幻小说被许多家长拒绝是因为其缺乏教育功能。 1．Why is sci-fi rejected by many parents? A．It is highly addictive. B．It lacks educational functions. C．It disagrees with common sense. D．It seldom develops critical thinking. √ 细节理解题。根据第三段中的“Rather than limiting readers' ability to deal with reality，exposure to outside-the-box stories may expand their ability to engage with reality based on science.”可知，新的调查显示，阅读跳出固有的思维模式的故事不仅不会限制读者应对现实的能力，还可能增强他们理解基于科学的现实的能力。 2．What did the recent survey show? A．Sci-fi stories turned out to be creative. B．Reading sci-fi helped cope with real life. C．More other novels were consumed than sci-fi. D．Literature had a negative effect on mastering science. √ 观点态度题。根据第一段中的“reading it may help young people...emotional intelligence”、第三段中的“exposure to outside-the-box stories...based on science”、第四段中的“What better way...than with sci-fi？”和最后一段可推知，作者认为阅读科幻小说可以帮助年轻人更好地应对压力和生活中的不确定性等，因此作者对阅读科幻小说持赞成态度。 3．What's the author's attitude towards reading sci-fi? A．Indifferent.　　　　 B．Pessimistic. C．Objective. D．Favorable. √ 标题归纳题。通读全文，尤其根据第一段中的“Contrary to the common misunderstanding...emotional intelligence.”和最后一段的内容可知，文章主要介绍了研究发现阅读科幻小说可能会增强年轻人理解现实的能力，而不是限制他们处理现实的能力。阅读科幻小说可以帮助年轻人更好地应对现实。故A项最适合作本文标题。 4．What's the best title for the text? A．How does reading sci-fi benefit the young? B．Why does sci-fi appeal to the young? C．What pros and cons does sci-fi have? D．How does sci-fi turn into the mainstream? √ Ⅱ.完形填空 (每小题1分，共15分) (2023·广东佛山高二期中) At school，art class is fun.We 1 with different techniques and generally get creative.However，a field trip to an art gallery is often 2 ．Last year my art teacher organised a trip to an art exhibition.The gallery was full of older people，who obviously didn't want to be with 3 students.We all got 4 and couldn't stop chatting.Our teacher was getting 5 and kept telling us to be quiet. The next day we complained to our teacher about the 6 of activities for teens at art galleries.She 7 that a visit should be both educational and fun. That's when I decided to go online and look for art galleries that have special 8 for teens.Eventually，I 9 to find a huge range of activities and proposed some to my teacher. I also used the 10 to learn about artists.Recently，I found a contemporary artist called Martin Bailey.I've 11 seen artists who combine different techniques，but Bailey is totally different.He does unique illustrations with 12 household objects such as umbrellas，headphones and even cookies.His art is simple，but it makes you see things 13 ．For example，he notices that a flower is similar to a mop and puts this 14 into life by drawing a little man with a real flower mop.It's really 15 ！ I hope I'll be able to go to an exhibition of his work in the future. 语篇解读　本文是一篇记叙文。文章主要讲述了作者经历了一次不愉快的艺术展览之旅后，开始在网上寻找适合青少年的艺术展览，逐渐燃起了对绘画的探索兴趣。 1．A．handle　　　　　　 B．start C．struggle D．experiment 2．A．disappointing B．challenging C．exciting D．interesting 根据上文表示转折的词However 以及下文的“The next day we complained to our teacher about...”可知，去美术馆的活动经常令学生们感到失望。故选A项。 √ √ 根据上文“art class is fun”和下文“different techniques and generally get creative”可知，在美术课上，学生们尝试了各种绘画技巧。experiment在此处作动词使用，意为“尝试”。故选D项。 3．A．noisy B．careless C．attentive D．creative 4．A．annoyed B．bored C．lost D．worried 根据空后的“couldn't stop chatting”和下文的“look for art galleries that have special for teens”可知，美术馆里没有专门针对青少年的活动，因此学生们在美术馆里感到无聊，所以一直在聊天。故选B项。 √ √ 根据下文“We all got and couldn't stop chatting.Our teacher was getting and kept telling us to be quiet.”可知，学生们在美术馆是吵闹的。故选A项。 5．A．weak B．sensitive C．stressed D．tired 6．A．lack B．theme C．result D．schedule 根据下文中的“That's when I decided to go online and look for art galleries that have special for teens.”可知，美术馆里没有专门针对青少年的活动。lack意为“缺乏”。故选A项。 √ √ 根据上文“couldn't stop chatting”可知，老师看到学生在美术馆里聊天，担心影响他人，所以有些焦虑(stressed)，一直在告诉学生们保持安静。故选C项。 7．A．announced B．demanded C．suggested D．agreed √ 根据下文中的“That's when I decided... for teens.”和“proposed some to my teacher”可知，此处表示老师也赞同参观美术馆的活动应该既有教育意义又有趣，对应接下来作者上网去寻找适合青少年的美术馆并推荐给老师。故选D项。 8．A．gifts B．prices C．paintings D．events √ 根据上文中的“The next day we complained to our teacher about the of activities for teens at art galleries.”可知，作者是去寻找有专为青少年举办活动的美术馆。此处events与上文中的activities为近义词复现。故选D项。 9．A．happened B．determined C．managed D．expected 10．A．activity B．Internet C．trip D．exhibition 根据上文的“go online and look for art galleries”以及空前的also可知，此处指的是作者通过网络了解艺术家。故选B项。 √ √ 根据下文“find a huge range of activities and proposed some to my teacher”可知，作者成功找到了适合青少年的美术馆。manage to do sth 为固定表达，意为“设法做成某事”。故选C项。 11．A．already B．never C．merely D．obviously 12． A．useful B．fancy C．suitable D．ordinary 根据下文“such as umbrellas，headphones and even cookies”可知，该艺术家是将普通的物件投射到艺术创作中。故选D项。 √ √ 根据下文“but Bailey is totally different”可知，作者已经了解了许多不同的艺术家，才能作出比较。故选A项。 13．A．clearly B．directly C．differently D．critically 14．A．design B．idea C．plant D．tool 根据上文“a flower is similar to a mop”可知，这是对常见事物的一种看法或者观点。故选B项。 √ √ 根据下文介绍的花朵形状的拖把可知，该艺术家的艺术理念很简单，但可以让人们从不同的角度对事物进行欣赏。故选C项。 15．A．abstract B．amusing C．strange D．practical √ 根据下文“I hope I'll be able to go to an exhibition of his work in the future.”可知，正是这很有趣的画面使作者期待未来能去参观这位画家的画展。amusing意为“有趣的；逗人笑的”。故选B项。 Ⅲ.语法填空(每小题1.5分，共15分) (2023·河北辛集中学高二期中) It's hard to keep up with technology，especially 1._________science fiction becomes science fact.For decades，we 2. ____________ (watch) movies about a future with flying cars. Now，we saw a real one. A flying prototype(样机) AirCar 3.____________(successful) completed a test flight between two cities in Slovakia.The 90-kilometre journey took 35 minutes.AirCar is from a company called Klein Vision.The company founder said，“4._______(fly) at a height of 2，500 metres and a speed of about 190 kph，it has turned science fiction into a 5. _______ (real).” when/as have watched successfully Flying reality AirCar is a road-legal car that 6._________(transform) into an aircraft in less than three minutes.The CEO Professor Stefan Klein flew and landed the vehicle on its test flight.After landing at Bratislava Airport，he pushed one button 7._______(turn) the aircraft into a sports car and drove 8.____ into downtown Bratislava.He described the flight as “normal” and “very pleasant”．His company is working on a newer AirCar.This will have a 9._________ (power) engine that is capable of a cruising speed of 300 kph and a range of 1，000 kilometres.The newer model will be a four-seater as opposed 10.___ the two-seater that was recently tested. 语篇解读　本文是一篇说明文。 Klein Vision公司最新研发的飞行汽车的成功试飞使科幻小说变成了现实。 transforms to turn it powerful to 考查动词的时态和主谓一致。根据 For decades 可知，此处应用现在完成时，表示从过去某时开始延续到现在并且可能延续下去的动作，主语为复数，故填have watched。 1．答案：when/as 2．答案：have watched 考查状语从句。此处用 when/ as 引导时间状语从句，表示“当……时”。 考查非谓语动词。fly 与 it(指代 AirCar)之间是逻辑上的主谓关系，故用动词-ing形式。 3．答案：successfully 4．答案：Flying 考查词性转换。空处作状语修饰 completed，应用副词形式。 考查动词的时态和主谓一致。that 指代 a road-legal car，为第三人称单数，故谓语动词应用单数；根据空前的is可知，应用一般现在时。故填transforms。 5．答案：reality 6．答案：transforms 考查词性转换。根据空前的a可知，此处应用名词形式，表示“事实”。 考查代词。空处指代a sports car，应用it。 7．答案：to turn 8．答案：it 考查非谓语动词。此处用动词不定式作目的状语。 考查介词。as opposed to意为“相对于”，为固定用法。 9．答案：powerful 10．答案：to 考查词性转换。根据空前的a和空后的engine可知，此处应用形容词形式。 返回 谢 谢 观 看 ！ 返回 $$