数词（2）-知识点训练卷 安徽省分类考试招生和对口招生《英语考纲百套卷》第6卷（原卷版+解析版）

编写说明：安徽省分类考试招生和对口招生《英语考纲百套卷》，依据《中等职业学校公共基础课课程标准》（2020年版）及近五年安徽省英语真题分析编写。本套试卷共76份：第一部分是按照基础语法知识点写的41份知识点训练卷。第二部分是语法和词汇、阅读理解等20份专项训练卷。第三部分是按照课程标准及安徽省分类考试招生和对口招生英语考试命题趋势编写的15份综合模拟卷。 本试卷是安徽省分类考试招生和对口招生《英语考纲百套卷》的第6卷，是知识点训练卷。 安徽省分类考试招生和对口招生《英语考纲百套卷》第6卷 知识点训练卷·数词（2） 考试时间：50分钟 满分：70分 班级 姓名 学号 成绩 一、语法和词汇（共30小题，每小题2分，共60分） 从每小题所给的四个选项中，选出一个可以填入空白处的最佳选项。 1． The woman looks so young and confident that I can't believe that she is in her ____ . And even more surprising, she' ll have her 70th birthday party next month. A．forties B．fifties C．sixties D．seventies 【答案】C 【详解】句意：那个女人看起来如此年轻自信，我简直不敢相信她已经六十多岁了。更令人惊讶的是，她下个月将举行70岁生日聚会。A.四十多；B.五十多；C.六十多；D.七十多。in one's+整十的复数，表示在某人几十多岁，根据she' ll have her 70th birthday party next month.她下个月将举行70岁生日聚会，可知是六十多岁，故选C。 2．It's said that _______ people flew to Paris during the Easter week. A．thousand of B．thousands of C．two thousands D．two thousand of 【答案】B 【详解】考查数词的用法。thousand前有具体数字时，用单数形式; 后跟of时加s。故选B。 3． On Mid - Autumn Day, ____ of families get together to celebrate it. A．hundred B．hundreds C．one hundred D．two hundreds 【答案】B 【详解】考查数词的用法。hundred前有具体数字时，用单数形式; 后跟of时加s。故选B。 4． — Can you finish the work on time? —No, we need____hours to finish it. A．two much B．another two C．more two D．two another 【答案】B 【详解】句意：——你们能按时完成工作吗？——不能，我们还需要两个小时来完成它。A. two much错误表达；B. another two另外两个，相当于two more；C. more two应改为two more；D. two another错误表达。根据句意可知，此处指"再多两个小时"，表示"再多两个……"可以用"another + 数词"或"数词 + more"，故选B。 4． The Great Wall is famous, so every year _______people come to visit it. A．million B．million of C．millions of D．two millions 【答案】C 【详解】句意：长城很出名，所以每年有数百万的人来参观。此处表示的是概数， millions of 表示“数百万的”固定搭配。million和基数词连用必须用单数，故选C。 6． People in this town plant ____ trees on the mountain every spring. A．hundred B．hundreds C．hundreds of D．hundred of 【答案】C 【详解】句意：这个镇上的人每年春天在山上种植数百棵树。hundred表示具体数目时，不加s，如three hundred三百；表示约数时用hundreds of表示"数百"，选项中"hundreds of"是正确的表达。故选C。 7． ____children had a good festival on the ____Children's Day. A．Millions of, sixty B．Ten million; sixty C．Millions of, sixtieth D．Ten millions; sixtieth 【答案】C 【详解】句意：数百万的孩子在第60个儿童节那天度过了一个美好的节日。millions of成百上千的，ten million一千万，sixty六十，sixtieth第六十。基数词+ million+名词复数形式，表示"几百万……"表确数，millions of+名词复数表示"数百万的……"，表约数，故第一个空填millions of，表示数百万的，或 ten million表示一千万，都可以，所以排除D。再根据句中on the Children's Day可知，关键词Children's Day是单数，可知其修饰词不是基数词sixty，再结合句意孩子们应该庆祝的是第六十个儿童节，符合逻辑，故用序数词，sixty的序数词是sixtieth，再排除A，B。故选C。 8． There were about six ____students in the school building, but only ____of them ran out. A．hundred; two third B．hundred; two thirds C．hundreds; two thirds D．hundreds; two third 【答案】B 【详解】句意：在地震期间在学校大楼里大约有六百个学生。但只有三分之二的学生跑了出来。hundred百；two thirds三分之二。hundred，thousand，million等和具体数字连用时，不加s。根据空前有数字six，所以 hundred不加s；在英语中分子用基数词表达，分母用序数词表达，如果分子大于1，分母变复数，所以三分之二表达为 two thirds。故选B。 9． When he was ____he left home to work in different cities. A．in his twenty B．at his twenty C．in his twenties D．at his twenties 【答案】C 【详解】句意：他在二十多岁时离开家去不同的城市工作。根据句意可知，此处指"在他20多岁时"，in one's 数字整数的复数表达，在……岁时，固定短语。C项符合题意，是指一个人年纪在20到29岁之间，用于表示一个人在二十多岁时的范围，故选C。 10． December is ____and last month in a year. A．the twelveth B．twelveth C．the twelfth D．twelfth 【答案】C 【详解】句意：十二月是一年的第十二个月以及最后一个月。根据常识可知，十二月是一年的第十二个月。第十二，要用序数词，twelve是基数词，序数词是twelfth，且序数词一般和定冠词 the连用，C项符合题意，故选C。 11． I was told they would stay in China for ____ A．one and a half years B．one and a half year C．one and half years D．one half and one year 【答案】A 【详解】句意：我听说他们将在中国待一年半。根据英语常识可知，一年半不止一年，应用复数形式，排除选项B、D，而且one and a half years或one year and a half表示"一年半"，其他选项表达错误。故选A。 12． In the early ____ century, mobile phones became popular ____ people. A．twenty-one; in B．twenty-one; among C．twenty-first; of D．twenty-first; with 【答案】D 【详解】句意： 在21世纪初，移动电话开始很受人们欢迎。twenty-one二十一，基数词；twenty-first第二十一，序数词，in在……里面，among在……之间，of……的，with和，第一空指某个世纪，用序数词，第二空是固定搭配become popular with变得受……欢迎，固定短语，故选D。 13．— How many ____ are there in your school? — About eight ____ . A．boy students; hundreds B．boy students; hundred C．boys students; hundred D．boys students; hundreds 【答案】B 【详解】句意：——你的学校有多少男学生？——大约八百名。boy student男学生，复合名词，复数是boy students，排除C和D；hundred前面有具体数字时，单词后面不加s，前面没有具体数字，后面有介词of时，单词后面要加s，第二空空前有具体数字，故选B。 14． — Almost____ of the students in our school____ boys. A．Three quarter, are B．Three quarters, are C．Three quarters, is D．Third quarter, is 【答案】B 【详解】句意：我们学校几乎四分之三的学生是男生。分数的表达为：分子用基数词，分母用序数词，四分之三的表达为three quarters。当分数修饰名词，be动词与of后的名词students保持一致，应用are，故选B。 15． ____, Mr. Smith came to China. He was ____ then, I remember. A．In 1990s, in the thirties B．On the 1990s, in the thirty C．In the 1990s, in his thirties D．On 1990s, in his thirties 【答案】C 【详解】句意：20世纪90年代，史密斯先生来到中国。我记得他当时三十多岁。第一空表示年代，用In the 1990s表示"在20世纪90年代"；第二空表示年龄，用"in one's +数词复数"表示"在某人多少岁的时候"。故选C。 16．—How long is the bridge? —It's ___________. A．300-metre-long B．300-metres long C．300 metres long D．300 metre long 【答案】C 【详解】句意：——这座桥有多长？——三百米。描写某东西的形状时直接用基数词+名词复数+形容词结构，基数词-名词单数-形容词，作用相当于形容词，只能用于修饰名词，故选C。 17．—____ is the population of Shenzhen? — It's over ten ____. A．How many; million. B．What; millions C．What; million D．How large; millions 【答案】C 【详解】句意：——深圳的人口是多少？——一千多万。how many多少，询问可数名词复数；what什么，询问事或物；how large多大，询问大小；what is the population of…询问人口，固定句型，排除A和D；million百万，前面有具体数字时，单词后面不加s ，前面没有具体数字，后面有介词of时，单词后面要加s，millions of数以百万计的，固定搭配，第二空空前有基数词ten，用million，故选C。 18． ____ of people rushed into the square to celebrate the ____ World Theatre Day. A．Hundreds; four B．Hundred; fourth C．Hundred; four D．Hundreds; fourth 【答案】D 【详解】句意：数百人涌入广场庆祝第四个世界戏剧日。Hundreds of"数百的"；第二空需用序数词fourth"第四"表示顺序，故选D。 19． ____ of my students are girls. A．Two three B．Second third C．Two third D．Two thirds 【答案】D 【详解】句意：我学生中三分之二的是女孩。英文分数表达：分母用序数词，分子用基数词，分子大于一时分母用复数。3是分母，所以用序数词third，2是分子，所以用基数词two，分子2大于1，所以分母third用复数thirdss，所以三分之二用two thirds，故选D。 20． The city now is ____ as it was before. A．three times big B．three times bigger C．three times as big D．three times so big 【答案】C 【详解】句意：这座城市现在是以前的三倍大。根据"The city now is…as it was before."可知，此处指这座城市现在是以前的三倍大；倍数的表达方式有两种："A+谓语动词+倍数+as/so+形容词原级+as B"和"A+谓语动词+倍数+形容词的比较级+than B"；肯定句中用"as…as"，否定句中用"so…as"；此句为肯定句，空后为as，空处应用three times as big。故选C。 21． In the morning, we usually have ____ classes, and the ____ class is math. A．four; two B．second; four C．fourth; second D．four; second 【答案】D 【详解】句意：上午，我们通常有四节课，第二节课是数学。four四，基数词， two基数词，二；基数词表示数量；second第二，序数词； fourth第四，序数词。序数词表示顺序。分析句子可知和第一空后面的复数名词classes ，可知这里表示上午有四节课，表示数量，根据第二个空后面的单数名词class，可知表示第二节课，表示顺序，用序数词。故答案为D。 22． Zheng Qinwen, a ____-year-old girl, has won the first-ever Olympic gold medal for Chinese tennis. Many people were moved to tears when she ____ on the red court at that moment. A．twenty-first; lied B．twenty-first; laid C．twenty-one; was lying D．twenty-one; was laying 【答案】C 【详解】句意： 郑钦文，一个21岁的女孩，为中国网球赢得了有史以来第一枚奥运金牌。当她躺在红土场上的那一刻，很多人感动得热泪盈眶。第二十一，序数词，表日期等； twenty-one二十一，基数词；lied 说谎，动词过去式；laid放置/下蛋，动词过去式；was lying正躺着，过去进行时；was laying正在下蛋，过去进行时。第一空根据 a ____-year-old girl，可知是表示一个21岁的女孩，应用"基数词-year-old"作定语，排除AB；第二空根据 on the red court红土场，可知应是躺在上面，应用过去进行时was lying 。故选C。 23． More than two ____ students will take part in the sports meet. A．hundreds B．hundreds of C．hundred D．hundred of 【答案】C 【详解】句意：200多名学生将参加运动会。表示确切的数量，用基数词+数词单数形式；表示概数，用数词的复数形式+of。此处有确切的数字two。故选C。 24．Boys and girls, please turn to Page _____ and look at the _____ picture. A．Fifth; five B．Five; five C．Fifth; fifth D．Five; fifth 【答案】D 【详解】句意：孩子们，请翻到第五页，看第五幅图画。表示计量单位时，基数词位于单位名词之后，序数词位于单位名词之前，并且加定冠词the。Page five=the fifth page“第五页”。the fifth picture“第五幅图画”。故选D。 25． —How long is the table? —It's ____. A．two meters long B．two meter long C．two-meters long D．two meter long's 【答案】A 【详解】句意：——这张桌子有多长？——有2米长。A2米长，通常做表语，B错误形式，two基数词修饰名词复数，C错误形式，基数词-名词单数 long，几米长的，复合形容词，D错误形式，long是形容词没有所有格的用法。is后缺少表语，故用two meters long，故选A。 26． Our home town is becoming more and more beautiful. ____ visitors come here on weekends. A．Thousand B．Thousands C．Thousand of D．Thousands of 【答案】D 【详解】句意：我们的家乡变得越来越美丽。……游客在周末来这里。thousand意为千，当其与具体的数字连用时，其后面不加s，也不加of；当thousand不与具体数字连用，而是表示不确切的数目时，其后面要加s，并与of连用，即thousands of，意思是成千上万或几千。根据句意可知，句子表达的游客数量为不确切的数目，选项Thousands of最符合题意，故答案为D。 27． We all know that ____ birds fly to the Dongting Lake in winter. A．million B．millions C．millions of D．million of 【答案】C 【详解】句意：我们都知道。数以百万计的鸟类在冬天飞往洞庭湖。数词million百万，基数词+million ，表示具体的数字几百万。millions of，数以百万计的，句子当中没有基数词，所以用millions of，故选C。 28．——What class are you in? —I am in A．Class three, Grade seven B．Class Three, Grade Seven C．Three Class, Seven Grade D．Grade seven, Class three 【答案】B 【详解】句意：——你在几年级几班？——我在七年级三班。表示几年级几班用Class+基数词，Grade+基数词，排除C、D，注意基数词首字母大写，排除A，故选B。 29． —____ do you exercise? —I play tennis ____a week. A．How long, twice B．How often, second C．How often, twice D．How long, second 【答案】C 【详解】句意：——你多久锻炼一次？——我一周打两次网球。A. How long 多长时间；twice 两次 B. How often 多久一次；second 第二 C. How often 多久一次；twice 两次 D. How long 多长时间；second 第二。在询问锻炼频率时，应该使用"How often"，表示"多久一次"。"How long"通常用来询问时间的持续长度。"twice"表示"两次"，符合句意中提到的一周打两次网球。"second"作为序数词，在这里不合适。故选C。 30． Mary likes reading and she has ____ books in her room. A．hundreds of B．hundred C．two hundreds D．two hundred of 【答案】A 【详解】考查数词的用法。hundred前有具体数字时，用单数形式; 后跟of时加s。故选B。 二、阅读理解（共5小题，每小题2分，共10分） 阅读下列短文，根据短文内容从每小题所给的四个选项中，选出一个最佳选项。 One of the best parts of autumn is its beautiful colors. Normally green leaves turn into red, orange, yellow, and finally brown. This is called "leaf phenology", and many people look forward to it every year. However, due to climate change, autumn is changing. According to a study published earlier this year in a journal, the season length is growing, meaning that it is taking longer for leaves to change their colors. And this is not the only way that climate change is ruining the season. "Trees are holding onto their leaves longer, " explained Dr. Howard Diamond, a senior climate scientist"In my own neighborhood, I can remember that the leaves would drop a lot sooner 20 years ago than they do now. This is a personal observation, but research actually supports this phenomenon we're witnessing. Climate change isn't just causing the leaves to change later. We can also expect later frosts(霜) according to Dr. Michael E. Mann, a professor of the University of Pennsylvania. Mann said" That means mosquitoes and pests remain active for a longer time in autumn, posing a greater health risk to human beings. If there is any good news at all, though, we may be able to stave off this development. Mann pointed out that if humans limit their carbon dioxide emissions, they can still prevent the worst effects of climate change from affecting them during the autumn months. "A new study recently provides further evidence that surface warming will likely stop after carbon emissions reach zero, " Mann stated in his recent comment for Live Science. 31．Which of the following is one of the effects of climate change on autumn? A．The season length is becoming shorter. B．Leaves are changing their colors earlier. C．Leaves are staying on the trees for a longer time. D．There are more frosts in autumn. 32．What can we infer from Dr. Michael E, Mann's words in paragraph 4? A．Mosquitoes will disappear completely if there are earlier frosts. B．Later frosts in autumn are beneficial to people's health. C．People should take measures to kill mosquitoes and pests in autumn. D．The longer mosquitoes and pests are active, the more dangerous it is for people. 33．What does underlined phrase "stave off" probably mean in paragraph 5? A．Make something happen faster. B．Stop something from happening. C．Change something completely. D．Let something develop naturally 34．What is the author's purpose in writing this passage? A．To tell readers about the beautiful colors of autumn. B．To introduce the research of Dr. Howard Diamond and Dr. MichaelE. Mann. C．To show how climate change is affecting autumn. D．To draw people's attention to environmental protection. 35．Which of the following is the best structure of the passage? A． B． C． D． 【答案】31．C 32．D 33．B 34．C 35．A 【详解】本文是一篇科普类说明文。文章主要讲述了气候变化对秋季的影响，包括树叶变色时间延长、霜冻推迟等现象，并指出人类可以通过减少二氧化碳排放来减缓这些影响。 31．细节理解题。根据第二段"According to a study published earlier this year in a journal, the season length is growing, meaning that it is taking longer for leaves to change their colors.（ 根据今年早些时候发表在一本期刊上的一项研究，秋季持续的时间正在变长，这意味着树叶变色所需的时间变得更长了。 ）"可知，气候变化导致秋季变长，树叶在树上停留的时间更长。故选C。 32．推理判断题。根据第四段"That means mosquitoes and pests remain active for a longer time in autumn, posing a greater health risk to human beings.（ 这意味着蚊子和害虫在秋季会保持更长时间的活跃，给人类健康带来更大的风险。 ）"可知，霜冻推迟导致蚊虫和害虫在秋季活跃时间更长，对人类健康构成更大威胁。故选D。 33．词义猜测题。根据第五段"Mann pointed out that if humans limit their carbon dioxide emissions, they can still prevent the worst effects of climate change from affecting them during the autumn months.（ 曼恩指出，如果人类限制二氧化碳排放，仍然可以防止气候变化的最坏影响在秋季对他们造成影响。 ）"可知，如果人类限制二氧化碳的排放，他们仍然可以防止气候变化的最严重影响在秋季影响他们，由此可知，我们可以阻止这种发展，划线单词表示"阻止某事发生"。故选B。 34．主旨大意题。根据第一段"However, due to climate change, autumn is changing.（ 然而，由于气候变化，秋天正在发生变化。 ）"及全文可知，本文主要讲述了气候的变化对秋天的影响。故选C。 35．篇章结构题。第一段引出主题，介绍气候变化对秋天有影响；第二到第四段具体介绍带来的变化；第五段介绍了其解决办法。A选项符合文章结构。故选 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$ 编写说明：安徽省分类考试招生和对口招生《英语考纲百套卷》，依据《中等职业学校公共基础课课程标准》（2020年版）及近五年安徽省英语真题分析编写。本套试卷共76份：第一部分是按照基础语法知识点写的41份知识点训练卷。第二部分是语法和词汇、阅读理解等20份专项训练卷。第三部分是按照课程标准及安徽省分类考试招生和对口招生英语考试命题趋势编写的15份综合模拟卷。 本试卷是安徽省分类考试招生和对口招生《英语考纲百套卷》的第6卷，是知识点训练卷。 安徽省分类考试招生和对口招生《英语考纲百套卷》第6卷 知识点训练卷·数词（2） 考试时间：50分钟 满分：70分 班级 姓名 学号 成绩 一、语法和词汇（共30小题，每小题2分，共60分） 从每小题所给的四个选项中，选出一个可以填入空白处的最佳选项。 1． The woman looks so young and confident that I can't believe that she is in her ____ . And even more surprising, she' ll have her 70th birthday party next month. A．forties B．fifties C．sixties D．seventies 2．It's said that _______ people flew to Paris during the Easter week. A．thousand of B．thousands of C．two thousands D．two thousand of 3． On Mid - Autumn Day, ____ of families get together to celebrate it. A．hundred B．hundreds C．one hundred D．two hundreds 4． — Can you finish the work on time? —No, we need____hours to finish it. A．two much B．another two C．more two D．two another 5．The Great Wall is famous, so every year _______people come to visit it. A．million B．million of C．millions of D．two millions 6． People in this town plant ____ trees on the mountain every spring. A．hundred B．hundreds C．hundreds of D．hundred of 7． ____children had a good festival on the ____Children's Day. A．Millions of, sixty B．Ten million; sixty C．Millions of, sixtieth D．Ten millions; sixtieth 8． There were about six ____students in the school building, but only ____of them ran out. A．hundred; two third B．hundred; two thirds C．hundreds; two thirds D．hundreds; two third 9． When he was ____he left home to work in different cities. A．in his twenty B．at his twenty C．in his twenties D．at his twenties 10． December is ____and last month in a year. A．the twelveth B．twelveth C．the twelfth D．twelfth 11． I was told they would stay in China for ____ A．one and a half years B．one and a half year C．one and half years D．one half and one year 12． In the early ____ century, mobile phones became popular ____ people. A．twenty-one; in B．twenty-one; among C．twenty-first; of D．twenty-first; with 13．— How many ____ are there in your school? — About eight ____ . A．boy students; hundreds B．boy students; hundred C．boys students; hundred D．boys students; hundreds 14． — Almost____ of the students in our school____ boys. A．Three quarter, are B．Three quarters, are C．Three quarters, is D．Third quarter, is 15． ____, Mr. Smith came to China. He was ____ then, I remember. A．In 1990s, in the thirties B．On the 1990s, in the thirty C．In the 1990s, in his thirties D．On 1990s, in his thirties 16．—How long is the bridge? —It's ___________. A．300-metre-long B．300-metres long C．300 metres long D．300 metre long 17． —____ is the population of Shenzhen? — It's over ten ____. A．How many; million. B．What; millions C．What; million D．How large; millions 18． ____ of people rushed into the square to celebrate the ____ World Theatre Day. A．Hundreds; four B．Hundred; fourth C．Hundred; four D．Hundreds; fourth 19． ____ of my students are girls. A．Two three B．Second third C．Two third D．Two thirds 20． The city now is ____ as it was before. A．three times big B．three times bigger C．three times as big D．three times so big 21． In the morning, we usually have ____ classes, and the ____ class is math. A．four; two B．second; four C．fourth; second D．four; second 22． Zheng Qinwen, a ____-year-old girl, has won the first-ever Olympic gold medal for Chinese tennis. Many people were moved to tears when she ____ on the red court at that moment. A．twenty-first; lied B．twenty-first; laid C．twenty-one; was lying D．twenty-one; was laying 23． More than two ____ students will take part in the sports meet. A．hundreds B．hundreds of C．Hundred D．hundred of 24．Boys and girls, please turn to Page _____ and look at the _____ picture. A．Fifth; five B．Five; five C．Fifth; fifth D．Five; fifth 25． —How long is the table? —It's ____. A．two meters long B．two meter long C．two-meters long D．two meter long's 26． Our home town is becoming more and more beautiful. ____ visitors come here on weekends. A．Thousand B．Thousands C．Thousand of D．Thousands of 27． We all know that ____ birds fly to the Dongting Lake in winter. A．million B．millions C．millions of D．million of 28．——What class are you in? —I am in __________ A．Class three, Grade seven B．Class Three, Grade Seven C．Three Class, Seven Grade D．Grade seven, Class three 29． —____ do you exercise? —I play tennis ____a week. A．How long, twice B．How often, second C．How often, twice D．How long, second 30． Mary likes reading and she has ____ books in her room. A．hundreds of B．hundred C．two hundreds D．two hundred of 二、阅读理解（共5小题，每小题2分，共10分） 阅读下列短文，根据短文内容从每小题所给的四个选项中，选出一个最佳选项。 One of the best parts of autumn is its beautiful colors. Normally green leaves turn into red, orange, yellow, and finally brown. This is called "leaf phenology", and many people look forward to it every year. However, due to climate change, autumn is changing. According to a study published earlier this year in a journal, the season length is growing, meaning that it is taking longer for leaves to change their colors. And this is not the only way that climate change is ruining the season. "Trees are holding onto their leaves longer, " explained Dr. Howard Diamond, a senior climate scientist"In my own neighborhood, I can remember that the leaves would drop a lot sooner 20 years ago than they do now. This is a personal observation, but research actually supports this phenomenon we're witnessing. Climate change isn't just causing the leaves to change later. We can also expect later frosts(霜) according to Dr. Michael E. Mann, a professor of the University of Pennsylvania. Mann said" That means mosquitoes and pests remain active for a longer time in autumn, posing a greater health risk to human beings. If there is any good news at all, though, we may be able to stave off this development. Mann pointed out that if humans limit their carbon dioxide emissions, they can still prevent the worst effects of climate change from affecting them during the autumn months. "A new study recently provides further evidence that surface warming will likely stop after carbon emissions reach zero, " Mann stated in his recent comment for Live Science. 31．Which of the following is one of the effects of climate change on autumn? A．The season length is becoming shorter. B．Leaves are changing their colors earlier. C．Leaves are staying on the trees for a longer time. D．There are more frosts in autumn. 32．What can we infer from Dr. Michael E, Mann's words in paragraph 4? A．Mosquitoes will disappear completely if there are earlier frosts. B．Later frosts in autumn are beneficial to people's health. C．People should take measures to kill mosquitoes and pests in autumn. D．The longer mosquitoes and pests are active, the more dangerous it is for people. 33．What does underlined phrase "stave off" probably mean in paragraph 5? A．Make something happen faster. B．Stop something from happening. C．Change something completely. D．Let something develop naturally 34．What is the author's purpose in writing this passage? A．To tell readers about the beautiful colors of autumn. B．To introduce the research of Dr. Howard Diamond and Dr. MichaelE. Mann. C．To show how climate change is affecting autumn. D．To draw people's attention to environmental protection. 35．Which of the following is the best structure of the passage? A． B． C． D． 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$