【教育资料】人教版高中英语必修四 Unit2 Working the land-词汇篇(学生版)学习专用

Unit2 Working the landVocabulary and Useful ExpressionsStep1.重点难点1. In many ways, he is one of them, and he struggled for the past five decades to help them.In a way; in one way; in some ways 在某种程度上2．However, he cares little about spending the money on himself or leading a comfortable life.care v. 在乎,在意，喜欢，有兴趣spend sth. … on …在某方面花费spend … (in) doing sth. 花费…做某事3．Wishing for nothing, however, costs nothing.wishing for nothing 动名词短语做主语，谓语动词用单数。

however 是插入语，表示语气的一种转折。

4．It also refers to crops growing with natural rather than chemical fertilizers.refer to 与…有关，关系到某人、某事；提到，涉及；参考5．Instead, organic farmers insist on changing crops every two or three years.insist on 坚持要求；insist后面可以跟从句，其中谓语动词常用should + 动词原形构成6．Dr. Yuan awoke from his dream with the hope of producing a kindof rice that could fees more people.with the hope of 带着某种希望7．He used to walk to his fields twice a day, but now he prefers to ride his motorcycle.used to 过去常常（现在已经不是如此）be used to doing 意思是“习惯于”prefer to do (rather than do) 相比之下更喜欢做某事8．But whatever they grow they make sure that what is left in the ground after harvesting becomes a natural fertilizer for the next year’s crop.whatever引导让步状语从句，表示“无论怎样”，相当于no matter what. Eg: Whatever you do, don’t give up.Step 2．功能句型建议（Suggestion & advice）I would rather … I don’t like … because …I’d prefer … because … It’s a great pity that …Should we/I …? It’s better to …If I have a choice I’d choose … because … You need to …May I suggest …? Let me suggest … because …Perhaps we should suggest … because … But what/how about …?Step 3. 重点单词及短语单词① hunger n. 饥饿，食欲；v. 渴望得到某事物，某人hunger for/after sth./sb.② struggle vi.stuggle with sb. 与某人争斗，搏斗struggle (against/with sb./sth.)struggle against/with sb./sth. (for sth.) 争斗，拼搏，奋斗，努力③ expand vi. (使某事物)变大，增强，伸展，张开expand on sth. 阐述或详述expansion n. 扩大，扩展，膨胀④ equip vt.equip sb./sth. (with sth.) 配备，装备equipment n. 设备，装备⑤ export vt. 输出；n. 出口业，出口品import vt. 进口⑥ circulate vi. vt. 使某物循环，流通，传播；vt. 发侧知告知某人 circulation n. 循环，流传，传播⑦ confuse vt. 把某人弄糊涂，使为难，打乱confusion n. 混乱，混淆⑧ reduce vt. 缩减，减小，降低reduction n. 减少，缩小⑨ supply vt. 供给，供应，满足；n. 供应，供给之物⑩ exchange vt. 交换，交易；n. 交换，更换，互访，交流 exhange sth. with sth.exchangeable adj. 可交换的，可退换的，可兑换的短语rid … of 清除，摆脱be satisfied with = be contented 感到满足，满意的would rather do sth. 宁可做某事refer to 与…有关，关系到某人，某事，提到，参考search for 寻找，搜寻thanks to 多亏，由于rather than 而不，宁愿…而不Unit2 Working the landWarming Up, Pre-reading and Reading Period 1 Warming up and pre-reading.Step 1 Lead-in.Poem By Li ShenFarmers weeding at noon,Sweat down the field soon. Who knows food on a tray,Due to their toiling day.Then let one student recite the poem in Chinese.Step 2 Warming up by questioningHello, everyone. We shall read about man who works the land today. Have you ever grown any plants? If not, what kind of plant would you like to grow? How will you grow it?(For reference: Mr. Li, I worked with my father in the rice field last year. We grow hybrid rice and use animal wastes to make the soil rich.)Has anyone of you ever been to the countryside? What did you do there? (For reference: I went to Chuankou the day before yesterday. It is a small mountain village 75 li north of Beijing. I went there to visit my uncle’s family. I like that small beautiful village very much. )Who are from a farmer’s family? What do you know about farming? Step 3 Pre-reading and talkingQuestioning and answeringRice is main food in South China. What do you think would happen if tomorrow there was suddenly no rice to eat?(For reference: Then the south people would have to change their eating habit. They could turn to potatoes, wheat flour, cow and sheep cheese, cabbage, onions and garlic for food. They are the bases ofthe traditional food in North China. )If you had the chance to do one thing to help end hunger in the world, what would you do?(For reference: I would try to end hunger by popularizing the advanced farming techniques. Modern techniques could be introduced to increase the rice output, and expand the area of fields.)Giving background information about Professor Yuan Longping Have you ever heard of a man called Professor Yuan Longping? Would anyone of you tell the class something about him?(For reference: Professor Yuan Longping is a Chinese agricultural scientist. Professor Yuan's breakthrough scientific achievement led to the world's first successful and widely grown hybrid rice varieties, revolutionizing rice cultivation in China and tripling production over a generation. His approach to rice breeding then spread internationally throughout Asia and to Africa and the Americas, providing food for tens of millions and leading to his becoming known as the "Father of Hybrid Rice."Step 4. ReadingReading aloud to the recordingComprehension—understanding what you are reading—is important. To read in thought groups is an easy, yet effective, way of improving reading comprehension. Now turn to page 9 and read aloud to therecording of the text A PIONEER FOR ALL PEOPLE. Pay attention to the thought groups in the sentences while listening and reading aloud.A brief introduction:Yuan Longping is known as China’s “father of hybrid rice”. It’s said that in China, we eat depending on “Two Ping” ---- Deng Xiaoping, who made the policy of System of Production Responsibility, & Yuan Longping, who invented hybrid rice.Yuan Longping, who was born in September, 1930, graduated from Agriculture Department in Southwest Agricultural Institute. He has been working on agriculture education & the research into hybrid rice since he left the institute.In the 1960s, when China was suffering from serious famine, he came up with the idea of hybrid rice, which has a high yield ( or output). Ten years later, he succeeded in inventing a new species that produced a 20 percent higher yield than common types of rice. Yuan devoted himself to the research into agriculture, & was honored by UNESCO & FAO(联合国教科文组织）. Although he is 74 years old, he is still working on the research into agriculture.Period 2 ReadingStep 1 Lead-in。

Unit2 Working the land单元总体教案1.重点难点1. In many ways, he is one of them, and he struggled for the past five decades to help them.In a way; in one way; in some ways 在某种程度上2．However, he cares little about spending the money on himself or leading a comfortable life.care v. 在乎,在意，喜欢，有兴趣spend sth. … on … 在某方面花费spend … (in) doing sth. 花费…做某事3．Wishing for nothing, however, costs nothing.wishing for nothing 动名词短语做主语，谓语动词用单数。

however是插入语，表示语气的一种转折。

4．It also refers to crops growing with natural rather than chemical fertilizers.refer to 与…有关，关系到某人、某事；提到，涉及；参考5．Instead, organic farmers insist on changing crops every two or three years.insist on 坚持要求；insist后面可以跟从句，其中谓语动词常用should + 动词原形构成6．Dr. Yuan awoke from his dream with the hope of producing a kind of rice that could fees more people.with the hope of 带着某种希望7．He used to walk to his fields twice a day, but now he prefers to ride his motorcycle.used to 过去常常（现在已经不是如此）be used to doing 意思是―习惯于‖prefer to do (rather than do) 相比之下更喜欢做某事8．But whatever they grow they make sure that what is left in the ground after harvesting becomes a natural fertilizer for the next year’s crop.whatever引导让步状语从句，表示―无论怎样‖，相当于no matter what.Eg: Whatever you do, don’t give up.2．功能句型建议（Suggestion & advice）I would rather …I don’t like … because …I’d prefer … because …It’s a great pity that …Should we/I …?It’s better to …If I have a choice I’d choose … because … You need to …May I suggest …? Let me suggest … because …Perhaps we should suggest … because … But what/how about …?3. 重点单词及短语单词① hunger n. 饥饿，食欲；v. 渴望得到某事物，某人hunger for/after sth./sb.② struggle vi.Struggle with sb. 与某人争斗，搏斗struggle (against/with sb./sth.)struggle against/with sb./sth. (for sth.) 争斗，拼搏，奋斗，努力③ expand vi. (使某事物)变大，增强，伸展，张开expand on sth. 阐述或详述expansion n. 扩大，扩展，膨胀④ equip vt.equip sb./sth. (with sth.) 配备，装备equipment n. 设备，装备⑤ export vt. 输出；n. 出口业，出口品import vt. 进口⑥ circulate vi. vt. 使某物循环，流通，传播；vt. 发侧知告知某人circulation n. 循环，流传，传播⑦ confuse vt. 把某人弄糊涂，使为难，打乱confusion n. 混乱，混淆⑧ reduce vt. 缩减，减小，降低reduction n. 减少，缩小⑨ supply vt. 供给，供应，满足；n. 供应，供给之物⑩ exchange vt. 交换，交易；n. 交换，更换，互访，交流exhange sth. with sth.exchangeable adj. 可交换的，可退换的，可兑换的短语rid … of清除，摆脱be satisfied with = be contented 感到满足，满意的would rather do sth. 宁可做某事refer to 与…有关，关系到某人，某事，提到，参考search for 寻找，搜寻thanks to 多亏，由于rather than 而不，宁愿…而不分课时教案Period 1 Warming up and Pre-reading.Step 1. Lead-in.Poem By Li ShenFarmers weeding at noon,Sweat down the field soon.Who knows food on a tray,Due to their toiling day.Then let one student recite the poem in Chinese.Step 2. Warming up by questioningHello, everyone. We shall read about man who works the land today. Have you ever grown any plants? If not, what kind of plant would you like to grow? How will you grow it?(For reference: Mr. Li, I worked with my father in the rice field last year. We grow hybrid rice and use animal wastes to make the soil rich.)Has anyone of you ever been to the countryside? What did you do there?(For reference: I went to Chuankou the day before yesterday. It is a small mountain village 75 li north of Beijing. I went there to visit my uncle’s family. I like that small beautiful village very much. )Who are from a farmer’s family? What do you know about farming?Step 3. Pre-reading and talkingQuestioning and answeringRice is main food in South China. What do you think would happen if tomorrow there was suddenly no rice to eat?(For reference: Then the south people would have to change their eating habit. They could turn to potatoes, wheat flour, cow and sheep cheese, cabbage, onions and garlic for food. They are the bases of the traditional food in North China. )If you had the chance to do one thing to help end hunger in the world, what would you do?(For reference: I would try to end hunger by popularizing the advanced farming techniques. Modern techniques could be introduced to increase the rice output, and expand the area of fields.) Giving background information about Professor Yuan LongpingHave you ever heard of a man called Professor Yuan Longping? Would anyone of you tell the class something about him?(For reference: Professor Y uan Longping is a Chinese agricultural scientist. Professor Yuan's breakthrough scientific achievement led to the world's first successful and widely grown hybrid rice varieties, revolutionizing rice cultivation in China and tripling production over a generation. His approach to rice breeding then spread internationally throughout Asia and to Africa and the Americas, providing food for tens of millions and leading to his becoming known as the "Father of Hybrid Rice."Step 4. ReadingReading aloud to the recordingComprehension—understanding what you are reading—is important. To read in thought groups is an easy, yet effective, way of improving reading comprehension. Now turn to page 9 and read aloud to the recording of the text A PIONEER FOR ALL PEOPLE. Pay attention to the thought groups in the sentences while listening and reading aloud.A brief introduction:Yuan Longping is known as China’s ―father of hybrid rice‖. It’s said that in China, we eat depending on ―Two Ping‖ ---- Deng Xiaoping, who made the policy of System of Production Responsibility, & Yuan Longping, who invented hybrid rice.Yuan Longping, who was born in September, 1930, graduated from Agriculture Department in Southwest Agricultural Institute. He has been working on agriculture education & the research into hybrid rice since he left the institute.In the 1960s, when China was suffering from serious famine, he came up with the idea of hybrid rice, which has a high yield ( or output). Ten years later, he succeeded in inventing a new species that produced a 20 percent higher yield than common types of rice.Yuan devoted himself to the research into agriculture, & was honored by UNESCO & FAO(联合国教科文组织）. Although he is 74 years old, he is still working on the research into agriculture. Step 5 课后反思：Period 2 ReadingStep 1. Lead-in. Listen to the tape carefully then answer these questions.1）When and who did become the first agricultural pioneer in the world to grow rice that has a high output?2）What did Yuan Longping invent?Step2. Read the passage once again,then find out these sentences true or false.1）Dr Yuan is more a farmer than a scientist.2）Dr Yuan’s kind of rice is the most suitable for China’s farmland.3）Dr Yuan would rather work than relax.4）Dr Yuan has dreams when he is asleep and also when he is awake.5）Dr Yuan enjoys a simpler life than most rich and famous people.Step3. Find out the topic sentences of each paragraphPara. 1: He became the first agricultural pioneer in the world to grow rice that has a high output. Para.2:He has devoted his life to finding ways to grow more and more rice..Para.3:He cares little about spending the money on himself and would rather keep time for his hobbies.Para.4 Dr. Yuan’s dreams.Step4. Write down Y uan Longping’s personal informationIn pairs, read the text, find information to complete the following form.Facts about Yuan Longping Facts abou t Yuan’s super hybridriceage capacityeducation applicationmajor contributionhobby overseasideal futureStep 5 课后反思：Period 3 using languageStep 1. Language points:1. Struggle for…为争取……而斗争Struggle against…为反对……而斗争Struggle wi th… 与……争斗1）The swimmer struggled against the tide.2）We had to struggle with/against all kinds of difficulties.3）The slaves struggled for the freedom2. 使做…成为… make +it +adj./n. +to do好天气使游泳成为可能The fine weather makes it possible( for us )to swim.他将每早跑步做为一个规则He makes it a rule to run every morning.其他可用这种结构的词:feel, find, think, consider…3.搜查,搜索search (sb. / sth.) for …He searched all the rooms for the missing person.They searched the man all over for money.4.由于,多亏thanks to 相当于because of5.是从前两倍那么多twice as large as before相当于once larger than before6.对……感到满意be satisfied with…相当于be pleased withadj. satisfactory/satisfyingn. satisfaction7.在乎，在意care about比较care forMy aunt cared for me when my parents were away last week.Dr Yuan never cares about money and fame.8. Indeed, his sunburn face and arms and his slim, strong body are like those of millions of other Chinese farmers.e.g: The streets in Beijing are wider than those in my hometown.The number of students in our school is larger than that in their school.9. Dr Yuan grows what is called super hybrid rice.e.g: He came to what is called America.10. This special strain of rice makes it possible to produce one -third more of the crop in the same fields.e.g: That made it possible for life to begin to develop.The development of science makes it possible for us to know more about the universe.11. Dr Yuan awoke from his dream with the hope of producing a kind of rice (that could feed more people).e.g: He went to the U.S with the hope of finding a better job there.Step 2. Closing down by having a dictationTo end the period you will take a dictation. It is about Yuan Longping, ―Father of Super hybrid rice‖.Yuan Longping, China's Most Famous "Farmer"Yuan came up with the idea of hybridizing rice for the first time in the world in 1960s. Since then, 50 percent of China's total rice cultivation fields have grown such rice, which added some 300 billion kilograms to the country's grain output. Furrows grown on his sunburnt face, aslim figure and coiled-up trousers legs would confuse foreign reporters who came to interview the most famous scientist in China, who would rather be called ―a farmer‖. Indeed, like many Chinese farmers, Yuan in his 70s and has devoted most of his life growing rice in paddy fields, but unlike those farmers, he reaps the seed from experimental fields only for hybridizing rice.Step 3 课后反思：Period 4 Listening, Speaking and WritingLearning Aims：To help students read the passage Organic Farming.To help students to use the language by reading, listening, speaking and writing.Teaching Procedures：Step 1. Warming up by listening and reading aloudLanguage is created to be listened to and spoken first. So open your book to page 13 and read it aloud while listening to the recording. Watch your pauses between the thought groups.Step 2. Guided reading1. Reading and translatingRead the text sentence by sentence, and put it into Chinese. Who will be the first to try. I will only have four of you to do this task.2. Reading and underliningNext you are to read and underline all the useful expressions or collocations in the passage. Copy them to your notebook after class as homework.Collocations from textgain a meaning, refer to…, make the soil fertile, natural waste from animals, put…in the field, make the soil rich, become healthy, develop a healthy soil, reduce diseases, grow strong and healthy, keep…free from…, leave…in the ground, as a result, get exhausted, kill bacteria and pests, insist on…, change crops, be followed by…, put…back into …, need a deeper level of soil, prefer doing sth., plant…between crops, prevent…from…, carry away…, make sure that3. Doing exercisesNow you are going to do exercises No. 1, 2 and 3 on page 14 following the article.4. ListeningFor listening turn to page 14 and then 15 for the listening exercises 1, 2 and 3. Are you ready? 5. Reading, speaking and writingWhen trying to argue people into or out of doing something we may use the following expressions:I would rather…I don’t like…because…I’d prefer…because It’s a great pity that…Should I / we…?It’s better to…This is good value because…If I have a choice I’d choose…becauseWhat is the advantage of…?You need to…In pairs you are to make up a dialogue to argue each other into or out adopting organic farming. I will argue with your monitor, Liang Bochao. Get started.Step 3. Guided writing1. Writing a posterWriting a poster which includes all the information about the uses of computer so that you will encourage more farmers to buy and use. You are asked to base your poster on the overall pattern of the article you learned Organic Farming. Limit your poster to between 200 and 250 words.2. Writing a speechWrite a speech for Professor Yuan Longping. He is to attend an international conference on modern agriculture. You may also make use of the library and network resources for the task. Step 4. Further applying1. Finding informationRead online to find as much information as possible about Professor Yuan Longping and his research group. Share your findings with you partner next time you are here.2. Writing a reportGo back home to interview your parents or your grandparents about China’s agriculture, its past and present situations. Write a report in English in about 500 words as a weekly project.3. Acting a text playTurn either one of the two articles into a text play. Rehearse it and play it in front of the class. The play shall last at least 10 minutes.Step 5. Closing down1.Closing down by filling a formTo end the period, please fill in the form below.What is organic farming?definitioncharacteristicspotentials2. Closing down by imagingImagine and write about what the agriculture will be like 50 years from now in the future. Use your imagination to compete for ―wild thinking prize‖.Step 6 课后反思：Period 5 Grammar and Useful Structures Learning AimsTo help students learn about The –ing form as the Subject & Object.To help students discover and learn to use some useful words and expressions.To help students discover and learn to use some useful structures.Teaching ProceduresStep 1. Warming upWarming up reading aloud the text A PIONEER FOR ALL PEOPLELanguage is learned in context. So let’s first r eview the text learned yesterday by reading it aloud. Try to force out your English slowly and clearly.Step 2. Discovering useful words and expressionsIn pairs do the exercises 1, 2 and 3 . You must finish them in 5 minutes.Step 3. Learning about grammar1. Read and identifyRead the text about Yuan Longping again, paying attention to the sentences which use the –ing form as the subject and object.In the sentence ―Wishing for things, however, cost nothing. ―the –ing is used as subject.It can be also used as object of the sentence. For example: Yuan Longping likes playing his violin.2. Consolidating by do exercisesTo consolidate your understanding you will be given 10 minutes to go over exercises 1,2,3,4 and 5 on pages 12 and 13. You may just writ e on your text book. I mean the student’s book you are working by.Step 4. Ready used materials for The v–ing form as the Subject & Object)语法学习——动名词1. 动名词作主语1）名词直接放在句首作主语。

人教版高中英语必修4《Unit 2 Working the land》教案人教版高中英语必修4《Unit 2 Working the land》教案【一】教学准备教学目标(1)知识目标：让学生通过阅读课文更多地了解我国著名的农业科学家袁隆平的科研成果及其影响。

(2)能力目标：让学生进一步使用恰当地阅读方式与技能，如略读(skimming)，快速阅读(fast reading)，细读(close reading)等(3)情感目标：让学生不但学习袁隆平的科研精神，更要学习他不计较名利，踏踏实实的生活态度。

教学重难点1.阅读课文更多地了解我国著名的农业科学家袁隆平的科研成果及其影响。

教学过程1. 话题的引导。

(Pre-reading)1).开头通过设计了一首熟悉的诗歌，让学生知道话题---farming.2).涉及到提高产量从而解决世界饥荒问题，从而引出本节课的中心话题--伟大人物袁隆平。

2. 跟读与限时阅读完成导学案练习贯彻目的与困难策略，指导学生根据不同的阅读目的，在阅读的不同阶段，灵活使用各种阅读策略，捕捉文章主要信息，理解作者的写作意图，突破本文的教学重点与难点。

采用整体语言教学法和任务型语言教学法。

1)、通过限时阅读训练，引导学生如何利用略读(skimming)的方法把握文章的大意，侧重培养快速阅读理解能力和文章中心把握能力。

2)、精读各个段落语段，侧重培养快速捕捉文章重要细节的能力和猜测生词的能力，学会欣赏文章中的优美句子。

3：阅读过程--浅层次阅读。

(Reading I)1). 其中关于人物的基本信息中，通过设计了一个信息表格的浅层次阅读练习，对文中人物有了初步了解。

2). 关于他的梦想，书本上描写得非常生动，我让班里有艺术特长的学生画了一幅漫画，利用画面反映课文第四段所描述的内容，同时用第一人称配了声音效果。

4. 阅读过程--深层次阅读。

(Reading II)在处理了一些简单信息之后，阅读人物最重要的是要读出人物不同于其他人的成就以及值得学生学习的一些可贵品质。

人教版高中英语必修四Unit2 Working the land1 struggle [ˈstrʌgl]vi.搏斗；奋斗；努力；争取n.打斗；竞争；奋斗【例句】They had to struggle against/with all kinds of difficulties.他们必须和各种各样的困难作斗争。

After 5 years’ of struggle,people in Wenchuan are living a normal life now.经过五年的努力，现在汶川人民的生活步入了正轨。

【搭配】struggle against/with与……斗争struggle for 为争取……而斗争struggle to do 努力去做struggle to one’s feet 挣扎着站起来 a life-and-death struggle生死搏斗【辨析】battle, war, campaign, struggle, fight这些名词均有“战斗，战争”之意。

•battle：侧重指战争中的一次较全面、时间较长的战斗，也指陆军或海军在某一特定地区进行的战斗，或个人之间的争斗。

•war：是战争的总称，一般指包括多个战役的大规模战争。

•campaign：通常指在一场大的战争中在某一地区进行的一连串有既定目的的军事行动。

也可作引申用。

•struggle：指激烈或时间持续长的战斗或奋力斗争。

•fight：最普通用词，含义广，指战斗、斗争或打斗。

2 hunger [ˈhʌŋgə(r)] n.饿，饥饿；欲望vt.& vi.（使）饥饿【例句】His hunger for knowledge drove him to the library.他对知识的强烈愿望驱使他上图书馆。

These students hunger for new knowledge and ideas.这些学生渴望学到新知识，获得新思想。

人教版高中英语必修四Unit 2课文翻译Unit 2 Working the land―Reading―A PIONEER FOR ALL PEOPLE造福全人类的先驱者Although he is one of China's most famous scientists, Yuan Longping considers himself a farmer, for he works the land to do his research. 尽管是中国最著名的科学家之一，袁隆平仍然认为自己是个农民，因为他在田里耕作，进行科学研究。

Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five decades. 的确，他被太阳晒得黝黑的脸庞和和手臂，以及他那瘦削而又结实的身躯，就跟其他千百万中国农民一样，过去50年来，他一直在努力帮助他们。

Dr Yuan Longping grows what is called super hybrid rice. 袁博士种植的是被称为“超级杂交水稻的”的稻种。

In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output. 1974年，他成为世界上第一位种植高产水稻的农业先锋。

This special strain of rice makes it possible to produce one-third more of the crop in the same fields. 这种特殊的稻种使得同样的田地多收获三分之一的产量。

1. 学习短语的基本含义和用法。

2. 灵活运用所学的短语，学会用短语造句。

1. 重点：短语reduce…to, be satisfied with…, lead to, build up的用法。

2. 难点：lead有关的短语和build up相关的用法。

【短语学习】1. reduce...to...把……减少到……reduce…to…表示“把……减少到……”，to后所跟的是减少后的结果。

be reduced to… 为被动语态，表示“被减少到……”。

The job losses will reduce the total workforce to 7,000.职位减少后，在职工人总数将减至7,000人。

reduce...by... 减少了……，侧重于减少的量或者幅度。

be reduced to 沦落为……;陷入某种状态;被降职到……Eating just one carrot a day can reduce the possibility of getting this disease by 40%.每天吃一根胡萝卜可以将患这种病的几率减少40%。

All the buildings in the town have been reduced to ruins after the earthquake.地震后城里所有的建筑都成了废墟。

The number of students in our school has been reduced to 2,000.我们学校学生的数目减少到了2000。

The government is trying to __________ pollution to an even lower level so that we can have a better environment.A. reduceB. removeC. collectD. warn答案：A思路分析：句意：政府正在努力把污染减少到一个更低的水平,以便我们能够有一个更好的环境。