高中英语人教版必修4 Unit2 Working the land Period4 Using Language要点讲解课课件（96张）

课件96张PPT。Unit 2 Working the land
Period 4 Using Language
要点讲解课Ⅰ. 根据所给词性及汉语提示写出下列单词
1. ________ n. 营养；滋养；食物
2. _________ vt. 画底线标出；强调
3. _________ n. 总结；摘要；概要
4. ________ n. 评论；议论
vi. & vt. 表达意见；作出评论nutritionunderlinesummarycomment5. _______ vt. 使迷惑；使为难→confusing adj. 令人迷
惑的→confused adj. 感到迷惑的→confusion n. 迷惑
6. ______ vt. 遗憾；惋惜 n. 遗憾；懊悔
→regretful adj. 后悔的
7. ________ adj. 化学的；关于化学的
→chemistry n. 化学confuseregretchemical8. __________ n. 生产；制造→produce v. 生产
9. discover vt. 发现→_________ n. 发现；发觉
10. ______ vt. 减少；减缩→reduction n. 减少productiondiscoveryreduceⅡ. 补全下列短语
1. _____ up 逐渐增强；建立；开发
2. lead __ 导致；造成(后果)
3. _____ on 集中(注意力、精力等)于
4. keep. . . free _______ 使……免受(影响、伤害等)；
使……不含(有害物)buildtofocusfrom/of5. _____ damage to 对……造成损害
6. __ addition 此外；另外causein阅读文章Chemical or Organic Farming?回答下列问题
1. What does “organic farming” introduced in the
passage refer to?
A. All farming concerning crop-planting.
B. Crops growing with natural fertilizers instead of
chemical ones.
C. Crops growing with chemical fertilizers.
D. Crops growing in poor soil. 2. Organic farmers prefer using______.
A. chemical fertilizers
B. natural and chemical fertilizers
C. natural fertilizers
D. some kind of chemical fertilizers3. Which of the following is TRUE?
A. All farming is organic farming.
B. Some organic farmers prefer planting grass between
crops to make full use of the field.
C. Farmers often grow the same crops year after year.
In this way, they can have a good harvest.
D. Using natural waste from animals can help reduce
disease in crops and help them grow strong and healthy. 4. The purpose of this passage is to_______.
A. tell us the story of organic farmers
B. introduce the organic farming
C. argue that organic farming should be encouraged
D. object to the traditional farming1. confuse vt. 使迷惑；使为难
※It is important to explain this again or we will confuse the students.
再次解释这点是重要的，否则我们将会使学生困惑。
※Don’t confuse the means with the ends.
不要把手段和目的混淆起来。※They were confused about the present situation.
他们对当前的形势感到困惑。【自我归纳】
①confuse A ____ B 把A和B相混淆
②be confused _____ sth. 对……感到困惑withabout【知识延伸】
confused adj. (感到)困惑的，烦恼的 (修饰说明人)
confusing adj. 令人困惑的 (修饰说明物)
confusion n. 混乱；困惑※The confused look on her face suggested she was confused about the confusing instructions.
她困惑的表情表明她对那些令人迷惑的说明感到困惑。【活学活用】
1. ①They ________ me by their conflicting advice.
他们的建议相互矛盾，把我弄糊涂了。
②Many people ___ ________ _____ the new ways of
measuring temperature.
许多人搞不清测量温度的新方法。confusedareconfusedabout③Most students are ________ about the _________
problem. 大部分学生对这个令人困惑的问题感到困
惑。
④I always _______ you ____ your sister—you look so
alike.
我总是把你和你姐弄混——你们看起来太像了。confusedconfusingconfusewith2. regret vt. & n. 遗憾；惋惜；懊悔
※I regret to tell you I can not accept your suggestion.
我遗憾地告诉你我不能接受你的建议。
※I regretted selling the house. 我后悔卖了房子。
※Much to my regret, I have an important appointment with Mr Sheila.
很遗憾，我和席勒先生有个重要的约会。※We announce with regret the death of the mayor.
我们遗憾地宣布市长去世了。【自我归纳】
①______________很遗憾要做某事(还没有做)
②_______________后悔做过某事(已经做了)
③___________________
令某人感到(极为)遗憾的是;很遗憾
④__________遗憾地regret to do sth.regret doing sth.(much)to one’s regretwith regret【活学活用】
2. ①I ______ __ ___ that I am unable to help you.
很抱歉,我爱莫能助。
②She ________ ___ ______ _______ the computer hard.
她后悔没有努力学习计算机。
③______ __ ___ ______, I must leave now.
很抱歉，我现在得走了。regrettosayregrettednothavingstudiedMuchtomyregret④He told me ____ ______ that he could not come to
the party.
他很抱歉地对我说他不能来参加这个聚会了。withregret3. build up 逐渐增强；建立；开发
品读下列例句，写出build up在句中的意义。
①These chemicals in the food supply build up in
people’s bodies over time. ( )
②The village has been built up since I lived here. ( )
③I help our manager build up our overseas trade.
( )逐渐增强建立开发【易混辨析】【活学活用】
3. 选词填空(build up/set up/put up)。
①I’m glad to see that your vocabulary is gradually
__________.
②A fund will be ______for the dead men’s families.
③They ______tents on the fringes of the woods. building upset upput up④My stress _____ ___ as time went by.
随着时间的推移，我的压力越来越大。
⑤We _____ ___ our business after ten years’ struggle.
经过十年的拼搏，我们建立了自己的公司。builtupbuiltup4. lead to 导致；造成(后果)
lead to除“导致，造成(后果)”之外，还有“通向”的意
思。
①Many of these chemicals can lead to cancer or other
illnesses. ( )
②All the roads leading to the city had been mined.
( )导致，造成通向【知识延伸】
①同义短语：result in, contribute to, bring about
②lead sb. to someplace 带领某人到某地
lead sb. in doing sth. 率领某人做某事
lead one’s /the way 带路，领路【活学活用】
4. 一句多译。
①努力工作会铸就成功。
a. ______________________________
b. _______________________________Hard-working can lead to success.Hard-working can result in success.②All the roads leading to the airport have been closed by the police.
译：_________________________________所有通往机场的路都被警察封闭了。5. focus on 集中(注意力、精力等)于
※They focus on keeping their soil rich and free of disease.
他们主要是想保持土壤肥沃并且免受病害。
※We should focus our attention on our study.
我们应该把注意力集中到学习上。※The Beijing V-Day parade has become the focus of media attention.
北京胜利日阅兵已成为媒体关注的焦点。【自我归纳】
①focus vt. _________ n. ___________
②focus one’s attention/mind/energy/eyes on/upon
__________________________________集中,聚焦焦点,中心点使某人的注意力/心思/精力/眼睛专注于【知识延伸】
表示“专心致志于”的短语还有：concentrate on,fix. . . on,be absorbed in等。【活学活用】
5. ①Our policy is to _____ ___ __________ these areas.
我们的政策是着眼于把这些地区发展起来。
②Please _____ _____ ________ ___ the main problems.
请把你的注意力集中在主要问题上。focusondevelopingfocusyourattentionon翻译。
③The discussion focuses on three main problems.
_____________________________
④People from the whole country focus their attention on the missing girl.
_____________________________此次讨论集中在三个主要问题。全国人都关注那个失踪的女孩。6. reduce vt. 减少；减缩
※A healthy soil reduces disease and helps crops grow strong and healthy.
健康的土壤可以减少病害，并且帮助农作物茁壮成长。※Chairman Xi announced that China would reduce the number of its troops by 300,000.
习主席宣布中国将裁军30万。
※The price of that type of color TV set has reduced to 1,000 yuan.
那种型号的彩电的价格已经下降到了一千元。【自我归纳】
①reduce. . . ___. . . 减少了，表示减少的程度或幅度
②reduce. . . __. . . 减少到，表示减少的最终结果byto【知识延伸】
近义词：decrease，bring down
反义词：rise，increase 【活学活用】
6. ①As a result, costs will ___ _______ ___ as much as
90%.
因此，成本将会降低90%之多。
②I will buy the coat if it __ _______ __ 20 yuan.
如果降到20元，我就买那件衣服。bereducedbyisreducedto用适当的介词填空。
③The price reduced from 30 yuan __ 10 yuan.
④As a result,costs will be reduced ___ as much as 50%. toby【补偿训练】
①The workforce has already been reduced by half.
译:_______________________
②The number of the students in our school increased
by 30% this year.
译:___________________________________劳动力已经减少了一半。今年我们学校学生的人数增加了30%。【备选要点】
1. in need of 需要
品读下列例句，体会in need of在句中的意义及用法。
①It is nice to help people in need of help.
帮助_____________太好了。
②Our school is in need of some teachers.
我们学校_____________。需要帮助的人需要一些老师【知识延伸】
in honor of 对……表示敬意
in memory of 为了纪念……
in place of 代替
in search of 寻找
in face of 面对
in charge of 负责，掌管，管理
in favor of 支持，赞成【活学活用】
1. 用适当的介词短语填空。
①Deeds are better than words when people are _______
__ help.
②A reception was held __________the new director.
③They didn’t give up ________difficulties.
④Oh, good, I am very much _________your proposal. in needofin honor ofin face ofin favor of⑤They all went __________ the buried treasure.
⑥We can use plastics _________ wood or metal.
⑦(2016·马鞍山高一检测)Although he doesn’t have
enough money, he’s always helping those who are
__ ____ __help.
尽管他没有多少钱，他总是帮助那些需要帮助的人。in search ofin place ofin need of2. keep . . . free from/of使……免受(影响、伤害等)；使……不含(有害物)
品读下列例句，体会keep. . . free from/of在句中的意义及用法。①This also keeps the air, soil, water and crops free
from chemicals.
这还让空气、土壤、水以及农作物_______________
_____。
②You’d better keep this area free of air pollution.
你们最好让这个地区_____________。不受化学物质的污染免受空气污染【知识延伸】
be free from/of 无……的
keep sb. from doing sth. 阻止某人做某事
prevent/stop sb. (from) doing sth. 阻止某人做某事【活学活用】
2. ①Nowadays we try to _____ ____ _____ ____ __ town
and factory waste.
现在我们努力使河流不受城镇和工厂废物的污染。keepourriversfreeof单句改错。
②The heavy rain can’t keep me going out.
______________________在me和going之间加from【补偿训练】
①He wants to keep himself free _______some of his
responsibilities.
②Her illness kept her _____ continuing her work.
③We shouldn’t keep anything _____ her; that is to say,
we should tell her everything. from/offromfrom3. comment n. 评论；议论
vi. & vt. 表达意见；作出评论
※Swap summaries with your partner and give each other comments.
与你的搭档交换摘要，并相互作出评论。
※The teacher made comments on our compositions.
老师就我们的作文作了讲评。※“No comment,” Andersen said on the report.
“无可奉告”安德森就这一报道说。
※The king refuses to comment on the election results.
国王拒绝评论选举的结果。【自我归纳】
①make a comment/comments _________
②No comment. ___________
③comment on/upon _____________作出评论无可奉告。对……作评论【活学活用】
3. ①He _____ ___ _________ on our proposal.
他对我们的建议没有作评论。
②The minister refused to ________ ___ the rumours
of his resignation.
部长拒绝就他辞职一事的传闻发表评论。madenocommentscommenton一句多译。
③祖母总是喜欢就孙女的裙子作评价。
a. The grandmother always likes _______ _________ ___
her granddaughter’s dress.
b. The grandmother always likes ___________ ___ her
granddaughter’s dress. makingcommentsoncommentingon4. They feel that this makes the soil in their fields richer in minerals and so more fertile.
他们觉得这可以让地里的土壤更富含矿物质，从而变得更肥沃。【句型剖析】
此句为主从复合句。句中“makes the soil in their fields
richer in minerals and so more fertile”为make +复合宾
语。其中“________________________________”为宾
语补足语。richer in minerals and so more fertile①They have made their car ready to start.
译：_____________________
②The news made us very happy.
译：_______________________他们已使车准备启动。这消息让我们高兴万分。【知识延伸】
make sb. do sth. (迫) 使某人做某事
make sb. /sth. +形容词/副词 使……处于某种状态
make sb. /sth. +名词 使……成为……、让……当……
make sb. /sth. done 使……被做(宾语和宾语补足语之间是被动关系)※We made him captain of our football team.
我们推选他为我们足球队的队长。
※Our teacher makes us feel more confident.
老师使得我们感到更自信了。※He couldn’t make himself heard above the noise of the traffic.
在交通嘈杂声中他无法使自己的声音提高到让别人听到。【活学活用】
4. ①We all love Miss Yang. She always ______ ___
_______ ____ ____ __________.
我们都喜欢杨老师。她总是让她的历史课很有趣。
②Eating too much _____ ____ __.
吃得太多使他生病了。makesherhistoryclassveryinterestingmadehimill③My father _____ ___ _____ till eleven last night.
昨晚父亲让我学习到11点钟。
④Can you _____ _______ __________ in English？
你能用英语把意思表达清楚吗？mademestudymakeyourselfunderstood用所给单词的适当形式填空。
⑤Our English teacher often makes us _____ (retell)
the tests.
⑥Internet makes our life easy and __________ (convenience). retellconvenient单句改错。
⑦It’s too noisy. I can’t make my voice hear.
_______________
⑧The boy was made work twelve hours a day.
_____________将hear改为heard在made后加to【课堂小结】
Ⅰ. 词汇串记
One day when skimming through a newspaper, I read a comment on Chinese farming. I underlined some important words. I also focused on some discoveries about Chinese agriculture. I made a summary and began to build up a new farming method, through which I planted a grain of rich nutrition. It can keep free from bacteria and pests. I also enriched minerals in the soil while reducing chemical materials. Several years later, my grain got high production. Ⅱ. 句式背诵
1. This makes the soil in their fields richer in minerals.
这可以让他们地里的土壤更富含矿物质。
2. It’s better to use organic farming than chemical farming.
有机耕作比化学耕作要好。3. It’s a great pity that farmers can’t make their crops grow faster.
很遗憾农民们不能让他们的庄稼长得更快。写一份海报
海报属于应用文的范畴，是一种用于告知广大群众各种信息的宣传性文体，其宣传内容包括影视作品、体育赛事、学术报告等。海报往往以通告的形式张贴在公共场所。它由标题、正文、出海报的单位以及日期构成。海报形式灵活，语言活泼。 你吃过一些有机蔬菜吗？它们绿色健康。请光临品尝。
请就这一话题写一份海报，劝说大家购买绿色蔬菜。
海报应包含以下内容：★题目:来这儿买最好的蔬菜！
★理由:价格合理; 新鲜; 富含维生素; 安全; 远离化肥; 在远离工业区的地方种植。
★结论:有机种植方式培育的绿色食品, 有益于身体健康。
★注意：词数100个左右。Step 1 审题谋篇Step 2 遣词造句
1. 来这儿买最好的蔬菜！
一句多译：
①_________________________
②__________________________________Buy the best vegetables here!Come here and buy the best vegetables!2. 你吃过一些有机蔬菜吗？
①有机蔬菜 ________________
②用完成时态完成此句：
_________________________________organic vegetablesHave you had any organic vegetables?3. 它们绿色健康。
翻译此句：
________________________They are healthy and green.4. 请光临品尝。
①品尝_______________
②把此句翻译成含and的并列句：
______________________________taste/have a tastePlease come here and have a taste.5. 有机蔬菜在销售中。
①在销售中_________
②根据示例仿写此句：
示例：Their products are on sale.
仿写：___________________________be on saleOrganic vegetables are on sale.6. 理由: 价格合理; 新鲜; 富含维生素; 安全; 远离化肥;
在远离工业区的地方种植。
完成此句：Good reasons to buy: __________ price;
_____; rich __________; safe; ______fertilizer; grow
away ___________________. reasonablefreshin vitaminsfree offrom industrial areas7. 这儿的绿色蔬菜靠有机种植方式培育，当然有益于
身体健康。
①通过有机种植方式 _________________________
②保持健康 ___________by organic farming methodskeep healthy③一句多译：
a. 用复合句翻译此句：___________________________
_______________________________________________
______________________
b. 用简单句翻译此句：_______________________
_______________________________________________
____________Because the vegetables here aregrown by organic farming methods, they of course canhelp you to keep healthy.Grown by organic farmingmethods, the vegetables here of course can help you tokeep healthy.Step 3 润色组篇
Buy the Best Vegetables Here!
Have you had any organic vegetables? The vegetables here of course can help you to keep healthy. Good reasons to buy:
★reasonable price
★fresh
★rich in vitamins
★safe
★free of fertilizer
★grow away from industrial areas Grown by organic farming methods, the vegetables here have all the advantages of “green food”, which of course can help you to keep healthy. 【策略点拨】
Ⅰ. 策略指导
1. 明确海报类型
明确你要写的海报是招聘广告、活动宣传还是人物介绍，准确表达其应有的内容和特点。2. 明确海报的语言特点
海报不同于其他类型的书面表达，它属于广告，要求用最短的文字包含最多的信息，以起到醒目的效果。因此海报多用省略句、缩略语及类似的语言，应注意这些语言特点。3. 突出重要信息
为进一步增强海报的醒目性，一些重要信息还常常被分行突出，并且在其前面用粗点、星号等特殊符号表示强调。Ⅱ. 常用句型
1. Under the auspices of various companies,a football match will be held between Computer Dept. and Chinese Dept.
在多家公司的赞助下，将举行一次计算机系和中文系的足球对抗赛。2. Please contact organizer for tickets.
请联系组织者买票。
3. Tickets are limited for 100. 限票100张。
4. Basketball fans should be quick.
篮球迷们快点行动起来。5. A school bus will be made available.
将提供校车。
6. We are expected to gather at our school gate, film will be shown on Wan Da Cinema at 7 pm.
我们将在学校门口集合，电影在万达影院晚上7点上映。7. The time is from 3 pm to 5 pm.
时间从下午3点到5点。
8. We hope to raise money to help poor children.
我们希望筹钱来帮助贫穷的孩子。
9. Sponsored by The Students’ Union.
由学生会组织发起的。10. Exciting Soccer Final Between 2 Powers. Don’t miss the opportunity！
两个强队之间的精彩足球决赛。莫失良机！