高中英语人教版 (2019)选择性必修 第一册Unit 5 Working the Land教学演示ppt课件

这是一份高中英语人教版 (2019)选择性必修 第一册Unit 5 Working the Land教学演示ppt课件，共27页。PPT课件主要包含了杂交水稻，平常的，不懈的，国内的，内心深处，含盐的，hybridrice，devoted，shortage，tackle等内容，欢迎下载使用。
1.选修一Unit 5文章句子，出声朗读，能够做到本单元新单词、旧单词在语境里英译汉。2. 朗读多遍到熟练，做到脱离语境的情况下，本单元新单词英译汉。3.本单元新单词做到汉译英。本单元词组掌握，练习用这些词组造句。4.本单元将来进行时语法点掌握。5.熟读课文材料，掌握英语句法结构，然后练习与本单元相关的作文一篇，写出语法基本正确的，逻辑合理英语作文。
hybrid/ˈhaɪbrɪd/devte/dɪˈvəʊt/devte ... t/dɪˈvəʊt tə/shrtage /ˈʃɔ:tɪdʒ/tackle/ˈtækl/crisis/ˈkraɪsɪs/bst/bu:st/yield/ji:ld/cnvince /kənˈvɪns/
characteristic /ˌkærəktəˈrɪstɪk/attain/əˈteɪn/cnventinal/kənˈvenʃənl/pllinate /ˈpɒləneɪt/assumptin/əˈsʌmpʃn/intense /ɪnˈtens/vercme/ˌəʊvəˈkʌm/expand /ɪkˈspænd/utput/ˈaʊtpʊt/
estimate/ˈestɪmət/dmestic/dəˈmestɪk/cnsumptin/kənˈsʌmpʃn/cmprise/kəmˈpraɪz/be cmprised f/bi kəmˈpraɪzd əv/generate/ˈdʒenəreɪt/strain/streɪn/leisure/ˈleʒə(r)/deep dwn/di:p daʊn/
sil /sɔɪl/celebrity/səˈlebrəti/envisin/ɪnˈvɪʒn/srghum/ˈsɔ:gəm/brm/bru:m/grain/greɪn/visin/ˈvɪʒn/reality/riˈæləti/salty/ˈsɔ:lti/
urban/ˈɜ:bən/bmb/bɒm/tunnel/ˈtʌnl/extensin /ɪkˈstenʃn/chemical/ˈkemɪkl/wheat/wi:t/flavur/ˈfleɪvə(r)/
fertilizer/ˈfɜ:təlaɪzə(r)/nutritinal /njʊ'trɪʃənl/nutritius/njuˈtrɪʃəs/nutritin/njuˈtrɪʃn/alleviate/əˈli:vieɪt/pverty/ˈpɒvəti/rganic/ɔ:ˈgænɪk/pesticide/ˈpestɪsaɪd/
widespread/ˈwaɪdspred/bacterium/bæk'tɪərɪəm/in turn/ɪn tɜ:n/digest/daɪˈdʒest/essential/ɪˈsenʃl/mineral/ˈmɪnərəl/alternative/ɔ:lˈtɜ:nətɪv/
grcery/ˈgrəʊsəri/instance/ˈɪnstəns/fr instance/fə(r) ˈɪnstəns/depth/depθ/rt/ru:t/entirely/ɪnˈtaɪəli/aspect/ˈæspekt/
Part 1 出声朗读文章，掌握新旧单词和句法结构。
朗读并熟读此单元文章，测试一下是否掌握本单元新旧单词。
Yuan Lngping is knwn as the father f hybridrice（ ）. He has devted （ ）his life t Chinese farmers.When he was yung, farmers ften had a serius shrtage（ ） f fd. T tackle（ ） this crisis（ ） ,he chse t study agriculture at Suthwest Agricultural Cllege. Farmers needed t bst （ ）yields in the fields they had. It was a challenging questin. Yuan was cnvinced （ ）that the answer culd be fund in the creatin f hybrid rice.
One characteristic（ ） f hybrids is that they usually attain（ ） a higher yield than cnventinal（ ） crps. Hwever, whether it was pssible t develp a hybrid f self-pllinating（ ） plants such as rice was a matter f great debate. The cmmn assumptin （ ）was that it culd nt be dne. Thrugh intense（ ） effrt, Yuan vercame（ ） enrmus technical difficulties t develp the first hybrid rice. This hybrid enabled farmers t expand （ ）their utput（ ） greatly.
Tday, it is estimated（ ） that abut 60 percent f dmestic （ ）rice cnsumptin（ ） in China is cmprised f （ ）crps generated （ ）frm Yuan’s hybrid strains（ ）. One might think Yuan wuld retire t a life f leisure（ ）. Hwever, this is far frm the case. Deep dwn（ ）, Yuan is still very much a farmer at heart. As a man f the sil（ ）, he cares little fr celebrity（ ） r mney.
What impresses peple mst abut Yuan Lngping is his nging ability t fulfill his dreams. Lng ag, he envisined（ ） rice plants as tall as srghum（ ）, with each ear f rice as big as a brm（ ）, and each grain（ ） f rice as huge as a peanut. His latest visin （ ）fr “seawater rice” has als becme a reality（ ）, and ptentially pened up nearly ne millin square kilmetres f salty（ ） land in China fr rice prductin.
Yuan Lngping is knwn as the father f _____________（杂交水稻）. He has _____________ （奉献）his life t Chinese farmers.When he was yung, farmers ften had a serius _____________（短缺） f fd. T _____________（解决） this _____________（危机）, he chse t study agriculture at Suthwest Agricultural Cllege. Farmers needed t _____________（促进） yields in the fields they had. It was a challenging questin. Yuan was _____________（确信的） that the answer culd be fund in the creatin f hybrid rice.
One _____________ （特征）f hybrids is that they usually _____________（获得） a higher yield than _____________（常规的） crps. Hwever, whether it was pssible t develp a hybrid f self-_____________ （授粉）plants such as rice was a matter f great debate. The cmmn _____________（假设）was that it culd nt be dne. Thrugh _____________（激烈的） effrt, Yuan _____________（战胜） enrmus technical difficulties t develp the first hybrid rice. This hybrid enabled farmers t _____________ （扩展）their _____________（产量）greatly.
characteristic
Tday, it is _____________（预估） that abut 60 percent f _____________（国内的） rice _____________（消费） in China is _____________（包含）crps _____________ （产生）frm Yuan’s hybrid _____________（品种）. One might think Yuan wuld retire t a life f _____________（休闲）. Hwever, this is far frm the case. _____________（内心深处）, Yuan is still very much a farmer at heart. As a man f the_____________（土壤）, he cares little fr _____________（名声） r mney.
What impresses peple mst abut Yuan Lngping is his nging ability t fulfill his dreams. Lng ag, he _____________（想象）rice plants as tall as _____________（高粱）, with each ear f rice as big as a _____________（扫把）, and each _____________（谷粒） f rice as huge as a peanut. His latest _____________（想象） fr “seawater rice” has als becme a _____________（现实）, and ptentially pened up nearly ne millin square kilmetres f _____________（含盐的） land in China fr rice prductin.
Part 2 出声朗读文章，掌握新旧单词和句法结构。
Part 2 出声朗读文章，掌握新旧单词和句法结构。
Chemical pesticides（ ） and artificial fertilisers（ ） have been in widespread（ ） use in farming. Pesticides can damage the land by killing nt nly harmful bacteria（ ） and insects, but als helpful nes. In additin, these chemicals affects the crps n the land and, in turn（ ）, the animals and humans wh digest （ ）them. As fr chemical fertilisers, crps grwn with them usually grw t fast t be rich in nutritin（ ）. But inside there is usually mre water than essential（ ） minerals（ ）.
As an alternative（ ）, sme farmers have switched t rganic farming and many custmers have entirely（ ） turned t rganic fd at the lcal grcery（ ）. Fr instance, rganic farmers als plant diverse crps that use different depths （ ）f sil t help keep it rich. Fr example, peanuts grw n the grund’s surface, but many ther vegetables put dwn deep rts（ ）.
Part 2 汉译英口头说出来。
Chemical _____________（杀虫剂） and artificial fertilisers have been in _____________（广泛使用的） use in farming. Pesticides can damage the land by killing nt nly harmful _____________（细菌） and insects, but als helpful nes. In additin, these chemicals affects the crps n the land and, _____________（反过来）, the animals and humans wh _____________ （消化）them. As fr chemical fertilisers, crps grwn with them usually grw t fast t be rich in _____________（营养）. But inside there is usually mre water than _____________（极其重要的） _____________（矿物质）.
As an _____________（选项）, sme farmers have switched t rganic farming and many custmers have _____________（完全） turned t rganic fd at the lcal _____________（杂货店）. _____________（比如）, rganic farmers als plant diverse crps that use different _____________（深度） f sil t help keep it rich. Fr example, peanuts grw n the grund’s surface, but many ther vegetables put dwn deep _____________（根）.
alternative
Fr instance
In mdern urban（ ）areas, the demand fr high-quality wheat（ ） with rich flavr（ ） and nutritinal（ ）value is increasing. T meet this need, farmers are using advanced chemical fertilisers（ ） t imprve sil quality. Agricultural extensin（ ） prgrams educate them abut sustainable practices, like undergrund tunnel（ ）farming, which prtects crps frm extreme weather. These methds nt nly enhance nutritin （ ）but als help alleviate（ ）pverty（ ） by bsting incme. Hwever, the aspect（ ） f envirnmental safety must be balanced. Excessive chemicals（ ） culd harm the land like a bmb（ ）, causing lng-term damage.
In mdern _____________（城市的） areas, the demand fr high-quality _____________（小麦） with rich _____________（味道） and _____________（有营养的） value is increasing. T meet this need, farmers are using advanced chemical _____________（肥料） t imprve sil quality. Agricultural _____________（扩建） prgrams educate them abut sustainable practices, like undergrund _____________（隧道） farming, which prtects crps frm extreme weather. These methds nt nly enhance _____________（营养） but als help _____________（减轻） _____________（贫困） by bsting incme. Hwever, the _____________ （方面）f envirnmental safety must be balanced. Excessive _____________ （化学品）culd harm the land like a _____________（炸弹）, causing lng-term damage.
01wrk the land 耕种土地02cnduct research 进行研究03fulfil ne’s dream 实现你的梦想04care fr 关心,照顾;喜欢05devte ne’s life t 献身于,一生致力于06pursue a career 追求事业07a shrtage f 短缺,缺少,缺乏08tackle a crisis 解决危机09wrk as 担任10bst yields in the fields 提高农田产量
11at the time 在那时,那时候12It was pssible t d sth. 有可能做某事13thrugh intense effrt 通过紧张的努力14be used fr 用于;被用做15enable sb. t d sth. 使某人能做某事16expand the utput greatly 大大增加产量17it is estimated that 估计,有人估计,据估计18be cmprised f 由…组成19allw sb. t d sth. 允许某人做某事20depend n 取决于;依赖;依靠
21invaluable cntributins 宝贵的贡献22given that 考虑到,鉴于23retire t a life f leisure 退休享受闲适的生活24far frm the case 事实远非如此25deep dwn 在内心深处26at heart 本质上,内心里27as a man f the sil 作为一个土生土长的人28What impresses sb. mst abut … is …给人印象最深的是…29succeed in ding 成功30at hme and abrad 国内外
31becme a reality 成为现实32pen up 开辟33despite his advanced years 尽管年事已高34still yung at heart 内心仍然年轻35dream up 凭空想出36end with 以…结束37ver the years 多年以来(常与现在完成时连用)38cut dwn 削减;砍倒;杀死;删节;胜过39apart frm 除…之外;且不说;并且40ther than 除了;不同于
41deal with 处理;涉及;做生意42cmmit neself t 致力于;使自己承担…43take n 承担;呈现;具有;流行;接纳;雇用;穿上44a variety f 各种各样的…45free-time activities 业余活动46reduce the intense stress frm studying 减少学习的巨大压力47pay less attentin t 不太注意48try ne’s best t d sth.尽最大努力做某事49turn int 变成;进入50prtect…frm 使免受,保护
51up t 多达52meet the increasing cnsumptin demands 满足日益增长的消费需求53adapt t 适应,适合,改编54realize ne’s dream f (ding) sth. 实现某人(做)某事的梦想55cmplain abut 抱怨56retire frm 从…离职/退休57nw that 既然;由于58live a healthy life 过健康的生活59make up ne’s mind t d sth. 下定决心做某事60be devted t 专心于/致力于…的;献身…的
61think abut 考虑62at the start f 在…开始的时候63listen ut fr 留心听64There is strng evidence t suggest that 有充分的证据表明65raise awareness f 提高…意识66I’d rather 我宁愿67withut a dubt 无疑地68in my eyes 在我眼中69It’s a pity that 很遗憾…70frm my pint f view 依我之见
71in my pinin 依我看来,在我看来72in widespread use 在广泛使用73since the middle f the 20th century 自20世纪中叶以来74in additin 此外75in turn 反过来;转而;轮流,依次76in fact 事实上 77cause damage t 对…造成损坏,带来损害78as fr 至于79be rich in 富有…的80switch / turn t 改/转向
81fcus n ding 专注于 82keep … free f 使…免于…83fr instance 例如84prefer t d sth. 宁愿做某事;85keep sb. frm ding 阻止某人做某事86nwhere near 远远不87meet that need 满足这种需求88cme up with 提出;想出;赶上89at least 至少90in a lgical rder 按逻辑顺序
91persuade sb. t d sth. 劝说某人做某事92give advice n 就…提建议93carry ut 执行,实行;贯彻;实现;完成94quit a jb 辞去工作,辞职95as…as pssible 尽可能…地
主语从句是指在复合句中充当主语的从句，它通常由连接词引导，表达一个完整的意思，在句中相当于一个名词的作用。主语从句的位置可位于句首，也可因句子平衡需要用it作形式主语，将真正的主语从句置于句末。
一、引导主语从句的连接词分类1. 从属连词（只起连接作用，不充当句子成分） - that：无实际意义，仅连接主从句（不能省略）。 - whether：意为“是否”，不能用if代替（if不能引导主语从句）。2. 连接代词（既起连接作用，又在从句中充当主语、宾语、表语等） - wh, whm, whse, what, which, whever, whatever, whichever等。3. 连接副词（既起连接作用，又在从句中充当状语） - when, where, why, hw, whenever, wherever, hwever等。
二、主语从句的两种结构形式
1. 主语从句位于句首（直接作主语）- that引导： That she will cme t the party is certain.（她会来参加派对是肯定的。） （that无意义，仅连接从句，从句“she will cme t the party”作主语）- whether引导： Whether we can finish the task n time depends n ur effrt.（我们能否按时完成任务取决于我们的努力。） （whether表“是否”，从句作主语）
- 连接代词引导： What he said at the meeting surprised everyne.（他在会上说的话让所有人都很惊讶。） （what在从句中作宾语，指代“说的内容”，整个从句作主语） 连接副词引导： Hw the accident happened is still a mystery.（事故是如何发生的仍然是个谜。） （hw在从句中作方式状语，从句作主语）
2. it作形式主语，主语从句位于句末（避免头重脚轻）当主语从句较长时，常用it作形式主语，将真正的主语从句放在句末，使句子结构更平衡。常见句型： - It + be + 形容词 + 主语从句（如certain, clear, imprtant, necessary等） - It + be + 名词短语 + 主语从句（如a fact, a pity, a shame, n wnder等） - It + be + 过去分词 + 主语从句（如said, reprted, believed, knwn等）
例句： - It is clear that he has made a mistake.（很明显，他犯了一个错误。） （真正主语是that引导的从句，it为形式主语） - It is a pity whether she can’t attend the cncert.（她不能参加音乐会真是遗憾。） - It is reprted that the number f wild tigers is increasing.（据报道，野生老虎的数量在增加。）
1. that引导主语从句时，即使位于句末（用it作形式主语），that也不能省略。 误：It is true he is wrng. 正：It is true that he is wrng.（他错了是真的。）2. whether与if的区别：主语从句中只能用whether，不能用if。 误：It is unknwn if he will cme. 正：It is unknwn whether he will cme.（他是否会来还不清楚。）3. 连接代词/副词在从句中需充当成分，不可省略。 如：Wh will be elected president is still uncertain.（谁会当选总统还不确定。） （wh在从句中作主语，不可省略）
[即学即练1]——用whether, that, whever填空①___________she became an artist may have been due t her father's influence.②___________ we will hld a party in the pen air tmrrw depends n the weather.③Every year, ___________ makes the mst beautiful kite will win a prize in the Kite Festival.
[即学即练2]——完成句子①很可惜你不能来参加我的生日聚会。________________that yu can't attend my birthday party.②有人建议这位老人到乡村休息一下。________________that the ld man shuld g t the cuntryside t have a rest.③在我看来你好像不赞成这个计划。________________that yu disagree with the plan.
It’s a pity
It’s suggested
It seems that
[即学即练3]——单句语法填空①When we will set ff ________(be) still under discussin.②When and where the meeting will be held ___________ (have) nt been decided.
1．It is ften the case_____________ anything is pssible fr thse wh hang n t hpe.2．Yur supprt is imprtant t ur wrk._____________ yu can d helps.3．_____________ Li Bai, a great Chinese pet, was brn is knwn t the public, but sme wn't accept it.4．_____________ we understand things has a lt t d with what we feel.5．Exactly _____________ the ptat was intrduced int Eurpe is uncertain, but it was prbably arund 1565.
6．_____________the delayed flight will take ff depends much n the weather.7．I think _____________ impresses me abut his painting is the clurs he uses.8．Sme peple believe _____________has happened befre r is happening nw will repeat itself in the future.9．_____________ makes the bk s extrardinary is the creative imaginatin f the writer.10．_____________ yu said at the meeting describes a bright future fr the cmpany.
1．有人命令操场建设下周完成。 It is rdered that the playgrund cnstructin be cmpleted next week. 2．现在她正在买的东西是一些杂志。 What she is buying nw is sme magazines. 3．很明显刚刚有人来拜访过他。 It is bvius that smene came t visit him just nw. 4．这个地区的争执(dispute)何时结束让很多人困惑。 When the dispute in this area will end puzzles many peple. 5．她没有出席婚礼宴会的原因是她头痛。 Why she didn't attend the wedding banquet is that she had a headache.
八、写作练习。第一节（满分15分）假如你是李华， 你向英国朋友Jim介绍对有机农业的了解(rganic farming),请你据此给Jim写一封邮件，开头和结尾已经给出，不计入词数。1.字数不少以1002.你更倾向于有机农业，至少说明三点原因3.希望Jim能回信告诉你英国的有机农业的情况及他的看法4.自行脑补 JimGlad t hear frm yu.___________________