Unit 5　单元知识复习-教案课件-高中英语选择性必修一.docx

Unit 5　Working the land单元知识复习闪卡展示　快速高效Ⅰ.请快速说出下列单词的汉语意思1．crisis n．(pl.crises)危机；危急关头2．attain vt.(通常经过努力)获得；得到3．characteristic n．特征；特点；品质 adj.典型的；独特的4．conventional adj.传统的；习惯的5．overcome vt.克服；解决；战胜6．expand vt.&vi.扩大；增加 vt.扩展；发展(业务)7．estimate vt.估计；估价；估算 n．估计；估算8．comprise vt.包括；包含；由……组成9．celebrity n．名人；名流；名望；名誉10．envision vt.展望；想象11．chemical adj.与化学有关的；化学的 n．化学制品；化学品12．flavour n．味道；特点；特色13．wheat n．小麦；小麦籽14．alleviate vt.减轻；缓解15．poverty n．贫穷；贫困16．organic adj.有机的；不使用化肥的；有机物的17．pesticide n．杀虫剂；除害药物18．widespread adj.分布广的；普遍的；广泛的19．digest vt.&vi.消化 vt.领会；领悟20．aspect n．方面；层面21．fertiliser n．肥料22．essential adj.完全必要的；极其重要的23．mineral n．矿物；矿物质24．alternative n．可供选择的事物 adj.可供替代的；非传统的25．grocery n．食品杂货店；(pl.)食品杂货26．instance n．例子；实例；事例27．root n．根；根茎；根部；根源Ⅱ.请快速拼写下列单词1．shortage n．不足；缺少；短缺→short adj.短的2．devote vt.把……献(给)；把……专用于；专心于→devoted adj.忠诚的；挚爱的；专心的→devotion n．献身；奉献；忠诚3．assumption n．假定；设定；(责任的)承担；(权利的)获得→assume v．假定；认为；承担4．consumption n．消耗；消耗量；消费→consume v．消耗；消费5．reality n．现实；实际情况；事实→real adj.真的；真实的；现实的6．convince vt.使相信；使确信；说服→convincing adj.令人信服的7．generate vt.产生；引起→generation n．产生；一代人8．extension n．扩建部分；扩大；分机→extend v．延伸；扩大；推广9．entirely adv.全部地；完整地；完全地→entire adj.完整的；完全的10．nutritional adj.营养(物)的→nutritious adj.有营养的；营养丰富的→nutrition n．营养；滋养11．bacterium n．细菌→bacteria n．(pl.)细菌12．depth n．向下(或向里)的距离；深(度)→deep adj.深的；深远的Ⅲ.请快速说出下列短语1.请说出与devote有关的短语(1)devote...to把……奉献给；把……专注于(2)devote oneself to致力于；献身于(3)be devoted to专心于；致力于2. 请说出与convince/convinced有关的短语(1)convince sb.of sth.使某人确信/明白某事(2)convince sb.that...使某人相信……(3)convince sb.to do sth.说服某人做某事(4)be convinced (that)/of...(某人)坚信……3. 请说出与assumption/assume有关的短语(1)on the assumption that...假定……(2)make an assumption作出臆断(3)assume sb./sth.(to be)＋adj./n.假定/认为某人/某事(为)……(4)It is assumed that...人们认为……(5)assuming (that)．..假设……4. 请说出与expand有关的短语(1)expand...into...把……扩展/发展成……(2)expand into...发展成/扩大成……(3)expand on/upon sth.细说(阐述)某事5. 请说出与use有关的短语(1)in use在使用(2)make use of利用(3)be of (no) use有(没)用(4)come into use开始被使用(5)There is no use in doing sth.做某事没有用。

6. 请说出与turn有关的短语(1)in turn继而；反过来；依次；轮流(2)by turns轮流(3)take turns to do sth.轮流做某事(4)It is one’s turn to do sth.轮到某人做某事(5)It turns/turned out that...结果是……，原来是……7. 请说出与instant有关的短语(1)for instance比如；例如(2)in the first instance首先(3)in some instance在某种情况下(4)in no instance决不(置于句首，句子用倒装)Ⅳ.请快速背诵下列课文原句1．然而，他最担忧的是农民们的收成不好，有时甚至口粮严重短缺However，what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.2．1953年大学毕业以后，他成了一名科研人员 After graduating in 1953，he worked as a researcher.3．据估计，现在中国国内消费的大米有大约60%来自袁隆平的杂交水稻，他的杂交水稻让中国农民每年能够生产大约两亿吨大米。

Today, it is estimated that about 60 per cent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains，and his strains have allowed China’s farmers to produce around 200 million tons of rice per year.4．他们每隔几年就会把每块地里种植的作物变换一下They often change the kind of crop grown in each field every few years.5．轮换种植的原因就是这些作物会把重要的矿物质重新释放回土壤中，为种植下一批庄稼作好准备Why different crops are grown is because they put important minerals back into the ground，making it ready for the next batch of crops.6．阻止他们这样做的是这样一个事实，即化学耕作满足了全世界对粮食的高需求。

What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world.。