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1、Part Learning about Language & Using Language,.重点单词 1._ n.营养；滋养；食物 2._ n.焦点；中心点 vt.集中；聚焦 3._ n.土壤 4._ vt.减少；减缩 5._ n.根；根源 6._ vt.浏览；略读,nutrition,focus,soil,reduce,root,skim,7._ vt.画底线标出；强调 8._ n.评论；议论vi.& vt.表达意见；作出评论 9._ vt.使迷惑；使为难confused adj.困惑的；烦恼的confusing adj.令人困惑的confusion n.困惑；混乱 10._ vt.遗憾；
2、惋惜 n.遗憾；懊悔regretful adj.遗憾的；后悔的regretfully adv.遗憾地；痛惜地 11._ adj.化学的；关于化学的chemistry n.化学制品；化学药品 12._ n.矿物；矿石mine n.矿；矿山 13._ n.生产；制造produce vt.生产；制造producer n.生产者；制片人 14._ n.发现；发觉discover vt.发现discoverer n.发现者 15._ n.总结；摘要；概要summarize vt.总结；概括,underline,comment,confuse,regret,chemical,mineral,product
3、ion,discovery,summary,.核心短语 1._ 需要 2._ 给造成损害 3._ 将洗掉；洗净 4._ 逐渐增强；建立；开发 5._ 导致；造成(后果) 6.in addition _ 7.focus on _ 8.keep.free from/of _ ment on _ 10.in summary _,(be) in need of,cause damage to,wash off,build up,lead to,另外,集中(注意力、精力等)于,使免受(影响、伤害等)；使不含(有害物),对作出评论,总之,.经典句式 1.Recently，however，scientist
4、s _ that long-term use of these fertilizers can _the land and，even more dangerous，to peoples health. 然而，最近科学家发现长期使用这些肥料会造成土地受损，甚至更危险的是，会对人们的健康造成危害。 2.In addition，fruit，vegetables and other food grown with chemical fertilizers usually grow _ much nutrition. 另外，施过化肥的水果、蔬菜和其他食物通常生长得过快而营养不足。,have been f
5、inding,cause damage to,too fast to be full of,3.Crops such as peas or soybeans put important minerals back into the soil，_ crops such as wheat or corn that need rich and fertile soil. 像豌豆或大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于要求土壤肥沃的农作物，比如小麦或玉米。,making it ready for,1.转化词汇,regret vt.遗憾；惋惜n.遗憾；懊悔 focus n.焦点；中心点v
6、t.集中；聚焦 comment n.评论；议论vt.& vi.表达意见；作出评论,2.合成词汇,soy(a)(大豆)bean(豆子)soybean(soyabean) n.大豆 under(在下面)line(线)underline vt.画底线标出；强调,原文呈现,CHEMICALOR ORGANIC FARMING?,Over the past half century，using chemical fertilizers has become very common in farming.Many farmers welcomed them as a great way to stop c
7、rop disease and increase production.Recently，however，scientists have been finding that long-term use of these fertilizers can cause damage to the land and，even more dangerous，to peoples health.,What are some of the problems caused by chemical fertilizers？First，they damage the land by killing the hel
8、pful bacteria and pests as well as the harmful ones.Chemicals also stay in the ground and underground water for a long time.This affects crops and，therefore，animals and humans，since chemicals get inside the crops and cannot just be washed off.These chemicals in the food supply build upin peoples bod
9、ies over time.Many of these chemicals can lead to cancer or other illnesses.In addition，fruit，vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition.They may look beautiful，but inside there is usually more water than vitamins and minerals.,阅读清障,c
10、hemical/kemIkl/adj.化学的；关于化学的 organic/：nIk/adj.有机的；器官的；组织的 organic farming有机耕作 fertilizer/f：tIlaIz/n.肥料；化肥 “over the past时间段”常与现在完成时连用；动名词短语using chemical fertilizers作主语，谓语动词用单数。 production/prdkn/n.生产；制造 have been finding是现在完成进行时形式，表示动作从过去持续到现在，而且目前还在进行中。 long-term use of sth长期使用某物 cause damage to对产生
11、损害,过去分词短语caused by chemical fertilizers作后置定语。 bacteria/bktIrI/n.(bacterium/bktIrIm/的复数形式)细菌 pest/pest/n.害虫 wash off洗掉 build up逐渐增强；建立；开发 over time随着时间的推移 lead to(n./pron.)导致；造成(后果) in addition另外(用作副词短语，作状语) in addition to除之外,过去分词短语grown with chemical fertilizers作后置定语。 nutrition/nju：trIn/n.营养；滋养；食物 m
12、ineral/mInrl/n.矿物；矿石 discovery/dIskvrI/n.发现；发觉 with these discoveries在句中作原因状语。 turn to转向；求助于 focus on(concentrate on)集中(注意力、精力等)于 soil/sIl/n.土壤 reduce/rIdju：s/vt.减少；减缩,.What does the passage tell us? Since chemical fertilizers have caused _，farmers have turned to _，using _ to keep the soil rich. .Ma
13、tch the main idea with each paragraph. Para.1 A.Problems caused by chemical fertilizers. Para.2 B.Farmers and customers turn to organic farming. Para.3 C.Long term use of chemical fertilizers can cause damage to the land and peoples health. Para.4 D.Other methods to keep the soil fertile.,答案 Para.1
14、C Para.2 A Para.3 B Para.4 D,damage,organic farming,natural waste,.Choose the best answer according to the text.,1.From the passage，we can see organic farmers are those who . A.grow crops with chemical fertilizers B.grow crops with natural fertilizers C.produce organic fertilizers D.care for the environment 2.From the fourth paragraph，we know that . A.its not good to plant grass between crops B.peanuts use the surface of soil C.peas and soybeans should be grown
