B4U2第三学时 Using Language：
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栏 目 链 接
要
Q1: 为什么在耕作中使用化肥变得越来越普遍？ Q1：Why are chemical fertilizers so popular in farming today? _________________________________________________ A1：Because they are a great way to stop crop disease and _______________________ increase production.
confused 惑 不解的→______________adj. 迷惑的；为难的
→____________n ．混淆；困惑 confusion regret 2．________vt. 遗憾；惋惜n.遗憾；懊悔 regretfully →regretful ________adj.后悔的；遗憾的→______________adv. 后悔 地；惋惜地
栏 目 链 接
要
3．________adj. 化学的；关于化学的n.化学药品 chemical chemist ．化学家；药剂师→chemistry →________n ________n．化学
课 热
前 身
production produce vt.生产；制 4． ________n．生产；制造→________
栏 目 链 接
_________________________________________________ increase production but cause damage to the land and
_________________________________________________ people while organic farming may keep the soil rich and _________________________________________________ free from chemicals. ______________________
英语· 必修4（人教版）
三学时
Using Language：
Reading，Listening and Speaking
栏 目 链 接
要
课 热
前 身
Ⅰ.单词默写
(A)根据所给的词性和汉语意思写出下列单词。 confuse vt.使迷惑；使为难→confusing 1．________ ________adj.令人迷
栏 目 链 接
要
keep 3．This also________the air，soil，water and
free of/from crops____________chemicals.( 免受……的影响)
栏 目 链 接
要
语 理
篇 解
Task 1
口 语 训 练 Q2: 使用化肥会导致什么问题？
Q2：What problems can be caused by using chemical _______________________________________________ fertilizers? ____________________________________________________
栏 目 链 接
words) to show it is (they are) important.
8．________ comment：an opinion that you express about
要
someone or something.
课 热
前 身 reduce ：to make sth.less or smaller in size， 9．________ quantity，price，etc.. 10．________ focus ：to give attention to one particular subject，situation or person.
栏 目 链 接
要
summarize 8．summary ________n．总结；摘要；概要→________ vt.总 结；概括
课 热
前 身
(B)根据所给的英文解释写出下列单词。 bacteria ：very small living things related to 1．________ plants，some of which cause disease.
people's health.
语 理
篇 解 4．How many ways do the organic farmers have to keep their soil fertile and healthy? A A．3 B．4 C．5 D．6 5. In what kind of magazine can we find the passage? C
要
语 理
篇 解
Task 2
仔细阅读“Chemical or Organic Farming？”，根
据课文内容选择正确答案。 1．From the passage，we can see organic farmers are those who ________ ． B A．grow crops with chemical fertilizers
product 造n.产物；农产品→____________n ．产品；产物
5．nutrition ________n．营养；滋养；食物 →______________adj. 有营养的 nutritious 6．discovery ________n．发现；发觉→________ discover vt.发现 7．________vt. 减少；减缩→____________n reduce reduction ．减少； 简化
栏 目 链 接
要
课 前 热 身
Ⅲ.佳句背诵
1．_____________________( With these discoveries 由于这些发现)，some farmers and many customers are to turn to beginning______________________( 转向)organic farming. 2．They______________________( 着力 focus on keeping 于)________their soil rich and__________________disease.( 保持土壤肥沃，远离病 free of 害 )。
栏 目 链 接
要
A．Sports. B．Health. C．Agriculture. D．Science.
栏 目 链 接
要
口 语 训 练
Part A
Part A
Role Play
Role Play
情景介绍：Alice向George请教有关有机耕作的问题。 角色：Alice和George。 任务：(1) 请根据中文提示提出问题。 (2) 请你的同学根据课文内容回答你的提问，然后你们互 换角色进行口语练习。
栏 目 链 接
要
课 前 热 身
Ⅱ.短语熟记
1．__________ build up 逐渐增强；建立
2．__________ lead to 导致，造成(后果)
3．__________ focus on 集中(注意力、精力等)于
keep free of/from 使……免受(影响、伤害等) 4．________________ 5．__________ in addition 而且，另外
B．Chemicals stay in the ground and underground water foห้องสมุดไป่ตู้ a long time. C．The helpful bacteria and pests are killed as well as the harmful one.
栏 目 链 接
要
D．Many of these fertilizers are dangerous to
快速阅读课文“Chemical or Organic Farming？”，
以约30词写出文章的段落大意。 温馨提示：本文是说明文， 写摘要时要抓住文章 介绍的主要方面。 Chemical fertilizers may stop crop diseases， ____________________________________________
____________________________________________________ underground water for a long time.They damage people's ____________________________________________________ health by building up in their bodies and leading to cancer ______________________ or other illnesses.
pest ：a small animal or insect that destroys 2．________
crops or food supplies. mineral ：a substance that is formed naturally 3．________ in the earth，especially a solid substance such as coal， salt，stone，or gold.
栏 目 链 接
要
B．grow crops with natural fertilizers
C．produce organic fertilizers
D．care for the environment
语 理
篇 解 2．From the fourth paragraph，we know that ________ B ． A．it's not good to plant grass between crops B．peanuts use the surface of soil C．peas and soybeans should be grown together with corn and wheat D．vegetables that put down deep roots are harmful to the soil
栏 目 链 接
要
语 理
篇 解 3．According to the text，which of the following is NOT the problem caused by chemical fertilizer? A
A．Crop diseases can be stopped.
栏 目 链 接
要
4．________ soil ：the top layer of the earth in which plants grow.
课 热
前 身 5．________ root ：the part of a plant that grows under the ground and gets water and nutrient from the soil. 6．________ skim ：to read something quickly to find the main facts or idea in it. 7．underline ________：to draw a line under a word (or
____________________________________________________ A2：They can damage the land by killing helpful
栏 目 链 接
____________________________________________________ bacteria and pests and by staying in the ground and
要
Q1: 为什么在耕作中使用化肥变得越来越普遍？ Q1：Why are chemical fertilizers so popular in farming today? _________________________________________________ A1：Because they are a great way to stop crop disease and _______________________ increase production.
confused 惑 不解的→______________adj. 迷惑的；为难的
→____________n ．混淆；困惑 confusion regret 2．________vt. 遗憾；惋惜n.遗憾；懊悔 regretfully →regretful ________adj.后悔的；遗憾的→______________adv. 后悔 地；惋惜地
栏 目 链 接
要
3．________adj. 化学的；关于化学的n.化学药品 chemical chemist ．化学家；药剂师→chemistry →________n ________n．化学
课 热
前 身
production produce vt.生产；制 4． ________n．生产；制造→________
栏 目 链 接
_________________________________________________ increase production but cause damage to the land and
_________________________________________________ people while organic farming may keep the soil rich and _________________________________________________ free from chemicals. ______________________
英语· 必修4（人教版）
三学时
Using Language：
Reading，Listening and Speaking
栏 目 链 接
要
课 热
前 身
Ⅰ.单词默写
(A)根据所给的词性和汉语意思写出下列单词。 confuse vt.使迷惑；使为难→confusing 1．________ ________adj.令人迷
栏 目 链 接
要
keep 3．This also________the air，soil，water and
free of/from crops____________chemicals.( 免受……的影响)
栏 目 链 接
要
语 理
篇 解
Task 1
口 语 训 练 Q2: 使用化肥会导致什么问题？
Q2：What problems can be caused by using chemical _______________________________________________ fertilizers? ____________________________________________________
栏 目 链 接
words) to show it is (they are) important.
8．________ comment：an opinion that you express about
要
someone or something.
课 热
前 身 reduce ：to make sth.less or smaller in size， 9．________ quantity，price，etc.. 10．________ focus ：to give attention to one particular subject，situation or person.
栏 目 链 接
要
summarize 8．summary ________n．总结；摘要；概要→________ vt.总 结；概括
课 热
前 身
(B)根据所给的英文解释写出下列单词。 bacteria ：very small living things related to 1．________ plants，some of which cause disease.
people's health.
语 理
篇 解 4．How many ways do the organic farmers have to keep their soil fertile and healthy? A A．3 B．4 C．5 D．6 5. In what kind of magazine can we find the passage? C
要
语 理
篇 解
Task 2
仔细阅读“Chemical or Organic Farming？”，根
据课文内容选择正确答案。 1．From the passage，we can see organic farmers are those who ________ ． B A．grow crops with chemical fertilizers
product 造n.产物；农产品→____________n ．产品；产物
5．nutrition ________n．营养；滋养；食物 →______________adj. 有营养的 nutritious 6．discovery ________n．发现；发觉→________ discover vt.发现 7．________vt. 减少；减缩→____________n reduce reduction ．减少； 简化
栏 目 链 接
要
课 前 热 身
Ⅲ.佳句背诵
1．_____________________( With these discoveries 由于这些发现)，some farmers and many customers are to turn to beginning______________________( 转向)organic farming. 2．They______________________( 着力 focus on keeping 于)________their soil rich and__________________disease.( 保持土壤肥沃，远离病 free of 害 )。
栏 目 链 接
要
A．Sports. B．Health. C．Agriculture. D．Science.
栏 目 链 接
要
口 语 训 练
Part A
Part A
Role Play
Role Play
情景介绍：Alice向George请教有关有机耕作的问题。 角色：Alice和George。 任务：(1) 请根据中文提示提出问题。 (2) 请你的同学根据课文内容回答你的提问，然后你们互 换角色进行口语练习。
栏 目 链 接
要
课 前 热 身
Ⅱ.短语熟记
1．__________ build up 逐渐增强；建立
2．__________ lead to 导致，造成(后果)
3．__________ focus on 集中(注意力、精力等)于
keep free of/from 使……免受(影响、伤害等) 4．________________ 5．__________ in addition 而且，另外
B．Chemicals stay in the ground and underground water foห้องสมุดไป่ตู้ a long time. C．The helpful bacteria and pests are killed as well as the harmful one.
栏 目 链 接
要
D．Many of these fertilizers are dangerous to
快速阅读课文“Chemical or Organic Farming？”，
以约30词写出文章的段落大意。 温馨提示：本文是说明文， 写摘要时要抓住文章 介绍的主要方面。 Chemical fertilizers may stop crop diseases， ____________________________________________
____________________________________________________ underground water for a long time.They damage people's ____________________________________________________ health by building up in their bodies and leading to cancer ______________________ or other illnesses.
pest ：a small animal or insect that destroys 2．________
crops or food supplies. mineral ：a substance that is formed naturally 3．________ in the earth，especially a solid substance such as coal， salt，stone，or gold.
栏 目 链 接
要
B．grow crops with natural fertilizers
C．produce organic fertilizers
D．care for the environment
语 理
篇 解 2．From the fourth paragraph，we know that ________ B ． A．it's not good to plant grass between crops B．peanuts use the surface of soil C．peas and soybeans should be grown together with corn and wheat D．vegetables that put down deep roots are harmful to the soil
栏 目 链 接
要
语 理
篇 解 3．According to the text，which of the following is NOT the problem caused by chemical fertilizer? A
A．Crop diseases can be stopped.
栏 目 链 接
要
4．________ soil ：the top layer of the earth in which plants grow.
课 热
前 身 5．________ root ：the part of a plant that grows under the ground and gets water and nutrient from the soil. 6．________ skim ：to read something quickly to find the main facts or idea in it. 7．underline ________：to draw a line under a word (or
____________________________________________________ A2：They can damage the land by killing helpful
栏 目 链 接
____________________________________________________ bacteria and pests and by staying in the ground and