高中英语人教新课标必修四 Unit 2 Working the land Words and expressions 课件（共22张ppt）

课件22张PPT。Unit 2 Working the landWords and expressions教学目标学生能够掌握单词的读音
学生能够掌握重点单词和短语的用法nationality [?n????n?l?ti] n. 国籍
occupation [??kju?pe??n] n. 工作；职业；占领
personality [?p?:s??n?l?ti] n. 性格；个性；人格
confuse [k?n'fju:z] vt. 使迷惑；使为难
regret [r?'ɡret] vt. 遗憾；惋惜
n. 遗憾；懊悔
chemical [?kem?kl] adj. 化学的；关于化学的
organic [?:?g?n?k] adj. 有机的；器官的；组织的
fertile ['f?:ta?l] adj. 肥沃的；富饶的
fertilizer [?f?:t?la?z?(r)] n. 肥料；化肥
production [pr??d?k?n] n. 生产；制造
bacteria [b?k't??r??] n. (bacterium的复数形式) 细菌
pest [pest] n. 害虫；害兽；害鸟
build up 逐渐增强；建立；开发
lead to 导致；造成（后果）
nutrition [nju?tr??n] n. 营养；滋养；食物
mineral ['m?n?r?l] n. 矿物；矿石
discovery [d?'sk?v?r?] n. 发现；发觉
focus ['f??k?s] n. 焦点；中心点
vt. 集中；聚集
focus on 集中（注意力、精力等）于
soil [s??l] n. 土壤
reduce [r?'dju:s] vt. 减少；减缩
keep … free from/of 使……免受（影响；伤害等）；使……不含（有害物）
soybean ['s??bi:n] n. (= soyabean) 大豆
root [ru:t] n. 根；根源
skim [sk?m] vt. 浏览；略读
underline [??nd?'la?n] vt. 画底线标出；强调
summary ['s?m?r?] n. 总结；摘要；概要
comment ['k?ment] n. 评论；议论
vi. & vt. 表达意见；作出评论
producer [pr??dju:s?(r)] n. 生产者；制片人
industrial [?n?d?stri?l] adj. 工业的；产业的
Key words 重点单词1. nation
national


nationality
person
personal
personality n. 性格个性；人格
['ne??n] n. 民族，国民，国家 ?['n??(?)n(?)l] adj. 国家的;国有的;国民的;民族主义的?[?n????n?l?t?] n. 国籍national flag 2 occupation n.“ what’s your occupation”? “ I am a doctor”
Hong Kong was once under the occupation of England.
The enemy soon occupied the town.
Voluntary work occupies a lot of her spare time.
They occupied themselves with medical care.
They were occupied with medical care.
工作；职业；占领occupy—occupied---occupied v. 占领；占去；使忙碌；使从事
occupy oneself in doing sth / with sth 忙于（做）某事
= be occupied in doing sth/ with sth 3.confuse vt. 使迷惑；使为难；使混乱；混淆(1) confuse...and/with...把……和……混淆
(2) confusion n．混乱；迷惑
(3) confused adj. (人) 困惑的，烦恼的 be confused about sth
(4) confusing adj. (以物/ 事) 令人费解的；使人困惑的① I confused him ________ his brother because they are so alike.
②They asked me so many __________questions that I got __________.
③ Judging from his ________ expression，he didn’t understand the_________ problem referring to teenagers’ mental health.withconfusingconfusedconfusedconfusing4. regret v．可惜，后悔，遗憾；惋惜；n. 遗憾，抱歉(1) regret doing/ having sth 后悔做了某事
(2) regret to say / tell / inform that… 遗憾地说/ 告知…
(3) regret that 后悔….
(4) to one’s regret 令某人遗憾的是….
(5) with regret 遗憾地 ① He has always regretted ______________________ harder at home .
② I regret _________(inform) you that you failed the exam.
③ ______our great regret, the plan had to be given up.
④ He told me _____regret that he could not come to the party. not studying / having studied to informTo with5. focus n 焦点，焦距，中心
v 集中；聚焦
(1) the focus of attention 关注的焦点
(2) focus ( one’ attention/ mind/ energy/ eyes ) on doing sth
① We should ______ ______ _________ ______ our study.我们应该把注意力放在学习上。② she stood there with her attention_________(focus) on her novel. focus our attention on focused6. reduce vt. 减少；缩减；简化 reduce to... 减少到……
reduce by... 减少了……[即学即练]
(1)He persuaded them to ______ the price ______ $1 000.他设法使他们的价格降到1 000美元。
(2)Production costs have ______ ________ ______ one third.生产成本下降了1/3。reducetobeenreducedby7. comment v. 评论 n 评语，评论，意见
(1) comment on/ upon sth 评论; 对……发表意见comment that…. 评论……
(2) No comment! 无可奉告！
make a comment on/ upon sth
[即学即练]他对时事问题做出了评论。 He commented on / upon current topics.
He made some comments on/ upon current topics.
Make a summary 总结1． ________ n．国家；民族
________ adj. 民族的
__________ n. 国籍
2． ________ vt. 占据；占领；使忙碌；
___________ n. 工作；职业；占领
3． ________ v. 生产；制造
________ n. 产品
___________ n. 生产；制造
________ n. 生产者；制片人
nationnational nationality occupyoccupationproduceproduct productionproducer4． ___________ v. 发现
___________ n. 发现；发觉
5． ___________ vt. 减少；减缩
discoverdiscoveryreduce6． ___________ vt. 使疑惑；使为难
___________ n. 疑惑；困惑
___________ adj. 疑惑的；难以理解的
____________adj. 对…感到困惑的
7 ____________ adj.化学的
____________ n．化学
8 ________(vt.) 遗憾；惋惜 (n.) 遗憾；懊悔
→ ____________(过去式/过去分词)→ ___________(adj.) 后悔的；失望的；遗憾的
9 __________(n.) 营养；滋养；食物
→___________(adj.) 有营养的；营养丰富的
10 ___________v n 集中 ；焦点
_____________________集中注意力在…上
11 _______________n.v 评论confuseconfusionconfusing chemical chemistry　 regretregretted regretfulconfused nutrition nutritious focus focus on comment 减少到______ 减少了_______by / about missing on on discovery of reduced by 10 percent made no comment are confused about Much to my regret Key expressions 重点短语1. build up？(1) He started taking physical exercises every day to build up my strength.
(2) His confidence built up so he gained more and more experience.
(3) By working hard, he has built up a good reputation/ fame.
(4) It is said that she has built up a very successful business .
(1) build up one’s strength/ body 增强体质
(2) confidence build up 自信心逐渐增强
(3) build up a reputation/ fame 建立名声
(4) build up a business 创办公司观察发现 (1) lead to 中的to为介词，后面跟名词，代词，动名词
(2) lead sb to do sth 使某人做某事
2 lead to (led --led) 导致，造成（后果）；通向
① All roads lead to Rome.
② Many of these chemicals can lead to cancer or other illnesses.
③ Questioning can lead to _________(search) for an answer.
④ The discovery of new evidence led to the thief’s____________(catch). searching being caught6 discovery n 发现 发觉
discover v 发现
discoverer n 发现者
3 keep….free of / from 使…免受影响（伤害）This also _____the air, soil, water and crops __________ chemicals. keep free from/ of upto on of / from tooff In built upfocus onleading tokeepingfree of/ from turn toThank You !