人教新课标高一必修4 Unit 2 Working the land单元复习课件（95张）

课件95张PPT。Unit 2
Working the land知识归纳(一) 基本单词
1. ____________ vi. & n. 斗争; 拼搏; 努力
2. ____________ n. 十年; 十年期
3. ____________ adj. 特级的；超级的
4. ____________ n. 产量；输出
5. ____________ n. 庄稼；农作物；产量
6. ____________ adj. 引起烦恼的；
令人不安的struggledecadesuperoutputcropdisturbing知识清单7. ____________ vt.& vi. 使变大; 伸展
8. ____________ vt.& vi. 循环; 流传
9. ____________ n. 战役；战斗；较量
vt. & vi. 搏斗；奋斗
10. ____________ n. 自由；自主
11. ____________ adv. 因此; 所以; 因而
12. _____________ n. 谷物；粮食；颗粒
13. ____________ n. 国籍expandcirculatethereforenationalitybattlefreedomgrain14. __________ n. 工作; 职业; 占领
15. __________ vt. 遗憾; 惋惜
n. 遗憾; 懊悔
16. __________ n. 生产；制造
17. ________ n. 细菌(bacterium的复数)
18. __________ n. 害虫
19. __________ n. 营养；滋养；食物
20. __________ n. 矿物；矿石regretbacteriapestnutritionoccupationproductionmineral21. __________ n. 土壤
22. __________ n. 焦点; 中心点
vt. 集中; 聚焦
23. __________ vt. 减少; 减缩
24. ________ n. 根；根源
25. __________ vt. 浏览；略读
26. __________ vt. 画底线标出；强调
27. __________ n. 评论; 议论
vi.& vt. 表达意见; 作出评论focusreducecommentsoilrootskimunderline(二) 派生单词
28. ___________ n. 饥饿;欲望
vt. & vi. (使)饥饿
→__________ adj. 饥饿的; 渴望得到的
29. ____________ vt. & vi. 配备; 装备
→____________ (不可数) n. 设备
30. ____________ vt. & vi. 输出; 出口
→__________ (反义词) vt. & vi. 输入; 进口hungerhungryequipequipmentexportimport31. ____________ n. 发现；发觉
→__________ v. 发现
32. ____________ vt. 使迷惑; 使为难
→____________ adj. 令人迷惑的
→____________ adj. 感到迷惑的
→_____________ n. 迷惑
33. ____________ n. 总结; 摘要; 概要
→_____________ vt. 总结confuseconfusingconfusedconfusionsummarysummarizediscoverydiscover1. 幸亏，由于，因为 _____________
2. 摆脱，除去 ______________
3. 对……感到满意 _______________
4. 宁愿，宁可 ________________thanks torid …ofbe satisfied withwould rather(三) 短语5. 逐渐增强; 建立; 开发 __________
6. 导致; 造成 (后果) __________
7. 集中(注意力/精力等) ________
8. 使……免受(影响;伤害等); 使……不含 (有害
物) __________________build uplead tofocus onkeep...free from/of1. Have you ever grown any plants? If so, what did you do to grow them? If not, what kind of plant would you like to try growing?
if so与if not都是条件状语从句的缩略形式, 分
别表示肯定和否定。(四) 句式2. Dr.Yuan Longping grows what is called super hybrid rice.
what引导名词性从句
3. In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output.
the first＋n.＋to do... 意为“第一个要做……的……”4. Using his hybrid rice, farmers are producing harvests twice as large as before.
倍数表达法：
A＋be＋倍数＋as＋adj.＋as＋B
A＋be＋倍数＋比较级＋than＋B
A＋be＋倍数＋（由某些形容词变化而来的）n.＋of＋B5. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and, even more dangerous, to people’s health.
现在完成进行时1. struggle vt.& vi.& n. 斗争; 拼搏; 努力; 挣扎
[课文原句] Indeed, his sunburned face and arms and his slim and strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five decades.
的确，他那被太阳晒的黝黑的脸庞和手臂，以及他那瘦削而又结实的身体，就跟其他千百万的中国农民一样，过去五十年来，他一直努力帮助他们。核心要点一、单词【归纳】
struggle to do sth. 艰难地做某事, 挣扎着做
某事
struggle for 为……而斗争
struggle to one's feet 挣扎着站起来
struggle with (against)
与……作斗争, 同……搏斗
struggle to one's feet 挣扎着站起来struggle指较长时间的、激烈的斗争，往往指肉体及精神上的战斗。
fight意为“搏斗，打斗，打架”，表示“斗争”时，包含体力和勇猛的因素。struggle/fight用适当的介词填空。
1. Fish struggle _____ survival when the water level drops in the lake.
2. For years he has been struggling ____________ cancer.
3. He struggled _____ his attacker who then ran off.for?with / against?with2. expand vt. 使变大; 使增强; 阐述
vi. 扩大; 增加; 增强
[课文原句] Dr Yuan searched for a way to increase rice harvests without expanding the area of the field.
袁博士(开始)在不增加农田面积的基础上寻求水稻增产的途径。
【归纳】
expand...into 把……扩展(发展, 膨胀)成
expand on/upon 阐述; 详谈【拓展】
expansion n. 展开；膨胀；扩展
expansive adj. 广阔的；易膨胀的expand展开, 扩大, 不仅指尺寸的增加, 还可指范围和体积的扩大。
extend伸出, 延伸, 指空间范围的扩大, 以及长度、宽度的向外延伸, 也可指时间的延长。
spread伸开, 传播, 一般指向四面八方扩大传播的范围, 如传播(疾病)、散布(信息)等。
stretch伸展, 拉长, 一般指由曲变直、由短变长的伸展, 不是加长。expand/extend/spread/stretch【即时应用】
用expand/extend/spread/stretch的适当形式填空
(1) The hot weather __________ to October.
(2) Water _________ when it freezes.
(3) He ___________ his body full.
(4) The fire soon ________ to the nearby
building. extendedexpandsstretchesspread3. equip vt.& vi. 装备; 配备
[课文原句] He therefore gives millions of yuan to equip others for their research in agriculture.
于是他拿出几百万元帮助其他人进行农业科学研究。
【归纳】
equip...with... 用……装备……
be equipped with 装备着
equip...for sth./to do sth. 为了……而装备
well/poorly equipped 设备精良的/较差的【拓展】
equipment n. 装备; 设备(不可数名词)
a piece of equipment 一件设备根据中英文提示完成下列句子。
1. 许多公司已在他们的出租车上安装了全球定位系统。
Many companies ___________________ __________?GPS.
2. 你的训练使你能够胜任将来的工作。
Your training will _____________ your future job.have equipped theirequip you for taxies with ?4. therefore adv. 因此；所以；因而
[课文原句] He therefore gives millions of yuan to equip others for their research in agriculture.
于是他拿出几百万元帮助其他人进行农业科学研究。therefore/so/thus[即景活用] 用therefore，so，thus填空。
① She was caught cheating in the exam and
________ she was punished by her
teacher.
② She coughed badly, ________ she went to
see a doctor.
③ The tram stopped suddenly, ________
causing the delay.thereforesothus5. confuse vt. 使迷惑;使为难;使混乱;混淆
[课文原句]It is important to explain this again
or we will confuse the students.
把这个再解释一次很重要，否则我们会使学
生糊涂。
【归纳】
confuse...and/with... 把……和……混淆
【拓展】
confusion n. 混乱; 迷惑
in confusion 处于混乱状态
confused adj. 困惑的; 烦恼的be confused about 被……搞糊涂; 对……
迷惑不解
confusing adj. 令人费解的;使人困惑的用confuse的适当形式填空。
1. Some of the questions he asked were very __________.
2. In __________ I lost my bag and wasn’t able to find it.
3. I’m totally __________. Could you explain that again?
4. It’s easy to _________ them because they’re so alike.confusing?confusionconfused?confuse6. regret vt. 遗憾; 惋惜 n. 遗憾;懊悔
【归纳】
regret to do sth. 遗憾地去做某事
regret doing sth. 后悔做过某事
regret not to have done sth.
后悔没做过某事
regret that 从句 遗憾……
with great/deep regret 很遗憾
to one’s regret 让某人感到遗憾的是【拓展】
regretful adj. 懊悔的，遗憾的，惆怅的 regrettable adj. 令人遗憾的，使人痛惜
的，可悲的，不幸的将下列句子翻译成英语。
1. 我很遗憾地告诉你，我不能帮助你。I regret to tell you that I can not lend you a hand.2. 他说他很后悔把事件的真相告诉了他母亲。
3. 令他们感到非常遗憾的是，足球赛的票已经卖光了。He said he regretted telling / having told / that he had told the truth of the matter to his mother.Much to their regret / To their great regret, the tickets for the football game were sold out. 7. focus n. 焦点; 中心点 v. 集中; 聚集
[课文原句]They focus on keeping their soil
rich and free of disease.
他们主要是想保持土壤肥沃且免受病害。
【归纳】
focus on / upon 集中(注意力、精力等)于
focus one’s attention/mind/energy on
集中注意力/心思/精力于
the focus of attention 关注的焦点
bring...into focus 使……成为焦点
in focus 对准焦点; 清晰
out of focus 没有对准焦点; 不清晰根据汉语意思补全下列句子。
1. 你必须努力把思想集中在工作和学习上。
You must try to _____________________ work and study.
2. 这次讨论的焦点是女性在广告中的角色。
_____________________________ was the roles of women in advertising.focus your mind onThe main focus of the discussion8. reduce v. 减少; 减缩
[课文原句]A healthy soil reduces disease and
helps crops grow strong and healthy.
肥沃的土壤减少了病虫害并且有助于农作物的茁壮成长。
【归纳】
reduce sth. to... 减少到……
reduce sth. by... 减少了……
be reduced to 沦落为……;
陷入某种状态; 被降职到……??reduce to silence使安静下来
? reduce to order 使恢复秩序；整理好
【拓展】
increase v. 增加根据汉语提示完成句子。
1. 这里的人口现在已减少到5万。
The population here has _______________ fifty thousand now.
2. 听到这个坏消息，全班都安静了下来。
Hearing the bad news, the class was
_________________.?
3. 据报道，那个地区的米价下降了5%。
It is reported that the price of the rice in that area _______________ 5%.been reduced to?reduced to silencewas reduced by9. comment vi. &vt. 表达意见；作出评论
n. 评论；议论
[课文原句] Swap summaries with your partner and give each other comments.
【归纳】
comment on/about sth. / sb.
对某事/某人进行评论
make comments/no comment on sth./sb.
对某事/某人进行评论/不进行评论翻译下列句子。
1. She made helpful comments on my work.?
2. I don’t feel I can comment on their decision.她对我的工作提出了有益的评论。我觉得我无法对他们的决定作出评论。?课堂练兵 单词拼写
1. He has been living here for a ________ (十年)．
2. They hope to ________ (扩大) their company.
3. _________ (因此), we must treasure the time.
4. “We _______ (出口) them and then we need to import them,”James said.decadeexpandThereforeexport5. The condition prevents the blood from ___________ (循环) freely.
6. They have to r_______ expenses this year.
7. I’m too tired to f_____ on anything.
8. Can you show anything to prove your n_________？circulatingreducefocusnationality9. The manager made no c_______ on
my advice at the meeting.
10. The teacher wrote down the sentences and u__________ the key words in a different color.
commentunderlined1. thanks to 由于；多亏（有时用作
反语）; 因为
[课文原句] Thanks to his research, the UN has
more tools in the battle to rid the world of
hunger.
多亏他的研究，联合国在消除世界饥饿的战斗
中又多了些方法。
【拓展】
表示“因为，由于”的短语还有：
because of, owing to, on account of, due to,
as a result of, result from二、短语[方法规律] owing to和thanks to的宾语所表达的内容往往是正面的、积极的东西。due to、because of和as a result of的宾语则为中性的内容。在表达负面、消极的内容时多用as a result of和due to。 【温馨提示】
以上这些都是介词短语，因此后面可以跟名
词或动名词而不可以跟从句。根据汉语提示，用thanks to完成下列句子。
1. It was all a great success — _________________________ (由于尽心竭力).
2. ____________________ (多亏了你的帮助), we arrived there safely.thanks to a lot of hard workThanks to your help2. rid...of 摆脱; 除去
[课文原句] Thanks to his research, the UN has
more tools in the battle to rid the world of
hunger.
【拓展】
rid oneself of debts 还清债务
rid sb. of one’s doubt 消除某人的疑虑
rid oneself of a bad habit 改掉……不良习惯
get rid of 摆脱; 除去
be rid of 摆脱; 去掉3. be satisfied with 对……表示满足或满意
[课文原句] Dr Yuan is quite satisfied with his
life.
袁隆平对生活非常满足。
【拓展】
be happy with 对......满意
be content with 对......满意
be satisfied to do sth. 对做...…感到满意
to one’s satisfaction= to the satisfaction of
sb. 使某人满意的是4. would rather 宁愿，宁可 其后接动词原形
[课文原句] He would much rather keep time for his hobbies.
他宁愿把时间花在自己的业余爱好上。
【拓展】
would rather...than... 常用句式，意为“宁可（愿）……（而）不要（愿）……”
would rather＋从句，从句要用虚拟语气，用动词的过去时表示。
would rather have done
本想做……（而实际上未做） 每个句子都有一处错误，请找出并改正。??
1. This Sunday I would rather staying at home than go to the park.
? _______________
2. He would rather don’t go with me. _______________
3. I’d rather had the small apple. _______________staying?→?staydon’t?→?nothad?→?have5. build up 逐渐增加，变得严重起来，
(车辆)拥挤起来；积累，
积聚；加强(力量)，增强(体质)；建
立，开发
[课文原句] These chemicals in the food supply
build up in people’s bodies over time.
随着时间的推移，食物中的这些化学成分会
在人体中堆积。
【归纳】
build sb. / oneself up
build up one’s body / strength / health
增强某人的体质，使某人更加强壮。翻译句子。
1. Hard working conditions build up character.
2. I’m very glad to see that your vocabulary is gradually building up.
3. We are building up a good business.艰苦的工作条件能磨练人的性格。看到你的词汇量在逐渐增长，我很高兴。我们的生意兴隆。[真题呈现] (2013·浙江，17) Bears ________ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
A. pack up B. build up C. bring up D. take up B6. lead to 导致; 造成(后果); 通向
[课文原句] Many of these chemicals can lead
to cancer or other illnesses.
许多化学成分导致癌症或其他疾病。
【拓展】
lead sb. to do sth.
诱导某人做某事，使某人做某事
lead sb. to sp. 带领某人去某地
lead sb. into 带某人进入
lead the way 引路, 带路
lead/live/have a...life 过着……样的生活用lead?to翻译下列句子。
1. 吃太多的糖会引起健康问题。
Eating too much sugar can lead to health problems.
2. 这条路通向公园。
The road leads to the park.
3. 她带领我们到了楼上的房间。
She led us to a room upstairs.[真题呈现](2010·重庆，30) The news shocked the public, ________ to great concern about students’ safety at school.
A. having led B. led
C. leading D. to leadC7. keep...free from /of 使……免受(影响/伤
害); 使……不含(有害物)
[课文原句] They feel that this makes the soil
in their fields richer in minerals and so more
fertile. This also keeps the air, soil, water and
crops free from chemicals.
他们认为这样会使地里的土壤更富含矿物
质，因而也会更加肥沃，同时还可以让空
气，土壤，水以及农作物不受化学物质的污
染。 【拓展】
be free from/of... 无……的; 免于……的
for free 免费
free of charge 免费课堂练兵 用所学短语填空
1. The precision instrument must _________________ dust.
2. His eyes slowly began to ________ what looked like a small dark ball.
3. Henry ____________ that his girlfriend worked in the same department as he does.be kept free from?focus on??would rather?4. Every morning my grandfather spends 45 minutes doing physical exercises to ________ his health.
5. This kind of discussion will ________ still greater differences between the two parties.build uplead to1. If so, what did you do to grow them? 如果这样的话, 你做了些什么来种植这些植物？
①if so意为“如果是这样的话”, 是if引导的条件状语从句的省略形式, 表示肯定意义, 如果表示否定意义, 则用 if not。(三) 句式②if 构成的其他省略形式：
if any 如果有的话
if possible 如果可能的话
if necessary 如果必要的话[真题呈现](2011·江苏，33) It sounds like something is wrong with the car’s engine. ________, we’d better take it to the garage immediately.
A. Otherwise B. If not
C. But for that D. If soD2. In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output.
the first/last/best/only/very/right ...+n. + to do sth. 表示“第一个/最后一个/最好的一个/唯一的/恰好的/合适的……做某事的人/物”。
不定式放在表示次序的词the first, the last, the best以及the only, the very, the right等词后面,且这些词与动词不定式有逻辑上的主谓关系。e.g. He is always the first to come and the last to leave.
他总是第一个来最后一个离开。
The last man to leave the sinking ship was the captain.
最后一个离开正在下沉的船的那个人是船长。3. Using his hybrid rice, farmers are producing harvests twice as large as before. 用他的杂交水稻种子，农民们种出的粮食比以前多了一倍。
倍数表达法：
A＋be＋倍数＋as＋adj.＋as＋B
A＋be＋倍数＋比较级＋than＋B
A＋be＋倍数＋（由某些形容词变化而来的）n.＋of＋Be.g. I’m not going out with a man who’s twice as old as me.
我不愿意和一个年纪比我大一倍的男人一起参加社交活动。
My house is three times bigger than yours.
我的屋子比你的大三倍。
Your playground is 900 metres wide, three times the size of ours. 你们操场有900米宽, 是我们的三倍。 语法动词-ing形式作主语和宾语
一、动词-ing形式作主语
★ 动词-ing形式作主语，表示一般或抽象的习惯性行为，谓语动词用单数。如：
Reading aloud is very important for us to learn a foreign language.
Going to bed early and getting up early is considered to be a good habit.★ 在一些句子中，常用it作形式主语放在句首，而把真正的主语放到句末。 如：
It is very important remembering others’ names.
It is no use crying over spilt milk. 二、动词-ing形式作宾语
★ 有些动词后只能跟动词-ing形式作宾语，而不能跟动词不定式作宾语。有此用法的动词有：allow, advise, admit, appreciate, avoid, bear, consider, delay, deny,?enjoy, escape, finish, forbid, imagine, keep, mind, mention, permit, practice, quit, risk, suggest等。My mother advised asking a doctor to come and examine my eyes.
We’re considering paying a visit to the Science Museum. ★ 有些动词后既可跟动词-ing形式作宾语，也可跟动词不定式作宾语，但用法和意义都有所不同。这些动词是：remember, forget, stop, regret, try, mean等。如：
I remember meeting her at a party once.
I want to try playing soccer this spring.stop to do sth. 停下来去做某事
stop doing sth. 停止做某事
mean to do sth. 想要做某事
mean doing sth. 意味着
try to do sth. 努力要做某事
try doing sth. 试着做某事
remember to do sth. 记得要去做某事
remember doing sth. 记得做了某事★ 动词-ing形式用在动词need, want, require等后表示“需要”时，用动词-ing形式的主动形式或者用不定式的被动式表示被动意义。如：
The carpet really wants cleaning. = The carpet really wants to be cleaned.★ 动词-ing形式作介词的宾语。要特别注意：be / get used to, look forward to, pay attention to, stick to, devote to等中的to都是介词而不是动词不定式符号。如：
My father is used to going to bed late and getting up very early.
I’m looking forward to receiving your reply.用动词-ing形式（短语）把下列两个句子
合并成一个句子。
1. You should know the students’ needs and interests.
It is part of a teacher’s job.
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2. Don’t talk with your mouth full.
It is a bad habit.Knowing the students’ needs and interests is part of a teacher’s job.Talking with your mouth full is a bad habit so don’t do it.3. My mother gets up early every morning.
That is a good habit.
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?????????????????????????????????????????????
4. Get all the materials ready before the end of this month.
It is your homework.Getting up early every morning is my mother’s good habit.Getting all the materials ready before the end of this month is your homework.1. _____ your own needs and styles of
communication is as important as learning to
convey your affection and emotions.?
(湖南2014)
A. Understanding ? ?B. To be understood
C. Being understood?D. Having understood
2. One morning, I was waiting at the bus
stop, worried about ?41 ?(be) late for
school.
?（2014新课标全国卷II第二部分第二节）【高考链接】Abeing3. It’s quite hot today. Do you feel like _____ for
a swim?? (陕西2014)
A. to go ? ? ?B. going C. go ? ? D. having goneB如何设计英文海报
?????? 英文海报是人们在日常生活中经常使用的一种招贴形式的应用文。它的使用场合非常广泛，包括活动宣传、招聘广告和人物介绍等。
【写作指导】
1. 明确海报的主题
明确你要写的海报是活动宣传、招聘广告还是人物介绍。写作2. 确定海报的格式
标题：居于海报正上方，用简洁、引人注目的语言概括要宣传的主题。
正文：海报正文没有硬性规定的格式，可以根据海报的内容灵活安排。
①一般来说，海报的最前面要采用一些鼓动性较强的语句来吸引读者的注意力，通常采用排比、反问、设问等修辞手法。②接着列出海报的具体内容：
★ 写活动宣传的海报时，可以先介绍要宣传的活动，再写活动的时间、地点、目的、 活动安排以及主办单位等。
★ 写招聘广告的海报时，先介绍要招聘的职位，然后写对求职者的要求等。
★ 写人物介绍的海报时，可以先把要介绍的人物的名字放在显要位置，然后依次介绍该人物的出生时间、地点、特殊技能等，再简单介绍该人物所从事的职业等。结尾：海报发布时间常写在海报左下角。
注意：
1. 写海报正文部分时，可以列小标题，也可以整段介绍；
2. 英文海报通常含有通知性，所以主题应该明确、一目了然；
3. 英文海报还包含广告的某些特点，要求内容简明扼要，形式新颖美观。1. 用struggle against/struggle to/struggle for的适
当形式完成句子。
Unluckily, the farmers have suffered a heavy drought this year. They have to _____________ a living. They are _________________ the bad weather for a better harvest. Anyway, they are
____________ increase their income. struggle forstruggling againststruggling to一、用所给词的适当形式填空。巩固练习2. 用所给词的适当形式填空。
(1) My brother often regrets not ________ (study) hard at school.
(2) I regret ________ (tell) you that you fail to pass the interview.
(3) Do you have any comments _______ (make) on the recent developments? studyingto tellto make二、利用所学知识完成下面短文。
A woman in Africa 1. ________ (struggle) to balance the huge jug (罐) of water on her head. It is full of 2. ________ (细菌) but it is all she has to drink. Her husband fights to plough the soil to produce food. This 3. ___________ (disturb) picture can be seen in many countries today as millions struggle to be free from hunger. struggles?bacteria?disturbingThe problem is not lack of effort but lack of the right farming conditions and effective methods to grow crops.
?????? 4. ________ (多亏) international aid, many people are beginning to win their daily 5. b________ to produce food. However, there is still a long way to go and we can never be 6. ________ (satisfy) with our progress until we have 7. r____ the world of hunger completely.Thanks tobattle?satisfiedrid三、在空白处填入适当的内容(不多于3个单词) 或括号内单词的正确形式。
The British are known for their sense of humour. However, it is often difficult for 1. __________ (foreign) to understand their jokes. The main thing to remember is that the British like to make jokes about serious situations. Another key to 2. ___________ (appreciate) British humour is to know that the British often use understatement (克制的说法). foreignersappreciatingFor example, if someone gets very wet in a rain shower, he might say, “It’s a little wet outside.” Or, if someone is very rude and shouts at 3. ________ person, someone else might say, “She isn’t exactly friendly.”
The British also find humour in ordinary, boring life, 4. ________ (especial) its negative aspects. another???especiallyAs well as this, they find it 5. ________ (amuse) to tell jokes about things 6. ___________ have gone wrong, rather than not mentioning them in case they look stupid. Their stories might start 7. _____ “I’m such an idiot; I did something really stupid yesterday”.amusingthat / whichwith ?Lots of British humour 8. ________ (base) on word play. It is very easy to “pun (说双关语)” in English because lots of words have more than one meaning or sound like other words. The results are often enough 9. ________ (make) you smile. For example, what do you do if you feel 10. ________ (hunger) when you’re on the beach? Eat the sand which is there. Get it? Sand which is there (sandwiches there).is basedto makehungry Thank you!