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高二英语人教课标选修6 unit 4 global warming 重点难点及考点解析

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学案2 Unit 4 Global Warming 重点、难点及考点解析 一、重点单词 1．compare 1．vt. 比较；对照。如： Compare your answers with those at the back of the book to see if they are right. 把你的答案同书后面的答案对照一下，看看是否正确。 My handwriting can not be compared with my father‟s. 我的书法不能与我父亲的相比。 2．vt. 喻为；比拟。如： Man‟s life is often compared do a candle. 人生常被比为蜡烛。 Shakespeare compared the world to a stage. 莎士比亚把人世比做舞台。 compare…with…表示“把……与……相比（同类相比）” compare…to… 表示“把……比做……（异类相比，比喻）” compared to /with 与……相比, 只能作状语 2．amount n. 数量 习惯用语： an amount of 相当数量的; 一些 修饰不可数名词 amounts of 相当数量的; 一些 修饰不可数名词 large amounts of money 大量的金钱 3．concern ① v.使担心；使关心；使烦恼

The boy's poor performance at school concerned his parents. 这个男孩在学校很差的表现，使他父母很担心。 注意：其过去分词concerned通常作形容词用，意为“担心的；烦恼的；忧虑的”。

The concerned parents were all concerned for the children's safety. 忧心忡忡的家长们都为孩子们的安全担忧。 ②涉及；与……有关或相关

Attend to what concerns you. 注意与你有关的事物。 注意：其过去分词concerned常用来作表语，意为“和……有关；牵涉”；而作定语，则意为“有关的”。 It is reported that the pop singer is concerned with selling drug. 据报道，那个流行歌手涉嫌贩毒。 He asked all concerned to take an active part in helping the girl. 他要求所有相关的人积极帮助那个女孩。

②、concern作名词 1. 有关……的事（可数） That's my concern, so I'll do as I like about it. 那是我的事，因此，我想怎么做就怎么做。 1．关怀；关心（不可数） Some people don't show much concern for our environment. 有些人不太关心我们的环境。 3．担心；担忧 She showed great concern about you. 她很为你担心。 4. range range v.排列, 使成行；偏袒，站在…的方面。 n. ：范围(尤指从…到…各种种类,可供选择的范围等，可加不定冠词) ；排列 beyond the range of… 超越……的范围 out of one‟s range 某人达不到的 这家商店商品品种多。 The shop keeps a wide range of goods. v.排列, 使成行；偏袒，站在……的方面。 主要搭配为：+名词/代词；+介词+名词/代词； 常可用于: 1. 被动结构 2. range oneself； 3. range from… to … / between…and … 从……到……不等。 老师令其学生沿着小径排队。 The teacher _________________along the path. 温度在15度到35度之间。 The temperature__________________________. 我们应当列身于法律与秩序的一边。 We should __________________ on the side of law and order. Keys：ranged his students；ranges from 15 to 35 degrees；range ourselves 二、重点短语 1 come about come about 发生，造成 相当于happen When Mother woke up, she didn‟t know what had come about. I‟ll never understand how it came about that you were late three times a week.

Do you know how the air accident came about? 2．keep on 继续 +doing sth. 他们虽然很累了，还是继续工作。 They keep on working although they are tired. 3．build up 逐步建立，增加，增进 build up one‟s fortune build up one‟s strength build up the business This built up my hope after the interview. Sediment (沉淀物)builds up on the ocean floor. 4．make a difference make a difference(1)有很大差别, 有很大不同(2)有很大的关系/影响 make some/ no difference to对...有些/没有关系 That makes no difference to me. 那对我没有影响。 Exercise can make a great difference to your health. 锻炼对你的健康产生很大的影响。 5. put up with put up with 忍受;忍耐;受苦 That woman, as a housewife, has a lot to put up with. 作为家庭主妇,那女人得忍受很多烦恼。 知识拓展 put aside 节省(钱、时间);储蓄;把……放在一边 put away 收拾起来;储存(钱);喝掉 put back 放回原处;拖延 put down 写下;记下;控制 put forward 提出(意见、建议);推荐 put off 延期;推迟 put on 假装;增加;上演(戏剧) put out 熄灭;使忧虑;扑灭;出版 put up 举起;张开(伞);张贴;为……提供食宿 6. so long as / as long as as long as 只要，如果 As long as there is life there is hope. 留得生命在,不怕没希望. You can go out, as / so long as you promise to be back before 11 o'clock. 你可以出去,只要你答应在11点以前回来. I'll accept any job as / so long as I don't have to get up early. 只要不必早起,任何工作我都可以接受. 在用as / so long as连接的从句中,当其谓语为be,而主语和主句的主语相同时,则从句的主语和be可以省略。如: I'm sure we are safe as long as (we are) in his care. 我深信只要在他的保护下,我们就会平安无事. 三、重点句型 1．What do you think green house gases do? 本句中think后接了一个由what引导的宾语从句。但应注意的是：特殊宾语从句即当一般疑问句主句的谓语动词是 think, believe，suppose，consider, imagine，guess 和 suggest 等时，表疑问的词要放在主句前即句首。例如： [正] Who do you think will win in the game? [误] Do you think who will win in the game? 当然一般情况下宾语从句的疑问词应放在主句之后，例如： [误] Why do you know we can't cut down the big tree? [正] Do you know why we can't cut down the big tree? 2．There is no doubt that…. 一、作不可数名词,作"疑惑;怀疑” ①肯定句中doubt多接whether (一般不用if代替) 同位语从句。如: There's some doubt whether he'll keep his promise. 他会不会信守诺言还难说。

She had her doubts whether the new book would sell well. 她怀疑新书是否会畅销。 ②否定句中doubt多接that同位语从句。如: There is no doubt that they will ask you for help. 毫无疑问,他们会请你帮忙的。 I have no doubt that you will succeed. 我毫不怀疑你会成功的。 二、作及物动词常用于下列句型中,作"怀疑;不能肯定;不大相信"解,一般不用进行时态。 ①用于否定句或疑问句,后接that引导的宾语从句。如: I don't doubt that he is telling the truth. 我毫不怀疑他在讲真话。 Do you doubt that he will win the match? 你怀疑他会赢这场比赛吗? ②用于肯定句,一般接whether 或if引导的宾语从句.如: I doubt whether we will make a profit out of it. 我认为我们不可能从此事中获利。 We doubt if she will be persuaded. 我们不知道她会不会被说服。 3．Some byproducts of this process are called “greenhouse” gases, the most important one being carbon dioxide. the most important one being carbon dioxide 是一个独立主格结构，由名词+分词构成，在句中做补充说明或伴随的状况。 ________________(时间允许的话)，I will show you around the city. _________________(今天是星期天)，I don‟t have to go to work. ___________________________(没有人要说的话)，the meeting was closed. Keys：Time permitting；Today being Sunday；Nobody having any more to say 4．Without the „green house effect‟，the earth would be about thirty-three degrees Celsius cooler than it is. 这是一个含蓄虚拟条件句有时假设的情况并不以条件从句形式表示出来，而是通过一个介词短语或其他方式表示。常用的词或短语有：without, but for，but that，otherwise，or，but等。 Without your help ( = If we had not had your help)，we could not have succeeded． 要是没有你的帮助，我们是不会成功的。 四、 疑难辨析 1．result in/ result from ①result in 结果; 致使; 导致

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高二英语 课件 Unit 4 Global warming-Writing (新人教版选修6)

高二英语 课件 Unit 4 Global warming-Writing (新人教版选修6)


The environment faces air pollution, global warming, acid rain, and several other very serious problems because of our use of fossil fuels. Over the last 150 years, burning of fossil fuels has resulted in more than 25 percent increase in carbon dioxide in our atmosphere.
高二选修6 Unit 4
Writing
READING TASK
Answer key for Exercise 1: 1 the main point of view to be circled: All
sorts of items become litter, but two of the most common and most dangerous are cigarette butts and plastic bags.
Step 4: Write out the topic sentence of the second body paragraph. Step 5: Give the supporting points and details about the second subtopic. (more body paragraphs ...)
chemicals add up to a great
amount.
Third
Second Plastic bags are a
Paragraph point of the danger to the
2012版高中英语全程复习方略配套课件：Unit4《Global warming》(新人教版选修6)

2012版高中英语全程复习方略配套课件：Unit4《Global warming》(新人教版选修6)


It is OK to leave an electrical appliance on so long as you are
using it（只要你在用它）—if not, turn it off!
5. it作形式主语，代指不定式的用法 It takes a lot of energy to make things from new materials （将新材料制成物品）, so, if you can, buy things made from recycled materials.
【解析】选 B。句意：全球变暖的原因是人类行为所致而不 是一种随意的自然现象。 rather than 而不是； other than 除
了；more than不仅仅，多于；less than少于。
2. All scientists _____ the view that the increase in the earth’s temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy. A. contribute to C. object to B. lead to D. subscribe to
Ⅳ. 教材设题 1. It is human activity that has caused this global warming _____ a random but natural phenomenon. A. other than B. rather than
C. more than
D. less than
driving licence reached 200, 000, a（n）______ of 40, 000 per
新教材高中英语选修6Unit 4 Global warming

新教材高中英语选修6Unit 4 Global warming


赶上
②catch up with
赶上
③end up with
以……结束
④come up with
提出
⑤put up with
忍受；容忍
⑥be fed up with
受够了
2.“be＋v.－ed＋to”短语荟萃
①be opposed to
反对；与……对立
②be attached to
附属于
③be accustomed to
习惯于
④be addicted to
沉溺于
⑤be devoted to
奉献
⑥be sentenced to
被判处
(三)重点句式——背熟巧用
句型公式
教材原句
句型 1：There is no
doubt that...毫无疑
_T__h_e_r_e_i_s_n_o__d_o_u_b_t_t_h_a_t_ the earth is becoming warmer... 毫无疑问，地球正在变暖……
long as 意为 — if not, turn it off!
“只要”，引 只要你在使用电器设备，你就可以让它开着——如果不用，就把它关
导条件状语从 掉！
句
It is OK to leave an electrical appliance on so long as you are using 句型 4：if not
新教材高中英语必修6 Unit 4 Global warming
01
教材梳理 自测自评
02
考点串讲 重难突破
03
高效演练 跟踪检测
04
课后达标检测
(一)重点词汇——分类记忆 Ⅰ.阅读词汇——知其意 1．graph n. 2．renewable adj. 3．phenomenon (复数－ena) n.
高二英语人教版选修6教案+Unit4GlobalwarmingPeriod2.doc

高二英语人教版选修6教案+Unit4GlobalwarmingPeriod2.doc

Period 2Language Study整体设计教学内容分析The emphasis of this period will be placed on the important new words，phrases and sentence patterns in Warming Up，Pre－reading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language.There are altogether 53 new words and phrases in these five parts.20 of them are marked with triangles，which shows that the students needn't learn them by heart.It is enough to recognize them when meeting them while reading the passage.The other 33 should all be remembered，among which the following words and expressions are even more important：tend，range，subscribe to，go up，widespread，state，glance，steady，tendency，keep on，on the whole，quantity of，be opposed to，come about，result in，even if.They are all very useful and important.So are the sentence patterns “...it is a rapid increase when compared to other natural changes.” and “There is no doubt that the earth is becoming warmer...” We ought to pay more attention to them.三维目标设计Knowledge and skills1．To get the students to learn to use the following important new words and phrases freely：tend，range，subscribe to，go up，widespread，state，glance，steady，tendency，keep on，on the whole，quantity of，oppose，come about，result in，even if.2．To get the students to understand and use the following important and useful sentence patterns：(1)．..it is a rapid increase when compared to other natural changes.(2)There is no doubt that the earth is becoming warmer...Process and methods1．To help the students to understand the meanings of the above useful new words and expressions in the context，and then give some explanations about them，and at last offer some exercises to make students master their usages.2．To ask the students to make up their own sentences by imitating the above sentence patterns.3．At the end of the class，make students do more exercises for consolidation.In doing so，they can learn，grasp and use these important language points well.Emotion，attitude and value1．To stimulate students' interest in learning English.2．To develop students' sense of cooperation and teamwork.教学重、难点1．Important new words and expressions：quantity of，oppose，come about，result in，even if.2．Important and useful sentence patterns：(1)．..it is a rapid increase when_compared_to other natural changes.(2)There_is_no_doubt_that the earth is becoming warmer...3．Some difficult and long sentences in the text.教学过程Revision1．Check the homework exercises.2．Ask some students to talk about global warming.Reading and findingGet students to read through Warming Up，Pre－reading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language to underline all the new words and useful expressions or collocations in these parts.Read them aloud and copy them down in the exercise book.Practice for useful words and expressions1．Turn to Page 28.Go through the exercises in Discovering useful words and expressions with students and make sure they know what to do.2．Give them several minutes to finish the exercises.They first do them individually，and then discuss and check them with their partners.3．Check the answers with the whole class and explain the problems they meet where necessary.Vocabulary studyⅠ.简单知识扫描1．tend(P26)【原句再现】It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.这意味着更多的热量被困在大气层中，从而引起全球温度上升。