1、必修二第四单元适用学科 英语 适用年级 高一适用区域 人教版教材 课时时长（分钟）2 课时知识点 本单元重点单词本单元重点词组本单元重点句子教学目标 知识：1、掌握本单元重点单词。2、掌握本单元重点词组。3、掌握本单元重点句子。方法：结合实例，掌握单词的用法教学重点 词语辨析1. contain / include 2. reserve / keep / preserve3. reduce / decrease4. fierce / wild / violent词形变化1. power n. 能力 powerful adj. 强有力的; 力量大的 powerfully adv. 强有力地; 力
2、量大地2. appreciate v. 理解并欣赏; 赏识; 高度评价 appreciation n. 欣赏; 感激 appreciative adj. 有欣赏力的; 表示赏识的; 感激的3. succeed v. 成功; 做成 ; 达到目的 success n. 成功; 成就; 成名; 发财; 胜利; 达到目的 successful adj. 获得成功的; 取得成效的;达到目的的重点单词1. wild adj. 野生的, 野的, 未驯化的；无居民的, 荒凉的2. die out（指物种）死光；灭绝, 火慢慢熄灭3. hunt vt. 猎取; 搜索4. distant n. （空间或时间）远隔
3、的, 遥远的5. mercy n. 仁慈 ; 宽恕; 宽容; 恩惠; 幸运重点词组1. pay attention to 注意2. die out（指物种）死光；灭绝, 火慢慢熄灭3. come into being 形成；产生（不可用于被动语态或进行时态）重点句子1. She turned around and there was an antelope with a sad face looking at her.2. They set the number of animals to be hunted.教学难点 1、单词，短语正确使用2、单词短语辨义的考点及易错点教学过程一、课程导入本
4、单元我们将在原有知识的基础上学习新的单词和词组，扩大词汇量和知识面，进一步提高英语水平。英语学习需要从“听说读写”各个方面着手，提高整体运用能力。二、复习预习教师引导学生复习上节课所学的知识点， （以提问、回顾的形式进行） ，针对上节课的作业进行讲评、订正、答疑三、知识讲解知识点 1：词语辨析【考查点】词形变化1. power n. 能力 powerful adj. 强有力的; 力量大的powerfully adv. 强有力地; 力量大地2. appreciate v. 理解并欣赏; 赏识; 高度评价appreciation n. 欣赏; 感激appreciative adj. 有欣赏力的;
5、表示赏识的; 感激的3. succeed v. 成功; 做成; 达到目的 success n. 成功; 成就; 成名; 发财; 胜利; 达到目的successful adj. 获得成功的; 取得成效的; 达到目的的【练习】用括号内所提供词的适当形式填空1) I will do everything in my _ to help you. (power)2) He is very _ built. (power)3） Elephants have _ legs. (power)4） She shows little or no _ of good music. (dusk)5） Your he
6、lp was greatly _. (dusk )6） Im most _ of your generosity. (add)7) He wasnt a _ as a teacher. (add)8) If at first you dont _, try, try again. (add)9) My final attempt to fix it was _.Keys: 1) power 2) powerfully 3) powerful 4) appreciation5) appreciated 6) appreciative 7) success 8) succeed9) success
7、ful知识点 2：词语辨析1. contain / include【解释】contain 强调主语含有某种成分或装有某物。如：include 强调主语包含的人或物是主语的一部分。所以 include 常译为“包括”。including“包括”, 是十分常见的表达形式。【练习】用上面所提供的辨析词的适当形式填空1). The list _ his name.2). Beer _ alcohol.Keys: 1). included 2). contains 2. reserve / keep / preserve【解释】reserve 正式用词，指为了将来的用途或其他用途而保存、保留。keep
8、最常用词，指长时间牢固地保持合伙保存。preserve 主要指为防止损害、变质等而保存。【练习】用上面所提供的辨析词的适当形式填空1). Will you _ these documents for us?2). In summer, large crops of fruit may be _ by freezing.3). All the front seats are _ for foreign guests.Keys: 1). keep 2).preserved 3). reserved3. reduce / decrease【解释】reduce 强调在“ 数量、大小，程度或强度”方面下
9、降或减少。decrease 侧重强调“稳定地，逐渐地，不断地”减少【练习】用上面所提供的辨析词的适当形式填空1). The workers _ their wage demands.2). Lack of success _ confidence.Keys: 1). reduced 2). decreased4. fierce / wild / violent【解释】fierce 指人或兽的凶猛残酷。wild 既可指自然界的荒芜，未被驯化状态，又指人的无法无天，不文明的野蛮行为。violent 指人时侧重极为不安、异常激动，暗含有暴力行为；也指破坏性的或不可控制的自然力量。【练习】用上面所提供
10、的辨析词的适当形式填空1). She is afraid of his _ looks.2). Who was that _ old lady?3). _ criminals like that are a danger to society.Keys: 1). wild 2). fierce 3). violent知识点 3：重点词汇1. wild adj. 野生的, 野的, 未驯化的；无居民的, 荒凉的典例 1). He enjoys filming wild animals. 他喜欢拍摄野生动物。2). We walked into a wild mountain region. 我们走
11、进荒无人烟的山区。重点用法be wild about sth/sb（对某事物某人）极热心或热爱be wild with 因而发狂练习 中译英1). 群众欣喜若狂。_2). 孩子们都特别喜欢这个新计算机。_Keys: 1). The crowd went wild with delight.2). The children are wild about the new computer.2. relief n. （痛苦 困苦 忧虑等的）减轻或解除典例 1). The drug gives some relief from pain. 这种药可以减轻一些痛苦。2). I breathed/heav
12、ed a sigh of relief when I heard he was safe. 我听到他平安的消息时才松了一口气。重点用法(much) to ones relief 使某人大为放心；使某人深感宽慰练习 中译英1). 我最庆幸的是没有迟到。_2). 见到你在这儿也就放心了。_Keys: 1). To my great relief/Much to my relief, I wasnt late. 2). Its a great relief to find you here. 3. hunt vt. 猎取; 搜索典例 1). Wolves hunt in packs. 狼是成群猎食的
13、。2). Police are hunting an escaped criminal. 警方正在追捕逃犯。重点用法hunt for 试图找到（某物某人 ）hunt after 探求；追求练习 中译英1). 我在寻找一本失去的书。2). 许多人一生追求成名，但一无所获。Keys: 1). I am hunting for a lost book.2). Many people hunt after fame in their lives but never find it.4. distant n. （空间或时间）远隔的, 遥远的典例 1). The airport is about ten
14、miles distant from the city. 机场距离城市大约十英里远。2). She is a distant cousin of mine. 她是我的远房表妹。重点用法be distant with / towards with sb. 对冷淡练习 中译英1). 这两种学说之间没有什么关联。_2). 她对妈妈总是很冷淡。_Keys: 1). There is a distant connection between the two theories. 2). She is always distant with her mother.5. mercy n. 仁慈 ; 宽恕; 宽
15、容; 恩惠; 幸运典例 1). They showed mercy to their enemies. 他们对敌人很仁慈。2). Its a mercy she wasnt hurt in the accident. 她在事故中未受伤, 真幸运。重点用法at the mercy of sb/sth 任由某人某事物摆布或控制have mercy on / upon 对有怜悯心练习 中译英1). 那只船在暴风雨中失去控制_2). 可怜可怜我们吧。_Keys: 1). The ship was at the mercy of the storm.2). Have mercy on us!知识点 4：
16、重点词组 1. pay attention to 注意典例 1). Please pay attention to what I am saying. 请注意我说的话。2). She turned her attention to a new problem. 她把注意力转移到一个新问题上。短语归纳catch sbs attention 吸引某人的注意 draw attention to sth. 注意某事物give ones attention to 注意 练习 中译英1). 报纸的大标题引起他的注意。_2). 她要我注意报告中的一处错误。_Keys: 1). A newspaper hea
17、dline caught his attention. 2). She drew my attention to an error in the report.2. die out（指物种）死光；灭绝, 火慢慢熄灭典例 1). The moths habitat is being destroyed and it has nearly died out. 这种蛾子因栖息地正受到破坏, 几乎绝种了。短语归纳die away 减弱（以至觉察不到） ；淡化 die down 逐渐降低；减弱be dying 垂死的 be dying for/to do sth.渴望die of 死于（饥饿；病） di
18、e from 死于（外界引起的）die hard 很难改变；顽固练习 用 die 构成的词组填空1). The noise of the car _ in the distance.2). The old traditions are _.3). The man _ a wound 4). Im _ something to eat. Keys: 1). died away 2). dying out 3). died from 4). dying for 3. come into being 形成；产生（不可用于被动语态或进行时态）典例Dinosaurs lived on the earth
19、 tens of millions of years ago, long before humans came into being.千百万年前，恐龙就在地球上生活，比人类的出现要早得多。短语归纳come into effect 实施 come into use 投入使用come into power 上台执政练习用 come 的相关词汇填空1). When did the world _? 2). The new seat-belt regulations _ last week. 3). When did this word _?Keys: 1). come into being 2).
20、came into effect 3). come into use知识点 5：重点句子1. She turned around and there was an antelope with a sad face looking at her.她转过身看到一只羚羊带着忧郁的神色望着她。解释此句可改成：She turned around and there was an antelope which was looking at her with a sad face.“with a sad face looking at her” 为 with 的复合结构，即 with +名词、代词（介词宾语
21、）+v.-ing（宾补） 。可充当宾补的还有分词、不定式、形容词、副词及介词短语。简单总结为：with +宾语+-v.-ed /v.-ing /to do ）作伴随状语或定语典例With some students following behind, he came in.练习 中译英1). 站着的时候不要把手插在口袋里。_2). 新老板很担心，因为有很多事要处理。_Keys:1). Dont stand with your hands in your pockets.2). With a lot of thing to be solved, the new boss worried a lo
22、t.2. They set the number of animals to be hunted. 他们拨出一定数量的动物供人们捕猎。解释to be hunted 为动词不定式的被动式，在此作 animals 的后置定语。不定式作定语时，在句中如果能找到不定式动作的执行者，常用不定式的主动式，找不到时常用不定式的被动式。典例The first thing to be done is to tidy up the office.The first thing for you to do is to tidy up the office.练习 中译英1). 在我们出发之前，这辆车必须修理一下。_2
23、). 会议明天举行。_Keys:1). The car needs to be repaired before we start.2). The meeting is to be held tomorrow.四、例题精析【例题 1】根据课文内容完成下面语法填空，注意单词拼写和词语用法：Daisy desired to help 1 (endanger) species of wildlife because a large number of animals are dying 2 . One day, a flying carpet took her to a 3 (遥远) land, 4
24、she could find antelopes 5 gave fur to make sweaters. Then she met an elephant in Zimbabwe and was told that elephants used to be hunted without 6 . But now people know the 7 (重要) of wildlife 8 (protect).答案： 1. endangered 2. out 3. distant 4. where 5. that/which【例题 2】阅读课文，试着用 30 个单词概括课文大意，再比较答案文章讲述了
25、 Daisy 的经历。她到西藏，津巴布韦和热带雨林游览，在那她发现一些动物濒意识到临灭绝，由此她保护动物的重要性。The passage tells us _答案：The passage tells us Daisys experience . She visited Tibet, Zimbabwe and a rainforest, where she found that some animals are in danger and realized the importance of protecting animals. 五、课堂运用【基础】1. 【原句】Please take me
26、to a distant land where I can find the animals that gave fur to make this sweater. 请带我到遥远的地方，在那里我可以发现为制作这件毛衣而提供毛绒的那种动物。模仿要点 句子结构 : 定语从句 1 （where）+ 定语从句 2 【模仿 1】我知道有这么一个地方盛产西瓜，而且西瓜含糖高。_答案：I know there is a place where you can find watermelons everywhere which is sugary. 【模仿 2】我们已经处于这样的处境- 我们不得不马上解决我们
27、面临的问题。_答案：We are put into such a position where we have to solve the problems which we are faced with. 【巩固】【原句】They lived on the earth tens of millions of years ago, long before humans came into being. 千百万年，恐龙就在地球上生活，比人类的出现要早得多。模仿要点 句子结构 : + long before.【模仿 1】: 早在你告诉我之前很久我就知道他们被邀请来参加晚会的消息。_答案：I knew the news that they were invited to the party, long before you told me. 【模仿 2】在我认识他们之前的很久他们就互相认识了。_答案：They had known each other long before I knew them. 课程小结本节课主要围绕重点词汇和短语进行考查结合近几年的高考对于词汇的考查往往是与语境想结合，因此，同学在做题时要结合语境来分析题目，灵活地运用语法知识
