2017_2018学年高中英语unit22environmentalprotectionsectionⅲ课件北师大版选修8

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1、Section Lesson 3 Natural Disasters,一,二,三,四,一、词义匹配 A B ( )1.grand a.a sudden event that causes many people to suffer ( )2.arm b.impressive and large or important ( )3.means c.to provide weapons for yourself/sb.in order to fight a battle or a war ( )4.catastrophe d.to slide a short distance by acciden

2、t so that you fall or nearly fall ( )5.slip e.to leave a person or place very quickly,especially because you are afraid of possible danger ( )6.flee f.an action,an object or a system by which a result is achieved;a way of achieving or doing sth. 答案:1.b 2.c 3.f 4.a 5.d 6.e,一,二,三,四,二、猜词拼写 1. a fine po

3、wder that consists of very small pieces of sand,earth,etc. 2. to turn over and over and move in a particular direction;to make a round object do this 3. a violent tropical storm with very strong winds 4. the total amount of rain that falls in a particular area in a particular amount of time 5. happe

4、ning or existing in the sea,not far from the land 6. the possibility of sth.happening or being developed or used 7. to make a long,loud cry,dust,roll,typhoon,rainfall,offshore,potential,howl,一,二,三,四,8. used for building walls,houses and other buildings;an individual block of this,brick,一,二,三,四,三、词汇拓

5、展 1.changeable的动词 vt.改变 2.irrigation的动词 vt.灌溉 3.rough的副词 adv.艰难地 4.separation的动词 vt.使分开 5.construct的名词 n.建造 6.mountainous的名词 n.山,change,irrigate,roughly,separate,construction,mountain,一,二,三,四,四、单句填空 1.A new bridge (build) over the river will be open next year. 2.The topic (discuss) tomorrow is about

6、 how to protect the environment. 3.Im sorry,but my computer (repair) at the present. 4.The novel (translate) into many kinds of languages so far. 5.The thief went into the forest to avoid (catch) by the villagers.,being built,to be discussed,is being repaired,has been translated,being caught,1,2,3,4

7、,5,6,1.The last few years have seen environmental disasters on a grand scale,and experts are predicting far worse to come.(Page 10) 最近的几年发生了大规模的环境灾难,专家们预测更为严重的灾难即将发生。 考点 句中the last few years作主语,是一种拟人的修辞手法,使行文生动活泼。 The last three months have seen your rapid progress in learning English.你在最近三个月的英语学习中进

8、步迅速。 The next few years saw a series of bad harvests. 接下来的几年里粮食连年歉收。 A cold winter morning found an old man lying in the street. 一个寒冷的冬天的早晨,一个老人躺在街上。 归纳总结常用于这种用法的动词有see,witness,find等。,1,2,3,4,5,6,1,2,3,4,5,6,1,2,3,4,5,6,1,2,3,4,5,6,2.Storms have been getting worse everywhere too,with a growing numbe

9、r of hurricanes hitting the US,and Central America.(Page 10) 暴风雨在各地愈发肆虐,越来越多的飓风袭击美国和中美洲。 The population of the world is growing at the disturbing rate of 10,000 people an hour,nearly 90 million a year,with most of the growth in the developing world.(Page 10) 全世界人口正在以每小时10,000人的令人不安的速度增长,每年接近9000万人,而

10、大多数新增长的人口来自发展中国家。,1,2,3,4,5,6,考点 以上两个句子中,都运用了with的复合结构,在第一个句子中,动词-ing短语作宾语补足语;在第二个句子中,介词短语作宾语补足语。 With the boy leading the way,we found his house easily. 由这个男孩带路,我们很容易就找到了他的家。 The teacher came in with a book in his hand. 这位老师手里拿着一本书进来了。,1,2,3,4,5,6,考点延伸 阅读下列句子,指出黑体部分的结构 With all the work finished,th

11、e young man decided to go on a holiday. 结构 with+宾语+done With so many emails to answer,the girl was upset. 结构 with+宾语+to do The young man liked going to sleep with all the windows open. 结构 with+宾语+形容词,1,2,3,4,5,6,常见的with的复合结构: with+宾语+doing with+宾语+介词短语 with+宾语+done with+宾语+to do with+宾语+形容词,1,2,3,4,

12、5,6,(3)他去世的时候,女儿还是个学生。 He died . (4)他离开了房间,灯还开着。 He left the room . (5)随着时间的流逝,他们都长成小伙子和大姑娘了。 ,they have grown into big boys and big girls.,1,2,3,4,5,6,(6)他把外套搭在胳膊上走下楼来。 He came downstairs . 单句填空 (7) two exams to worry about,I have to work really hard this weekend. (8)With prices (go)up so fast,we c

13、ant afford luxuries. (9)I sat in my room for a few minutes with my eyes (fix)on the ceiling. (10)With so many books (choose) from,he eventually found what he had been dreaming of. (11)With much homework (do),all the students will have to stay in their classroom for another 45 minutes.,1,2,3,4,5,6,单句

14、改错 (12)The old couple often take a walk after supper in the park with their pet dog followed them. (13)The street was quiet with no buses were running. (14)In came a man with his hand being tied back. (15)With the car broken down halfway on the road,we had great difficulty walking home in the snow.

15、答案:(1)With her money lost (2)With your help (3)with his daughter a student (4)with the light on (5)With time passing (6)with his coat over his arm (7)With (8)going (9)fixed (10)to choose (11)to do (12)followedfollowing (13)去掉were (14)去掉being (15)brokenbreaking,1,2,3,4,5,6,3.A number of nations have

16、already been in armed conflict over water,and reduced rainfall in the west of the US has resulted in huge forest fires.(Page 10) 已经有几个国家因为水的问题而动武,而美国西部由于降水减少导致了森林大火。 考点 result in 导致 【高考典句】(2017全国高考)But we all have to accept that as we get older our reactions slow down and this often results in people avoiding any potentially challenging driving conditions and losing confi

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