新概念英语第二册课件Lesson42（共31页）

这是一份新概念英语第二册课件Lesson42（共31页），共31页。PPT课件主要包含了earth，penguins，Grammar等内容，欢迎下载使用。
Review the questins
Where had the writer had a lng walk? Why did he stp at a square? Wh did he ntice after a time? Hw many baskets did a snake charmer have? What was his pipe cvered with? When did the writer have the first glimpse f the snake? Did the snake rise ut f the basket? What mvement did the snake begin t fllw? What kind f music did the snake charmer play? Hw did the writer feel?
Key structure
have a lng walk thrugh, acrss ntice /see/watch/ hear sb. d / ding sth. at the ther side f , anther, ther, the ther, thers, the thers be cvered with play jazz, play a tune have / catch / get the first glimpse f … rise ut f , raise ne’s hand = hands up cntinue = g n t d sth. tell the difference between… and …
musical adj. 精通音乐的market n. 市场，集市snake charmer 玩蛇者（通常借音乐控制）pipe n. （吹奏的）管乐器tune n. 曲调glimpse n. 一瞥snake n. 蛇mvement n. 动作cntinue v. 继续dance v. 跳舞bviusly adv. 显然difference n. 差别Indian adj. 印度的
Lessn 43Over the Suth Ple
Fur ceans in the wrld
Pacific cean
Indian cean
Arctic cean
Atlanticcean
The map f the wrld
Latin/Suth/Nrth America
What d yu knw abut the Suth Ple
Enjy the stry
Is it easy t fly ver the Suth Ple?
Read and judge
The American explrer, R. E. Byrd, successfully flew ver the Nrth Ple first time.2. Byrd and his were able t bake a lt f phtgraphs f the muntains that lay belw.The plane culd nly get ver the muntains if it rse t 10,000 miles. After Byrd rdered his men t thrw ut tw heavy fd sacks, the plane was able t rise.
Over the suth ple
ple flight explrer lie serius pint seem crash sack clear aircraft endless plain
n.（地球的）极n. 飞行n. 探险家v. 处于adj. 严重的n. 地点v. 似乎v. 坠毁n. 袋子v. 越过n. 飞机adj. 无尽的n. 平原
★ple n.（地球的）极the Suth Ple 南极the Nrth Ple 北极Ple Star 北极星★explrer n. 探险家, 探测者, 探测器explre v.探险, 探测, 探究explratin n.(科研相关)探险,探求,开发adventure n.冒险(追求刺激)venture n. 冒险(为了财富)
★lie v. 处于① vi. 处于,位于(+地点)现在这条山脉正位于我们的下面。The muntains lie belw us nw.小镇位于伦敦的东部The twn lies t the east f Lndn.② vi. 躺，（平）卧躺在床上stay in bed = lie in bed当我坐在篝火旁的时候，我的狗躺在我的旁边。While I sat by the fire, my dg lay beside me.③ vt. 撒谎tell a lie 撒谎Yu lied. = Yu lied t me.你骗人! 你撒谎! Yu,liar! 你, 骗子! ④ n.谎言
★seem v. 似乎，看起来seem + as if 看起来似乎……他看起来似乎以前从来没有在英国居住过。He seemed as if he had never lived in England befre.seem + adj. 他看起来很有钱。He seems rich.seem t beHe seems t be rich.seem that… 看起来似乎……It seems that he is rich.
★clear v. 越过(凌空、不接触地)越过, 跳过，没有接触面的飞跃飞跃山峰clear the muntain那匹马越过了栅栏The hrse cleared the fence. ver adv. 越过(距离)g ver飞跃★plain n. 平原plain girl 平凡的女孩
In 1929, three years after his flight ver the Nrth Ple, the American explrer, R.E. Byrd, successfully flew ver the Suth Ple fr the first time. Thugh, at first, Byrd and his men were able t take a great many phtgraphs f the muntains that lay belw, they sn ran int serius truble. At ne pint, it seemed certain that their plane wuld crash. It culd nly get ver the muntains if it rse t 10,000 feet. Byrd at nce rdered his men t thrw ut tw heavy fd sacks.
The plane was then able t rise and it cleared the muntains by 400 feet. Byrd nw knew that he wuld be able t reach the Suth Ple which was 300 miles away, fr there were n mre muntains in sight. The aircraft was able t fly ver the endless white plains withut difficulty.
1、In 1929, three years after his flight ver the Nrth Ple, the American explrer, R.E. Byrd, successfully flew ver the Suth Ple fr the first time.fr the first time 第一次time表示“次，回”，还可以说this time，last time，next time，anther time，each time，fr the last time我最后一次提醒你，如果你不快点，你就会赶不上火车的。 I remind yu fr the last time that if yu dn’t hurry, yu’ll miss the train.下次你见到他的时候，把这些照片给他。 Give him these phts next time yu see him.
2、Thugh, at first, Byrd and his men were able t take a great many phtgraphs f the muntains that lay belw, they sn ran int serius truble.连词thugh引导让步状语从句，其含义是“虽然……，尽管……”。它永远不与but连用。can...可能性（只用于现在式和过去式）be able t...可能性,成功地做（可用于各种时态）take a phtgraph f… 拍……的照片在他离开家之前，他给他的房子照了张照片。He tk a phtgraph f his huse befre he left hme.run int truble = get int truble 遇到麻烦，陷入困境每次他遇到困难了，他都向父母寻求帮助。Each time he ran int truble, he asked his parents fr help.
3、At ne pint, it seemed certain that their plane wuld crash.at ne pint 在某一地方，在某一时刻（pint也指时间上的某一点）他曾一度下决心要当个画家。 At ne pint, he made up his mind t becme a painter.it为先行主语，真正的主语为that引导的从句。it作先行主语时经常与seem，appear，lk等连用：现在似乎可以肯定会议将被推迟。 It nw lks certain that the meeting is ging t be put ff.
4、It culd nly get ver the muntains if it rse t 10,000 feet.rise t … 上升至……5、The plane was then able t rise and it cleared the muntains by 400 feet.by表示“相差，以……之差”的意思我晚了10分钟，没赶上火车。 I missed the train by ten minutes. 他比我小两岁。 He is yunger than me by tw years.
Key structures
ver, n, abve can, culd, be able t explrer, explsin at first at/in/n a great many lie, lay, lain / lay, laid, laid / lie, lied, lied run int … seem t d sth. / seem t be + adj. / seem + adj. / It seems that rise, raise by in sight / ut f sight withut difficulty
Can 和be able t 1.can和culd 我们已经讲过can和culd都可以表示“请求允许做某事”，can比较生硬，用于和自己同等的人或是熟悉的朋友。而culd相对比较客气，显得更加礼貌，同时也反映出请求者的犹豫不决。 Can I use yur telephne? 我能用一下你的电话吗？ Culd I use yur telephne? 我能用一下您的电话吗？ 2.can和be able t can和be able t都可以解释为“能够、可以”。可以表示“有能力来做某事、有时间来做某事，有办法来完成某事”等等。我们在区别他们时，需要注意的
a.在表示现在或过去的智力、体力、技能等方面的“能力”时,can、culd常可与 be able t互换。 I can swim nw.=I am able t swim. 我会游泳。 b. can表示“能够做某事”，不一定就真的做了。而be able t表示“有能力做某事”。说明是真的尝试过了，做过了这件事情。所以赶拍胸脯说自己有这个能力。比如： I can swim 300 meters nw and last year I was able t swim 100 meters. 我现在能够游300米，去年我可以游100米的。 这句话中，第一部分“I can swim 300 meters nw”，表示“我现在能够游300米”只是说说而已，并不说明已经游过了。而后面部分“last year I was able t swim 100 meters”，表示我去年的确是游过了，可以游100米的。
c. be able t 有比 can 更多的形式。从时态上来说：can做为情态动词，只有现在时和过去时。而be able t则有比can更多的形式，除了现在时和过去时，还有将来时和完成时。 He will cme if he can.=He will cme if he is able t. I can see yu tmrrw.＝I’ll be able t see yu tmrrw.（将来时使用will be able t结构） I culdn’t understand him.=I wasn’t able t understand him.（过去时使用was/were able t结构） He said he culd see me next week.=He said he wuld be able t see me next week.(过去将来时使用wuld be able t结构) 请大家注意，如果要体现将来时和完成时，那只能用be able t。因为can作为情态动词只有现在时和过去时。
综合上面的几点，我们简单总结一下： can和be able t在表示个人能力时，一般可以进行互换。 Can表示“能够做某事”，是未经尝试过的能力；而be able t则多表示“有能力做某事”多为已经过事实验证的。 Can用于现在时和过去时；而be able t由于有个be动词，所以它时态的使用就灵活了许多，将来时、完成时等时态用be able t表示则非常清晰方便。 下面最后一点： 当我们要表示一个动作已经成功的在过去完成的时候，我们必须使用was able t，而不能使用culd。
He was able t g t Lndn yesterday and he enjyed himself very much. 他昨天去了伦敦，玩得非常高兴。 He didn’t agree with me at first but I was able t persuade him. 他开始不同意我的观点，但我最终说服了他。 He was able t leave Eurpe befre the war began. 他在战争开始之前得以离开欧洲。
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