新概念英语第二册课件Lesson43（共38页）

这是一份新概念英语第二册课件Lesson43（共38页），共38页。PPT课件主要包含了penguins，Flight 飞行，Grammar等内容，欢迎下载使用。
The map f the wrld
Latin/Suth/Nrth America
What d yu knw abut the Suth Ple
Over the suth ple
the suth ple 南极
explrer 探险家
Serius 严重的
endless plain
1. 波兰人Pland 波兰2.极Ple Star 北极星the Suth Ple 南极；the Nrth Ple 北极3.电极，磁极the psitive plethe negative ple4.杆 棒 柱a flag ple
flight n. 飞行 航班
Eg. All flights are cancelled because f the fg.fly v. 飞 fly ----flew----flwnfly n 苍蝇
explrer n. 探险家, 探测者, 探测器
explre v.探险, 探测, 探究explre the virgin frestexplratin 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,没有生命保障)
★lie v. 处于① vi. 处于,位于(+地点)The twn lies t the east f Lndn.② vi. 躺，（平）卧stay in bed = lie in bedWhile I sat by the fire, my dg lay beside me.③ vt. 撒谎Yu lied. = Yu lied t me.你骗人! 你撒谎! Yu,liar! 你, 骗子! ④ n.谎言 tell a lie 撒谎a white lie 善意的谎言a black lie
lay （laid,laid）① vt. 放,放置② vt. 下蛋, 产卵lay an egg 下一个蛋hang（hung，hung） 挂,悬挂hang（hanged，hanged） 绞刑
pint n 1. 尖端A knife-pint 2.点，一般指从飞机上向下看的点地点 place，spt sina.cm中的 “.” 读为dt（点）@读为at3. V 指 指向pint at/t 指向
★seem v. 似乎，看起来seem + as if 看起来似乎……He seems 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.
crash v. 坠毁（从上向下掉）；
n. 冲突, 撞击声, 抵触 aircrash 空难 ， carcrash 车祸strike v. 撞击cllide vi.碰撞, 抵触(两个都运动的东西相撞)
1.袋子 购物袋A sack f rice2. 解雇get the sack
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clear up 天空放晴clear away 消除
hpelesshelplesstreeless carelessuselessplain n 平原adj 普通的a plain girl
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? Culd I use yur telephne? 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。
听录音，然后回答以下问题。 Hw was the plane able t clear the muntains?
The American explrer rdered his men t thrw ut tw heavy fd sacks s the plane rse t10000 feet.
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 1 “次，回”，还可以说this time，last time，next time，anther time，each time，fr the last timetime 2 倍，倍数 I remind yu fr the last time that if yu dn’t hurry, yu’ll miss the train. The river is three times lnger than that ne.
（1）这句话包含两个同位语。three years after…为 1929的同位语，作插入性的补充说明；R．E．Byrd 作 the American explrer 的同位语。
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.