★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 before. seem + adj. eg.He seems rich.
seem to be eg. He seems to be rich.
seem that… 看起来似乎…… eg.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
collide vi.碰撞, 抵触(两个都运动的东西相撞) [k??laid]
★clear v. 越过
clear v. (凌空、不接触地)越过, 跳过，没有接触面的飞跃 clear the mountain 飞跃山峰
The horse cleared the fense. （fense n.篱笆,栅栏,墙 v.围住,防护） over adv. 越过(距离) go over飞跃 ★plain n. 平原
plain girl 平凡的女孩 I'm a plain girl. mountains n. 高山
【课文讲解】
1、In 1929, three years after his flight over the North Pole, the American explorer, R.E. Byrd, successfully flew over the South Pole for the first time. for the first time 第一次（time表示―次，回‖，还 可以说this time，last time，next time，another time，each time，for the last time等）
I remind you for the last time that if you don‘t hurry, you‘ll miss the train. Give him these photos next time you see him.
2、Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble.
连词though引导让步状语从句，其含义是―虽然……，尽管……‖
Although/Though/Even though I felt sorry for him ,I was secretly pleased that he was having difficulties.
虽然我为他感到惋惜，但对他的困难我却暗自高兴。 take a photograph of… 拍……的照片
He took a photograph of his house before he left home. run into trouble = get into trouble 遇到麻烦，陷入困境 Each time he ran into trouble, he asked his parents for help. 3、At one point, it seemed certain that their plane would crash.
at one point 在某一地方，在某一时刻（point 也指时间上的某一点） At one point, he made up his mind to become a painter. 他曾一度下决心要当个画家。
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，
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appear，look等连用：
It now looks certain that the meeting is going to be put off. 现在似乎可以肯定会议将被推迟。
4、It could only get over the mountains if it rose to 10,000 feet. rise to … 上升至……
5、The plane was then able to rise and it cleared the mountains by 400 feet. by表示―相差，以……之差‖的意思
I missed the train by ten minutes. 我晚了10分钟，没赶上火车。 He is younger than me by two years. 他比我小两岁。
【Key structures】 Can and Be able to
情态助动词can/could用于表示请求别人允许或答复时的情况: Can/Could I borrow you pen? can有时可以表示可能性：
I can have lunch with your tomorrow if you like.
在表示天生的或学到的能力时，can/could可用于现在时和过去时，can/could与be able to通常可以互换，表示将来的―能力‖时，则用will be able to： I could drive a car by the time I was sixteen. I tried again and found I could/was able to swim. Can Jane swim yet?
No, but she‘ll be able to swim in a few months‘ time. 在谈到说话时正在发生的事时，一般不用be able to： Look! I can stand on my head.
在表示成功地完成某一具体动作时，通常不用could，而用be able to；如果表示某一动作没有取得成功， 则可用couldn‘t： It‘s pity he couldn‘t visit Mary.
Oh, didn‘t you know? He was able to visit her after all. He was able to leave Europe before the war began. 他在战争开始之前得以离开欧洲。
He was able to go to London yesterday and he enjoyed himself very much. 在问及过去某一具体活动时可用could，但回答是肯定的时候则不能： Could he borrow a car?
Yes, he was able to borrow a car after all./No, he couldn‘t.
【Special Difficulties】 含有介词 at 的词组
at与许多词可以构成固定词组，其中表示时间的有：at first（开始时，最初），at once（马上，立刻），at present（目前，现在），at last（最后，终于），at times（有时），at the moment（现在）；表示地点的有： at home（在家），at school（在学校）；表示程度的有：at least（至少），at any rate（不管怎样）；其它词组有at heart（内心里，实际上），at a loss（困惑不解，不知怎么办）等。
At any rate, I‘m determined to stay here at present.
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At least, I‘m not mad yet.
People have more money now, yet the temptationto to steal is greater than ever before. Why? I‘m at a loss.
Though he tried to made conversation with the lady, he wasn‘t interested in her at heart.
Lesson 44 Through the forest
★risk n. 危险，冒险 ① n. 危险，风险
Is there much risk of losing money in doing football pols?
John took/ran the risk of damaging his bus and drove it into the back of the thieves‘car.
约翰冒着撞坏他开的那辆公共汽车的危险把它撞在了小偷们的车的后尾上。 John saved me at the risk of his own life. 约翰冒着生命危险救了我。 ② vt. 冒……危险，使……遭受危险
We‘d better take a taxi. We can‘t risk missing the plane. John risked his own life to save me. ★breath n. 呼吸
out of breath 上气不接下气 waste one's breath 白费口舌 in one breath 片刻, 转眼间
He finished water in one breath. 他一口气把水喝完了. hold one's breath 屏住呼吸 bad breath 口臭
You have a bad breath. 你有口臭. ★contents n. (常用复数)内有的物品(具体的东西) contents of the bag 包里的书
More contents! (口语) 在吃饭时要求再加些饭菜时可以这样说. content n. 内容(抽象) content of the text 文章的内容 ―
【课文讲解】
1、Mrs. Anne Sterling did not think of the risk she was taking when she ran through a forest after two men. think of… 考虑，思考
Have you ever thought of settleing down in this town? take a risk（of doing） 冒……风险 run after 追赶；追随；追求
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The police are running after a thief. run behind 在某人后面跑 I ran behind him. run to 跑向
2、They had rushed up to her while she was having a picnic at the edge of a forest with her children and tried to steal her handbag. rush up to sb. 迎面冲向某人
up向上，面对面，与说话人相反方向；down方向相同，与说话人相同方向 go down 接着往前走,不用回头
up to可以表示地点、时间等―一直到……‖
The child ran up to his mother when he saw her. He worked up to nine o‘clock in the evening. have a picnic 野餐
at the edge of 在……的边上 eg. The park lies at the edge of the town. 3、In the struggle, the strap broke and, with the bag in their possession, both men started running through the trees.
in one's possession = in the possession of sb. 为某人所拥有…… I went out of the book shop with book in my possesion.
The house used to be in my possession, but now it is in the possession of an old lady.
4、She was soon out of breath, but she continued to run. out of breath 上气不接下气，喘不上气
Tom ran to the shop to get some salt for his mother. When he reached there, he was quite out of breath.
continued to do sth. 接着做……
5、When she caught up with them, she saw that they had sat down and were going through the contents of the bag, so she ran straight at them.
go through （仔细地）搜查，在……中搜寻，浏览，翻看(速度较快的看) She went through her bag, but she couldn‘t find her key. catch up with sb. 追上,赶上(强调结果) contents of the bag 包里的东西
run (straight) at （at 强调瞄准,一般与straight 相连都用at）
6、'The strap needs mending,' said Mrs. Sterling later, 'but they did not steal anything.'
need作―需要‖为讲时，后面接的动名词有被动的含义。
【Key structures】 动名词
1、动名词可以做主语、宾语、介词宾语等 Washing the car made me tired.
Before leaving the office, he gave me a book. I am very keen on cycling.
He sat there without saying anything. 他坐在那里, 一言不发.
That‘s no excuse for not mending the chair! 这不是你不修椅子的借口！
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