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In 1929, three years after his flight over the North Pole, the American explorer, R.
美国探险家 R.E. 伯德在飞越北极3年之后，于1929年第一次飞越了南极
时间关系：In 1929, three years after his flight over the North Pole, the American explorer, R. 通过时间连接词安排动作先后，重点看两个动作的发生顺序。
E.
虽然开始时伯德和他的助手们拍下了飞机下面连绵群山的大量照片，但他们很快就陷入了困境
第 2 句：先确定主语和谓语，再结合上下文判断本句在故事中的作用。
Byrd, successfully flew over the South Pole for the first time.
在有个地方，飞机似乎肯定要坠毁了
第 3 句：先确定主语和谓语，再结合上下文判断本句在故事中的作用。
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.
只有在飞至10,000英尺的高度时，它才能飞过这些山头
定语从句：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. 中的关系词把补充信息接在名词后，先找它修饰的先行词。
At one point, it seemed certain that their plane would crash.
伯德马上命令他的助手们把两个沉重的食物袋扔掉，于是飞机可以上升了，它在离山头400英尺的高度飞越了过去
定语从句：At one point, it seemed certain that their plane would crash. 中的关系词把补充信息接在名词后，先找它修饰的先行词。
It could only get over the mountains if it rose to 10,000 feet.
伯德这时知道他能够顺利飞抵300英里以外的南极了，因为前面再没有山了
条件关系：It could only get over the mountains if it rose to 10,000 feet. 用 if/unless 引出条件，注意从句与主句的时态搭配。
Byrd at once ordered his men to throw out two heavy food sacks.
飞机可以毫无困难地飞过这片茫茫无际的白色原野
非谓语与动作关系：Byrd at once ordered his men to throw out two heavy food sacks. 中的 -ing 或 to do 补充说明动作的时间、目的或伴随情况。
The plane was then able to rise and it cleared the mountains by 400 feet.
被动表达：The plane was then able to rise and it cleared the mountains by 400 feet. 强调动作的承受者，注意 be 与过去分词的形式。
Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight.
定语从句：Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight. 中的关系词把补充信息接在名词后，先找它修饰的先行词。
The aircraft was able to fly over the endless white plains without difficulty.
非谓语与动作关系：The aircraft was able to fly over the endless white plains without difficulty. 中的 -ing 或 to do 补充说明动作的时间、目的或伴随情况。
单元概要
飞越南极：How was the plane able to clear the mountains? 本课按完整课文逐句精读，重点整理词汇、短语和与原文直接相关的语法。
精读导图 飞越南极 复述提示 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.
单词表
| 单词 | 音标 | 释义 | 精讲 |
|---|---|---|---|
| pole | /pəʊl/ | n. （地球的）极 |
|
| flight | /flaɪt/ | n. 飞行 |
|
| explorer | /ɪkˈsplɔːrə(r)/ | n. 探险家 |
|
| lie | /laɪ/ | v. 处于 |
|
| serious | /ˈsɪəriəs/ | adj. 严重的 |
|
| point | /—/ | n. 地点 |
|
| seem | /—/ | v. 似乎 |
|
| crash | /kræʃ/ | v. 坠毁 |
|
| sack | /sæk/ | n. 袋子 |
|
| clear | /klɪə(r)/ | v. 越过 |
|
| aircraft | /ˈeəkrɑːft/ | n. 飞机 |
|
| endless | /ˈendləs/ | adj. 无尽的 |
|
| plain | /pleɪn/ | n. 平原 |
|
短语
| 短语 | 意思 |
|---|---|
| fly over | 飞越 |
| run into trouble | 陷入困境 |
| at one point | 在某个时候 |
| throw out | 扔掉 |
| be able to | 能够 |
| without difficulty | 毫无困难地 |
| fly v | 飞 |
语法点
if 条件句中的情态动词
The plane could only get over... if it rose... 用 could 表能力，if 从句给出条件。
相似句：
- You can succeed if you work hard.
- We could leave if the weather improved.
关系代词 which
the South Pole which was 300 miles away 中 which 修饰 pole，补充其位置。
相似句：
- This is the town which I visited.
- He found the road which led north.
读写提示
- 复述时按原文顺序覆盖每一句，不只背重要句。
- 注意同一词在课文中的词性、搭配和时态。
- 结尾保留课文的反转或幽默效果。
考点
2
考点
2第 1 / 2 题
How was the plane able to clear the mountains?
选择题精讲
6
选择题精讲
6Multiple choice questions
4It could only get over the mountains if it rose to 10,000 feet. This means it______ over the mountains.未做
a. would succeed in getting
b. got
c. was able to get
d. had got
4a... could与过去时态有关,强调可能性 be able to强调成功地做 用过去式表达,表示在过去发生 过去完成时,强调在过去的过去未做
5The plane was then able to rise. This means it ______.未做
a. could rise
b. might rise
c. might succeed in rising d.rose
5d... could rise...有可能,不知道结果 might rise...可能 might succeed in rising...可能成功地做 rose...没有情态单词,表示已经成为事实未做
6Byrd knew that he would be able to reach the South Pole. It would be ______.未做
a. impossible b.necessary
c. able
d. possible
6d... be able to was/were able to ......表示这个动作在过去成功地做 will be able to......将来可能会成=can未做