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学什么：第二册第90课：http://www.toutiao.com/i6459901326921826829/.

接下来，我们来看第91课的内容：

首先，阅读边肖

第二，重要的句型或语法

Can, can and achieve.

本课主要复习第十九课、第四十三课和第六十七课中can、able to和manage to的用法和区别。

其中，can着重表达“可以；会”，能够专注的表达是“很难得到的；善于”，而设法强调“成功地设法使之成功”。比如：

He can swim.

He was able to arrive in London after eighteen hours' flight .

He managed to swim to the shore in the storm.

【推荐阅读】

有关更多信息，请参见以下文章：

情态动词can在考点的使用

2.关于make的短语

本课列举了关于make的常用短语，主要包括：make for、make out、make up、make for等。

三，课文的主要语言点

[注意]

以下文字选自外研社出版的《新概念英语》第二册教材。请按需购买教材，支持原版！

A pilot noticed a balloon which seemed to be making for a Royal Air Force Station nearby.

1) balloons, balloons.

2)导致定语从句修饰先行词。

3) Get ready and move forward.

4)皇家空军，皇家空军。

5) nearby, nearby.

He informed the station at once, but no one there was able to explain the mystery.

通知某人。某事的。通知某人。某事的。

2) explain, explain. Its noun is explanation.

3) mystery, mystery.

The officer in the control tower was very angry when he heard the news, because balloons can be a great danger to aircraft.

1) Control tower, control tower.

2)注意本句主句和从句的时态前后不同。这是因为因为从句描述的是客观事实，所以采用一般现在时。

3)对…的巨大危险.

4)飞机，飞机。多指战斗机。

He said that someone might be spying on the station and the pilot was ordered to keep track of the strange object.

刺探、刺探和刺探。Spy常用作名词，表示“间谍”。

2)保持跟踪、追踪、追踪。

3) Strange objects refer to balloons over the station.

The pilot managed to circle the balloon for some time. He could make out three men in a basket under it and one of them was holding a pair of binoculars.

1)绕，绕，绕。

2)辨认，看，识别。

3)双筒望远镜，双筒望远镜。这个词通常以复数形式出现，并经常与一对连用。

When the balloon was over the station, the pilot saw one of the men taking photographs. Soon afterwards, the balloon began to descend and it landed near an airfield.

见某人。做某事。看到某人在做某事。

2) Take photos, take photos.

3) Soon, soon, soon.

4) drop, drop.

The police were called in, but they could not arrest anyone, for the basket contained two Members of Parliament and the Commanding Officer of the station!

1) Call in and call in.

2)逮捕，逮捕注意，这个词可以用在短语逮捕某人的注意力中，意思是引起某人的注意，相当于引起某人的注意。

3)包含，包含。

4) Congressman, Congressman.

5) Commander, commander's command, command and command.

As the Commanding Officer explained later, one half of the station did not know what the other half was doing!

as引导情态的状语从句，意思是“就像”。

2)注意一个的搭配.其他的.意思是“一”.另一个……”。

第四，文本总结

The pilot circled the balloon, where there was a basket containing three men, one of whom was holding a pair of binoculars. Before landing near an airfield, it flew over the station and one of them took photographs. As two of them were Members of Parliament and the other was the Commanding Officer, the police could not arrest anyone. The mystery was explained when the Commanding Officer said that one half of the station did not know what the other half was doing.

动词（verb的缩写）实用文化

皇家空军

英国皇家空军(RAF)是英国空军的一个分支，也是世界上历史最悠久的独立空军。它是负责英国防空和其他国际防御义务的武装组织。英国皇家空军起源于1911年，

当时成立了皇家工程兵航空营，下辖气球连和飞机连。英国空军的海军联队和空军联队在第一次世界大战中分开，但在1918年合并为皇家空军。皇家空军成立于1918年4月1日。

1920年，在林肯郡的克兰威尔成立了皇家空军学院。1922年，在汉普郡的安福特建立了一所皇家空军参谋学校。二战爆发后，英国皇家空军的前线部队约有2000架飞机。2015年2月12日，

英国首个F-35战斗机中队在美国正式成立并接受训练。

六、学习建议

1.注意，能够和设法有时有相似的意思，两者都可以表示某事最终成功完成。比如：

He was able to arrive in London at last.

句子中的“was able to”一词是指终于做了某事，可以用“设法”来代替。

关于学什么：第二册第91课，学什么：第二册第91课的介绍到此结束，希望对大家有所帮助。