高一英语第二十一单元－教学教案

高一英语第二十一单元－教学教案,标签：高一下册英语教案,高中英语教案,http://www.67xuexi.com
是“继续做某事”的意思，即指某事尚未做完，继续做下去（继续做同一件事）。例如：
After reading the text, we went on to do some grammar exercises.
读完课文后，我们接着做了一些语法练习。
Although it was raining hard, they still went on working in the field.
虽然雨下得很大，但他们仍继续在地里工作。
They went on to read the text, after they listened to the music.
他们听完音乐后，接着读课文了。
2)be sure about／of…作“确信”、“有把握”解，后面跟名词，代词或动名词。例如：
Are you sure of his success?(=Are you sure that he will (succeed?) Yes, I’m quite sure of it.
你肯定他会获得成功吗？是的，我确信他会获得成功。
I think the answer is right but I’m not absolutely sure about it.
我认为这答案是正确的，但是没有绝对的把握。
I’m quite sure about／of his honesty. 我确信他是诚实的。
be sure后还可以跟that／when／whether等引导的从句，例如：
I’m not sure when I last saw her. 我不能确定上一次看见她是什么时候。
She was sure that she had done the right thing. 她确信自己做的对。
He is not sure whether they will come to see him. 他不能肯定他们是否会来看望他。
8.In the years that followed, Marx Kept on studying English and using it.
在随后的几年里，马克思继续不断地学习和使用英语。
1)句中的that followed是定语从句，修饰先行词the years关系代词在定语从句中作主语。
句中in the years that followed可改成in the following years或in the next few years. 意思大致相同。
2)keep on doing sth.作“继续做某事”解，（=go on doing sth.= continue to do sth.= continue
doing sth.）例如：
Although he was tired , he kept on working. 虽然他很累了，但他继续工作。
注意：keep on doing和keep doing的区别，前者强调“继续做某事”，而后者常表示连
续不断的动作或持续的状态，即“不停地、不断地做某事。”例如：
He had a bad cold and kept coughing all day. 他患了重感冒，整天不停地咳嗽。
Be quiet: Don’t keep asking such silly questions. 安静点，不要老是问这么傻的问题。
9.In the 1870s, when Mark was already in his fifties, he found it important to study the situation in Russia. 在19世纪70年代，马克思已经50多岁了，他觉得研究俄国的形势很重要。
in one’s fifties指在某人50多岁时（50──59）。例如：
He became famous is his twenties. 他20多岁时就出名了。
When he was in his thirties, he went to the countryside and became a farmer.
当他30多岁的时候，他去了农村，当了一个农民。
The professor was an ordinary—looking little man is his sixties.
那位教授是一位60多岁，个子矮小，相貌平常的人。
2)句中的it是形式宾语，真正的宾语是后边的动词不定式。此句型结构是“主语＋谓
语动词＋it＋宾补（形容词或名词）＋动词不定短语。常用于此种结构的谓语动词还有think、fell、make、consider等。例如：
I think it necessary to go there. 我认为到那儿去一趟很有必要。
We find it impossible to finish the work in ten minutes.
我们认为10分钟内完成那项工作是不可能的。
He feels it his duty to help those who are in trouble.
他感到帮助那些处于困境中的人们是他的责任

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