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When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
时间状语从句
see sb doing看见正在做某事
two students dressed up as workmen 过去分词做后置定语，被打扮成工人的两个学生
inform.v.to tell sb about sth,especially in an official way
新概念二85课
I have just received a letter from my old school, informing me that my former headmaster, Mr. Stuart Page, will be retiring next week.
现在分词结构伴随状语
新概念三5课
He sent yet another fax informing the journalist that if he did not reply soon he would be fired.
现在分词结构伴随状语
As soon as he had hung up, he went over to the workmen and told them that if a policeman ordered them to go away, they were not to take him seriously.
as soon as引导大的时间状语从句
从句中又and并列谓语动词，因为主语相同，第二个主语省略
told them that 宾语从句
宾语从句中if又引导条件状语从句
take him seriously认真对待
新概念三1课
When reports came into London Zoo that a wild puma had been spotted forty-five miles south of London, they were not taken seriously.
他们没有得到认真对待
He added that a student had dressed up as a policeman and was playing all sorts of silly jokes on people.
add.v.to say sth more,to make a further remark
宾语从句
从句中and并列谓语动词
新概念二52课
She gazed at it for some time then added,‘You don't need bookcases at all.You can sit here in your spare time and read the carpet!'
新概念三11课
Then I added with a smile,‘It's a strange mixture I make myself.'
Both the police and the workmen were grateful to the student for this piece of advance information.
简单句
主系表
grateful.adj.feeling or showing thanks because sb has done sth kind for you or has done as you asked
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