3)at,in和on表示地点的区别:
at表示地点:
①用于指较小的地方。例如:
I shall wait for you at the station.
②用于门牌号码前。例如:
He lives at 115 Fuzhou Road.
in表示地点:
①用于指较大的地方。例如:
He lives in Shanghai.
②虽然是很小的地方,如果说话人住在那里,也可用。商店、机关、学校等,若看作一个地点(point)用at,若看作一个场所(place)用in。比较:
I met him at the postoffice.
I'm now working in the postoffice.
on表示地点,一般指与面或线接触:
①意为"在……上"。例如:
The picture was hanging on the wall.
He put the book on the table and sat on the chair.
②意为"在……旁边"。例如:
He lives in a house on the river.
Xiamen is on the sea.
New York is on the Hudson River.
但:He sails on the river every day.
4)besides,except,but,except for,except that/when的区别:
besides表示"除了……以外还有"。例如:
Besides Mr.Wang,we also went to see the film.(王先生也去了)
注意:besides用于否定句中时,与except,but同义。例如:
We have no other books besides(except)these.
except表示"只有……除外"。例如:
We all went to see the film except Mr. Wang.(王先生没去)
but意为"除了",与except同义,except强调被排除的部分,but则强调整句的内容,常修饰否定意义的代词或疑问代词。例如:
Nobody knew it but me.
Who would do such a thing but Jack.
except for:当except用在句首时,往往后面要加上for。例如:
Except for this,everything is in order.=Everything is in order except this.
还应注意:except for不在句首时,有"除了因为……(with the exception of)"的意思,即表示除去整体中的一部分,它所叙述的事实或细节部分地修正句子的主要意思。例如:
The composition is very good except for a few spelling mistakes.
The village is quiet except for some birds singing in the woods.
except that/when是连接词,后接从句。例如:
This suit fits me well except that the trousers are too long.
He does morning exercises every day except when it is raining.
