表示時間：
after：After he finished his homework,he went home.
ago;I saw him two days ago.
after a while,after some time.
each time,long before,in a moment
before:I saw him three years before.
during:The sun gives us light during the day.
for:The weather is rather warm for March.
until:I didn't finish my homework until eleven o'clock.
since:Since you have finshded the work.Let's go to a park.
表示地點：
along;We walked along the river bark after supper.
across:A boy helped a blind man across the street.
around:He turned around when he heard a noise behind him.
behind:just then the hunter come from behind the tree.
inside:The girl plays inside all day.
over:We heard a plane flying over.
opposide:The school is opposide to the hospital.
upon:The villige stands upon a hill.
表示列舉：
first of all,to begin with,next,and then,third,finally,last but not least.
表示舉例：
for example,for instance,to illustrate,just as,since,like.
after：After he finished his homework,he went home.
ago;I saw him two days ago.
after a while,after some time.
each time,long before,in a moment
before:I saw him three years before.
during:The sun gives us light during the day.
for:The weather is rather warm for March.
until:I didn't finish my homework until eleven o'clock.
since:Since you have finshded the work.Let's go to a park.
表示地點：
along;We walked along the river bark after supper.
across:A boy helped a blind man across the street.
around:He turned around when he heard a noise behind him.
behind:just then the hunter come from behind the tree.
inside:The girl plays inside all day.
over:We heard a plane flying over.
opposide:The school is opposide to the hospital.
upon:The villige stands upon a hill.
表示列舉：
first of all,to begin with,next,and then,third,finally,last but not least.
表示舉例：
for example,for instance,to illustrate,just as,since,like.