1. turn up ①出现，到达 ②开大音量 ③被发现或找到 ④查(字典等)
例1)He promised to come but hasn’t turned up yet.
2)I can’t hear the radio very well; could you turn it up a bit?
3)I’m sure your watch will turn up one of these days.
4)You may turn the word up in the dictionary.
2. turn in ①归还 ②就寝 ③将某人交给警方拘押
例1)You must turn in your equipment before you leave the army.
2)Well, I think I’ll turn in. I’ve got to get up early.
3)She threatened to turn him in.
3. turn on ①打开 ②依赖 ③突然攻击某人
例1)could you turn on the light, please?
2)The success of a picnic usually turns on the weather.
3)Why are you all turning on me?
4. turn off 关掉(煤气，水，电，收音机，电视机等)
例1)They have turned the gas off for a couple of days.
2)Don’t forget to turn off the light when you leave.
5. turn out ①证明是，结果是 ②关掉 ③生产 ④赶走
例1)The experiment turned out to be a great success.
2)It turned out that she didn’t get the job.
3)Remember to turn out the lights before you go to bed.
4)The factory turns out 100 cars per day.
5)Benjamin turned his son out of the house without any money.
6. turn against 背叛
例1)She will never turn against her country.
2)She turned against her old friend.
7. turn down ①关小 ②拒绝
例1)Can you turn the TV down? I’m trying to get some sleep.
2)He tried to join the army but was turned down because of poor health.
8. turn into 把……变成，译成
例1)You’ll never turn me into a salesman.
2)Turn the following sentences into Chinese, please.
9. turn to 翻到，求助于
例1)Please turn to page10.
2)The child turned to its mother for comfort. 3)turn to a dictionary (look up the words in the dictionary)
10. turn over ①翻身，翻转 ②移交，交付
例1)She turned over and went to sleep.
2)The car turned right over.
11. turn (a)round ①绕着……转 ②面向另一方向
例1)The earth turns around / round the sun.
2)Turn around / round and let me look at your back.
12. turn away ①转过脸，不面对或不再看 ②拒绝帮助，拒绝某人进入某处
例1)She turned away in horror at the sight of so much blood.
2)A doctor can’t turn away a dying man.
3)Hundreds of people had to be turned away from the stadium.
13. turn back 原路返回，往回走
例1) The weather became so bad that they had to turn back.
2)We were turned back at the border because of the fighting.
14. take turns (at) doing sth. / to do sth. 依次，轮流做某事
例1)We took turns (at) doing the driving on the way up to Canada.
2)You’ll have to take turns being captain of the team.
15. in turn ①结果 ②依次
例1)Interest rates were cut, and in turn, share prices rose.
2)He asked each of us in turn to describe how alcohol had affected our lives.
16. by turns 依次
例1)Let’s drive the car by turns.
2)We did the work by turns.
17. at every turn 经常地，每次
例1)I kept meeting him at every turn.
turn的用法4：turn后接副词away表示“离开,走开,把…打发走”; 后接副词back表示“折回,返回”; 后接副词down表示“拒绝接受某人〔某事〕”; 后接副词in表示“睡觉,转身进入,拐入”“把某物上交,把某物交出”; 后接副词off表示“关(自来水、电源、煤气等)”; 后接副词over表示“翻身,将…翻身”; 后接副词out表示“结果是…,证明是…”“撵出”“生产”; 后接副词up表示“出现,出席,到达”“发现”。
turn的用法5：turn a hand和turn a hair通常用于否定结构。