turn around ［round］（不及物）掉头，转身
When Jackson has started on a trip，he does not like to turn around and go back.杰克逊已上路旅行时就不喜欢掉头回家。
He turned around to find his wallet stolen by a pickpocket.他转过身来发现他的皮夹子被扒手偷了。
turn...around ［round］（及物，必分）使掉头
Tom rode his bicycle straight down the road for two miles and turned it around to go back.汤姆骑他的自行车沿着公路往前行驶了两英里，然后掉头骑回来。
We've gone too far.Turn the car around and go back to the nearest village.我们走得太远了，把车掉过头来开回到最近的那个村子去。
turn down1（及物，可分）关小（收音机、煤气等）
Turn down the radio，or my ears can't bear it.把收音机关小点，否则我的耳朵受不了。
The pancake is burnt.Turn the gas down at once.煎饼烤糊了，马上把煤气关小点。
turn down2（及物，可分）拒绝
He was poor but proud，and turned down every offer of help.他贫穷却高傲，拒绝接受任何主动的帮助。
Many boys courted Lynn，but she turned them all down.很多男孩向林恩求爱，但都被她拒绝了。
They turned down his request for free admittance into the theatre.他们拒绝了他免费进入剧场的要求。
His book has been turned down by the publishers.他的书被出版社拒绝了。
She flatly turned down Bill's proposal to her.她断然拒绝了比尔的求婚。
turn in1（不及物）睡觉
It is eleven o'clock.Let's turn in.11点了，咱们就寝吧。
The Robesons generally turn in after the newscast.罗伯逊一家通常在听完新闻广播后睡觉。
It's late.I'll turn in.很晚了，我要上床睡觉了。
It's time to turn in.是睡觉的时候了。
turn in2（及物，可分）交还
Don't forget to turn in these books to the library.别忘了把这些书还给图书馆。
I hope the holiday will turn his good spirits in.我希望假期会使他恢复良好情绪。
turn in3（及物，可分）上交
He has already turned in his resignation.他已交了辞职书。
Turn in your homework，please.请把作业交上来。
Each pupil has to turn in his homework in time every day.每个学生每天得按时交家庭作业。
It the pen isn't yours，I'll turn it in.如果这钢笔不是你的，我将把它上交。
turn into（不及物）变成
In an old story，a frog turned into a prince.一个古时的故事说，一只青蛙变成了王子。
Little by little，the smoke grew heavier and thicker until finally it turned into a terrible genie！烟渐渐地越来越多，越来越浓，最后变成一个可怕的妖怪。
By midnight the rain turned into snow.到午夜，雨已变成了雪。
turn...into...（及物，必分）使变成
A pretty girl turned a frog into a prince.一位漂亮姑娘使一只青蛙变成了王子。
The magician turned the boy into a dog.那魔术师使这男孩变成了一只狗。
Ice is turned into water by heat.冰受热会变成水。
In winter a whole basin of water may be turned into a block of ice.在冬天，满满一盆水可以变成一大块冰。
turn off（及物，可分）关掉（灯、煤气、电视机等）
Don't forget to turn off the television.别忘了关电视。
His mother told him to turn off the light and go to bed.他母亲叫他关灯去睡觉。
Shall I turn the radio off，or you're still listening to it？是我把收音机关掉，还是你继续听？
She turned the gas off and went upstairs.她把煤气关掉就上楼去了。
turn on（及物，可分）开（电灯、收音机、自来水等）
She turned on the radio and listened to the music.她打开收音机听乐曲。
He turned on the light and looked for his pen.他开灯找他的钢笔。
Charles turned the tap on and washed his clothes.查尔斯拧开水龙头洗衣服。
Turn the light on，please.I can't see what I'm doing.请开灯，我正在做事，看不见。
turn out （不及物）结果证明
Do you think the crops will turn out well？你以为庄稼果真会长得不错吗？
Your suggestion turned out correct.你的建议果然正确。
"I think that everything will turn out all right，"said he hopefully.“我想最终一切都会使人满意的，”他满怀希望地说。
The English evening party turned out a great success.结果英语晚会开得很成功。
turn over（及物，可分）思考
They turned over the possibilities for the future.他们考虑了可能出现的几种前途。
I'm turning over changing my job.我在考虑换个工作。
Robinson turned the problem over in his mind and then made a decision.鲁宾逊思量了这个问题并作出决定。
turn to1（及物，不可分）向…求援
She turned to her father when she was out of work.她失业时向她父亲求援。
I always turn to a friend of mine when I'm in difficulties.我有困难时总是向我的一位朋友求援。
Who can I turn to when I have no way out？我走投无路时能求助于谁呢？
turn to2（不及物）开始干起来
We turned to and cleared up the hall.我们着手工作，把礼堂整理了一下。
The students turned to and soon the paths were cleared of snow.学生们大干起来，路上的雪很快就被清除了。
turn up1（不及物）到达，出现
He is looking for a job，but so far nothing has turned up.他在找工作，但至今没有机会。
I was expecting him at ten，but he didn't turn up.我指望他10点来的，他却没来。
I lost my pen but it turned up a few days later.我的那支钢笔找不到了，可是过了几天它又出现了。
The well-known singer hasn't turned up for over two years.那位著名歌手已经两年多没露面了。
turn up2（不及物）偶然被找到
I am afraid your lost ring will never turn up.你丢失的那个戒指恐怕永远找不到了。
I found my diary lost this morning.I think it will turn up someday.今天早上我发现我的日记本不见了，我想总有一天会找到它的。
The missing boy turned up last Tuesday.那个下落不明的男孩上星期二找到了。