*turn in
(1)睡觉
e.g. I turned in late last night. (=went to bed)
(2)turn sb. in 把（某人）交给警方，使自首
e.g. He turned the thief in just now. 他刚把贼交给警察。
(3)turn sth. 情人节告白情话in 退还，交还；上交，提交
e.g. You must turn in your pass when you leave the building.
I haven’t even turned in Monday’s work yet.
*turn on
(1)打开（电器之类的）
e.g. Turn on the radio, plea.
(2)产生或使产生兴趣、兴奋。通常与 to 连 用
e.g. My uncle turned me on to jazz.
(3)突然攻击，袭击
e.g. His normally placid dog turned on him and bit him in the leg.
*turn 翅膀图片简笔画down
(1)把热度，音量等降低
e.g. Plea turn down the radio, it ’s noisy.
(2)拒绝某人
e.g. I applied for the job but they turned me down.
*turn out
(1) 关上，关掉（灯）
e.g. She turned out the light. (2)（因为重要的事件而）聚集
e.g. Crowds of fans turned out at the airport to welcome their idol.
(3)生产，制造（某物）
e.g. The factory turns out 300 cars a day.
(4)turn sb. out 迫使（某人）离开，赶走
e.g. I turned the dog out becau he was disgusting.
(5)turn out to be 淘宝双11活动结果是，证明是
e.g. All the thing he said turned 英语短句out to be untrue. 或者可以用从句： It turned out that he was lying.
*turn over
(1)turn sth. over 翻身，翻转
e.g. If you turn the box over, you'll e some words at the bottom of it.
(2)to think 对联三about sth. 考虑某事
e.g. I kept turning the idea over in my mind. 我一直在考虑这个主意。
(3)把某物移交某人
e.g. I turned the key over to the 大闸蟹的吃法head teacher. 我把钥匙交给班主任。
小班数学(4)把某人交给警方
孙权劝学课件
He turned the robber over just now.
(和刚才 turn in 一样)
*turn to
(1)turn to sb. / sth. 求助于某人或某物
e.g. He turned to his best friend for help.
(2)turn to sth. 开始做某事
e.g. Some young people turn to crime.
(3)（把书）翻到
他刚才把强盗交给了警察。
一些年轻人开始走上犯罪之路。
