15. look into 向里面看，調查

　　我們將調查這件事的可能性。We’ll look into the possibility of the matter

　　The police are looking into the reason why the plane crashed into the sea.

　　Would you mind looking into the problem for me?

　　The cause of the fire is being looked into now.

　　The teacher looked into the classroom through the window and found nobody in.

　　16. take charge (of) 負責(處理某事或照顧某人)，接/看管

　　in charge (of ) 負責(某事) free of charge 免費

　　sth. be in the charge of sb. in sb’s charge 由某人掌管、負責;

　　1)Who will take charge of the factory during the director’s absence?

　　2) Tom works there, in charge of the sales department.

　　湯姆在那兒工作，負責銷售部。

　　3) The girl was safely left in the charge of a nurse.

　　那個女孩安全地由一個護士看護著。

　　4) These books were sent to our school free of charge.

　　這些書是免費送給我們學校的。

　　17. not…until/till…; …until/till…

　　I did not realize what had happened until he left the room angrily.

　　=Not until he left the room angrily did I realize what had happened.

　　=It was not until he left the room angrily that I realized what had happened.

　　18. carry out 實施，執行，落實，實現

　　一旦你許下諾言，就應該履行它。

　　Once you have made a promise, you should carry it out.

　　這個計劃不可能實施。It’s impossible for the plan to be carried out.

　　19. separate 指把原來連在一起或靠近的東西“分離”也可指“離別”

　　divide 指把整體“分成，劃分”許多份，后常接into, between

　　The Taiwan Straits separate Taiwan from Fujian.

　　He separated the good apples from the rotten ones.

　　The island is divided into two parts. He divided his time into work and play.

　　20. pick up 拾起，撿起;(用車)接(某人/物)，中途搭乘;偶然間學會;加快

　　He picked up his school bag and rushed out of the door. ( 撿起 )

　　I’ll come to pick you up; please wait for me. ( 接 )

　　The train picked up speed and ran faster. ( 提高，加快 )

　　Kathy picked up a lot of Spanish by playing with the native boys and girls. (學會 )

　　21. convince vt. 使確信 convince sb. of sth.

　　We failed to _convince him of his mistake. 我們沒能使他相信他是錯的。

　　convince sb. that + 從句 使某人相信 = sb be convinced that + 從句 相信……

　　I am convinced that what you said is quite right.

　　They have convinced me that the Chinese people are a great people.

　　他們是我相信，中華民族是一個偉大的民族。

　　convinced adj.確信的，信服的,被說服的 convincing adj.令人信服的

　　The reason why he was late is not convincing_. He didn't look convinced.