5.make up one's mind, decide, determine
l）make up one's mini“决心；认定”，后接不定式或that从句，mind随人称而变化。如：
We've made up our minds to devote our lives to serving the people heart and soul．
2）decide指经过考虑或讨论研究作出决定，后接不定式，介词 on／up on或从句。如：
He decided on taking the position at the bank. ==He decided to take the position at the bank．
3）determine“决心、坚决”，侧重表示决心已下定，任何力量都动摇不了这种决心。其后常接不定式，也可接on／upon + ing。如：
His mother has determined to give him a chance．
6.seize，take，grasp，arrest
1）seize“抓住”有猛然抓住并不脱手之意。如：
The policeman seized the thief by the collar．
2）take“抓住”，属一般用语。如：
He took his girl friend by the arm．
3）grasp“抓住，抓紧；抱住；理解，领会”。如：
Grasp the rope and I'll pull you up．
I didn't quite grasp your meaning
4）arrest侧重于“逮捕；扣留；防止。”如：
He was arrested In suspicion of having murdered the girl．
This newly developed drug has arrested his cancer．
7.give out, give away, give back, give forth, give in, give off, give over, give up
（l）give out放出、发生；宣称，公布，发表；分配，分发；用完，耗尽；精疲力竭。如：
The nurse's patience at last gave out．
（2）give away赠送；出卖；泄露/give back归还；返射/give forth放出，发出（声音，气味等）；发表，公布give in投降；屈服，让步；交上／give off发出（蒸气、光、烟等）／give over移交，交托／give up让给；放弃，抛弃。
8. Once on the boat, they were taken below and their chains were fixed to bars that ran the length of the ship.
run在这里为引申含义，作“扩展，延伸”解。如：
The road runs along the river. 那条道路沿着河流延伸。
The shelves run round the wall. 书架绕墙而立。
9.All he knew was that his African ancestor taught his son and grandson the words in his own language for "river" and "guitar".
这是一个主从复合句。All the knew是主语，其中all后省略了关系代词that，he knew是定活从句。连词that后引导一个表语从句。
He can do all he could to help me. 他会尽其所能来帮助我。 (all that he could中的all that 可省略)
教学设计方案Lesson 53
Step 1 Revision
1 Check the hom ework exercises.
2 Get Ss to have a dialogue like the one in Part 2 of Lesson 52, in pairs, with their books shut.
Step 2 Presentation
SB Page. 7, Part 1. Write the word slavery on the Bb and ask the Ss how much they know about this topic. Make sure that Ss understand that slaves were caught in Africa and were taken to America where they were sold, as this is the key to the story. Put any useful notes and key words that arise out of this discussion on the Bb. Get Ss to talk about the picture and describe what they can see.
Step 3 Reading for general understanding
Say to the Ss You are going to read a story about a man who lived in the eighteenth century. His name was Kunta. Read aloud the task and the two questions. Allow the Ss enough time to read the text and write down the answers. Put them in pairs to discuss their answers, then collect the answers from the class. (1 He was caught in a forest in Africa, put in chains and sent by ship to .America. 2 About a third of the black people on the ship died during the journey.)