156. turn, get, grow　　

turn表突变，后常接表颜色的词；例：turn yellow
get强调变的结果；例：get tired
grow强调过程，逐渐的变化 例：grow big

157. close, shut, turn off　　

close和shut当关解时可以通用，用于可开合的物体；例：Close/Shut the door.
turn off用于指有开关的物体 例：Turn off the TV.

158. set out, set about, set off　　

set out 后接 to do；
set about 后接doing；
set off 后接 for sp.

159. begin, start　　

begin侧重时间的开始，反义词为end；例：Class begins at 7:30 a.m.
start侧重由静到动的转折，反义词为stop

160. happen, take place　　

happen偶然性的没有预料到的事情的发生；
take place必然性的发生 例：Great changes have taken place in my hometown.