131. go for a doctor, go to a doctor

　　go for a doctor去请医生，go to a doctor去看病

132. notice, observe, catch sight of

　　notice注意到，observe观察，仔细地看，catch sight of突然看到 observe the stars

133. insist on, stick to

　　insist on坚持要求，后常接doing, stick to坚持, 后常接sth. stick to the plan

134. look, seem, appear

　　look指从外表上看，seem指内心的判断，appear指给人以表面的印象 appear wise,

look like his father

135. gather, collect

　　gather把分散的东西集中到一起， collect指精心地、有选择地进行收集 collect stamps

136. mean to do, mean doing

　　mean to do打算，想要做某事，mean doing意思是，意味着

By this I mean giving the students more practice.

137. die from, die of

　　die from表示死于（枪）伤，虚弱，过度劳累，饮食过度等，die of表示死于疾病，饥饿，

寒冷，年老，忧愁，失恋等精神因素 die of hunger and cold

138. pay for, pay back, pay off

　　pay for为…付钱，pay back还钱，但不一定还清，pay off还清 pay for the book, pay off the debt¹

139. divide, separate²

　　divide把一个整体分成几部分，separate把连在一起的个体分开

divide the apple, separate the houses

140. arrive, get, reach

　　arrive不及物动词，后接in (大地点)，at(小地点)，get不及物动词后接to，reach及物动词

arrive in Beijing, get to Beijing, reach Beijing