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，例：observe the stars
catch sight of 突然看到

133. insist on, stick to　　

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

134. look, seem, appear　　

look 指从外表上看，例：look like his father
seem 指内心的判断；
appear 指给人以表面的印象，例：appear wise

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，例：collect stamps