5.in search of-trying to find something: She was shot by a sniper when she went out in search of firewood.她出去搜寻柴火时遭到 了枪手的狙击。 6.set in-when something unpleasant sets in,it begins and seems likely to continue in a serious way: This rain looks as if it hasse for the rest of the day.这雨看上去要下一整天了。 Despair seems to have set in among the England team.绝望情绪似乎在英国队产生了。 7.in the grip ofiron He kept a firm grip on his children.他对小孩管得很严。 to have a sound grip of a problem对问题有较深的理解 chop up-to cut by striking with a heavy,sharp tool Onions must be chopped up tomake a salad.要做凉拌菜得把洋葱剁醉。 9.go on striketoundertake a strike against(an employer). 10.call at In the letter he was asked to call at the station.信中说要他到警察局去一下 1L.come to no harm没有造成伤害 The child fell over but came to no harm.小孩跌倒了，可是没伤着。 12.devote to He devoted all his time to his job.他把他的全部时间都用在工作上了。 This magazine is devoted to science.这个杂志专门刊载科技文章。 Grammar: 集体名词的数 1.有些集体名词如cattle,clergy,.police,poultry,vermin等在句子中往往作复数用，如： were still lear The police are investigating the crime. Poultry are dear in the city. These vermin do much harm to poultry 2.有些集体名词如foliage,machinery,merchandise等在句子中往往作单数用，如： The green foliage was restfu New machinery was introduced in the factory 3.有些集体名词如1audience,.class,.committee,couple,crew,family,government,public等如被 3 3 5. in search of -trying to find something: She was shot by a sniper when she went out in search of firewood. 她出去搜寻柴火时遭到 了枪手的狙击。 6. set in -when something unpleasant sets in, it begins and seems like ly to continue in a serious way： This rain looks as if it has set in for the rest of the day. 这雨看上去要下一整天了。 Despair seems to have set in among the England team. 绝望情绪似乎在英国队产生了。 7. in the grip of iron He kept a firm grip on his children. 他对小孩管得很严。 to have a sound grip of a problem 对问题有较深的理解 8. chop up-to cut by striking with a heavy, sharp tool: Onions must be chopped up to make a salad. 要做凉拌菜得把洋葱剁碎。 9. go on strike -to undertake a strike against (an employer). 10. call at In the letter he was asked to call at the station. 信中说要他到警察局去一下。 11. come to no harm 没有造成伤害 The child fell over but came to no harm. 小孩跌倒了，可是没伤着。 12. devote to He devoted all his time to his job. 他把他的全部时间都用在工作上了。 This magazine is devoted to science. 这个杂志专门刊载科技文章。 Grammar： 集体名词的数 1．有些集体名词如 cattle，clergy, police, poultry, vermin 等在句子中往往作复数用，如： His cattle were still lean. The police are investigating the crime. Poultry are dear in the city. These vermin do much harm to poultry. 2．有些集体名词如 foliage, machinery, merchandise 等在句子中往往作单数用，如： The green foliage was restful. New machinery was introduced in the factory. 3．有些集体名词如 audience, class, committee, couple, crew, family, government, public 等如被