1、Unit 4 Helping people around the world,Step One 构词助记,内容索引,Step Three 语境助记,Step Two 词义助记,Vocabulary Breakthrough,Step One 构词助记,A组(前缀) port n n出口产品；出口；vt.& vi.出口 B组(后缀) describe v n描写(文字)，形容，说明 politics n adj.政治的；政府的 add v n增加；添加 starve v n挨饿；饿死；饥饿,export,description,political,addition,starvation,poss
2、ess v n个人财产；拥有，具有 mountain n adj.多山的 heat v& n n供暖；供暖系统 trouble n adj.麻烦的，讨厌的，棘手的 commit vt. n承诺，保证；投入，奉献 mud n adj.多泥的，泥泞的 interpret v n口译工作者，口译译员,possession,mountainous,heating,troublesome,commitment,muddy,interpreter,C组(转化)n& v缺乏adj.平等的；同等的；n.同等的人；相等物；vt.与相同或相等 alternative adj. ；n._ well n ；adj.
3、；adv._ shelter v ；n._ crowd v ；n._,lack,equal,可供替代的 可供选择的事物,井，水井,(身体)好的；健康的,好；顺利地,遮蔽；保护；庇护,住所，藏身之处,挤满，塞满，使拥挤,人群,Step Two 词义助记,A组(同义词) sufferer n n. obtain v v. method n n. salary n n. mess n n. workmate n n. empty adj. adj.,victim,acquire,means,wage,chaos,colleague,vacant,B组(形近词) require v需要；要求 v购得；
4、获得 angel n天使 n角度,acquire,angle,Step Three 语境助记,背诵经典 1.The interpreter does some voluntary work at a local school. 2.One of my former colleagues set up a company and it expanded into a large enterprise in a short time. 3.The supply of food and shelters is urgent in the remote mountainous area because the victims in the storm are suffering from starvation. 4.When the post finally fell vacant，he offered it to his assistant.,
