168. precaution n. 预防，防备，警惕

（例）You should take an umbrella just as a precaution. 你该带把伞，有备无患。

169. idle a. 懒散的，无所事事的

（例）The cowboy lives an idle life.牛仔过着悠闲的生活。

（例）Don't idle away your time. 不要虚度光阴。

170. identify vt. 认出，鉴定

（例）She identified that the man was her attacker. 她认出那个男人就是袭击过她的人。

171. identity n. 身份；个性，特性

（例）The police asked him to show his identity card.   警察让他出示身份证。

172. poverty n. 贫穷

（例）The man lived in poverty after his unemployment.这人失业后就生活在贫困之中。

173. resistant a. (to)抵抗的，抗...的，耐...的

（例）

174. resolve vt. 解决；决定，决意

（例He resolved that nothing should hold him back. 他下决心不让任何事情阻挡他。）

175. barrel n. 桶

176. bargain n. ①(买卖、劳资等双方的)协定，协议 ②便宜货

          vi. 讲价，讨价还价；讲条件

【搭配】strike (或conclude) a bargain with sb. over sth. 与某人就某事达成协议定（或就某事成交）；a good (bad) bargain 一笔上算（不上算）的交易；drive a hard bargain 杀价；迫使对方接受苛刻条件

【例】 She showed me how to shop ~s. 她让我看看该怎样觅购特价商品。

       That book is a real ~ at 2$. 那本书定价2元真是够便宜的。

       She stood ~ing with the farmer for his vegetables. 她要买那农民的蔬菜，正站着和他讲价钱。

177. coarse a. ①粗的，粗糙的 ②质量差的，粗劣的 ③粗俗的，粗鲁的

【搭配】coarse sand 粗沙; coarse skin 粗糙的皮肤; coarse food 粗食 ; coarse language 粗话; coarse manners 粗鲁的举止

【例】He was a ~ man whose manner made him unpopular with some people.

      The sand was so coarse that it was quite painful to walk on.

178. coach n. ①教练 ②长途公共汽车 ③【铁】旅客车厢

【例】we are going to the airport by coach.

      After six hours of school classes Ben has to do another hour with his tennis coach.

179. code n. ①准则，法规 ②密码

【搭配】break /decipher / crack a code 破译密码；the Civil Code of France 法国的民法; the social code of manners 社交礼貌规范；genetic code 遗传密码

【例】The message was written in code.

      She managed to decipher the code of the telegram.

180. coil n.（一）卷，（一）圈；【电】线圈 v. 卷，盘绕

【例】A coil of thick blue smoke rose up from his pipe.

      She coiled her hair at the back of her head.

181. adult n. 成年人；adj.①成年的 ②成熟的，老练的

【搭配】young adults 青壮年; assume adult responsibility 承担成人的职责; act like an adult 按成人的样子行事 ; in sb.’s adult life 在某人的成年生活阶段

【例】I will try to be adult about the situation.

      Betsy is a rather adult child.

      Are you adult enough to know that there are two side to every issue.