Ⅱ. policeman “警察”与police 同意。其复数形式为policemen. (policewoman→policewomen) .但表一个警察时，应说：one / a policeman. 而不说：one / a police.
单词：policeman的近义词、反义词、形近词辨析
police/policeman/policy/politics/political/statesman/left-wing/right-wing/party/polite/impolite/cop
记忆：
1. police [ pE5li:s] n. 警察 The police are authorized to use force when necessary.警察得到授权在必要时使用武力。注意：police是复数名词。
2. policeman [pE5li:smEn] n. 警察 When in trouble, please turn to a policeman.有困难找警察。
3. cop [ kCp] n. 警察（口语） A cop will stop you if you drive through a red light.如果你开车闯红灯，警察会来抓你。
4. policy [ 5pClisi ] n. 政策, 方针 Only good policy can ensure the farmers are willing to do the farming. 只有好的政策才能保证农民愿意种地。
5. politics [ 5pClitiks ] n. 政治, 政治学 It’s every person’s duty to join in politics.每个人都有责任参与政治。
6. political [ pE5litikEl ] adj. 政治的, 行政上的 Because of political reasons, Karl Marx had to move again to London.因为政治原因，卡尔•马克思不得不又搬家到了伦敦。
7. statesman [ 5steitsmEn] n. 政治家 It’s not easy to become a statesman. If you have no gift for acting, you’d better keep off.要成为政治家可不容易。如果你没有表演的天赋，最好别这样想。
8. left-wing [`leftwIN] 左翼 The left-wing party often cares more about the working people.左翼政党通常对劳动者考虑多一些。
9. right-wing [`raItwIN] 右翼 The right-wing parties are often not so friendly to their neighbours.右翼政党对邻居常常没有那么友好。
10. party [ 5pB:ti ] n. 党, 政党 A party of people will climb the mount.有一群人要爬山。
11. polite [ pE5lait] adj. 有礼貌的 It’s polite of him to greet us.他问候我们，很有礼貌。
12. impolite [ impE5lait ] adj. 没有礼貌的 No impolite kid can go with us.没有礼貌的孩子不能跟我们去。
另类阅读：
You’d better not call them cops! We should be polite to the police who keep everything in order. The policeman carries out the policy. But they are not always connected with politics.
与单词：policeman 相关的例句或者名人名言
The policeman is obtaining evidence from the crime scene.
警察正在犯罪现场取证。
The policeman asked the girl to give a description of the criminal.
警察让女孩描述一下罪犯的样子。
