a. 关闭的, 限于少数人的【计】 关闭指令【化】 闭合的; 闭路的

• 这里的close是动词，意为"关闭"，而keep后要加形容词，所以要用close的过去分词形式closed作形容词。作形容词用的close意为"近的"、"亲密的"。
  
  ［误］ It is cold outside. Please keep the door close.
  
  ［正］ It is cold outside. Please keep the door closed.
  
  ［析］ 这里的close是动词，意为"关闭"，而keep后要加形容词，所以要用close的过去分词形式closed作形容词。作形容词用的close意为"近的"、"亲密的"。
  

close/closed/closet/shut/open/clothes/cloth/clothing/laundry/collar/dollar
记忆：
1. close [klEJs] v. 关, 结束, 会合　n.结束　adj.近的, 封闭的, 亲密的, adv.　接近 The driver came close to being killed at the accident. 在车祸中司机差一点死了。
2. closed　 [klEJzd] adj. 关闭的 He hurried to the shop, only to find the door closed. 他匆忙赶到商店，却发现关门了。
3. closet　 [5klRzIt] 关起来的地方，n. 壁橱, 储藏室, water closet厕所 He put the bowls into the closet and went out. 他把碗放进壁橱后出去了。
4. shut　v. 关上, 闭上, 关闭（迅速）Seeing the stranger coming, the boy shut the door at once. 看到那个陌生人过来，男孩马上关了门。
5. open　adj. 开着的, 敞开的,开阔的, 营业着的, 公开的v. 打开, 公开, 开放 The policeman pushed the door open. 警察推开了门。
6. clothes　 [klCTz; (?@) klEJz] n. 衣物（复数名词）It’s colder and colder these days. Put on more clothes when you get up. 这些日子天气越来越冷了。起床后要多穿点衣服。
7. cloth　 [klRW; (?@) klCW] n.　布料 The spring festival was coming. She bought some cloth to make new clothes for her daughter by herself. 要过年了。她买了些布料，准备自己为女儿做点新衣服。
8. clothing　 [5klEJTIN] n. 衣物（总称，不可数名词） The clothing in that shop is often in fashion. 那家商店里的衣服常常很时尚。
9. laundry [5lC:ndrI] laun-dry n.洗衣店 I will collect my clothes I sent to the laundry yesterday. 我要去拿我昨天送到洗衣店里的衣服。
10. collar　 [5kClE] n. 衣领 Do you know what are white collar, gray collar and blue collar?你知道什么是白领、灰领，什么是蓝领吗？
11. dollar　 [`dClE(r)] 　n. 美元 Gray collar workers earn more dollars.灰领工人挣钱更多。
另类阅读：
In the closed closet there are some clothes made of cloth worth thousands of dollars. If you open it, you will find a collar of fox fur. Such expensive clothing is often firmly shut.