dozen  n. 一打，十二个
[特征]
dozen就是“十二个”，实际上“一打”的“打”就是dozen的音译。
- There are a dozen of pencils on the desk.
桌子上有一打铅笔。
[考点]
dozen和数词或many，several等词连用时，并不加s。
- I want five dozen of these eggs.
我要五打这种鸡蛋。
[备考必背] 重要词组
dozens of 很多，许多（注意这里的dozen加s。）
- There were dozens of people there.
那里有许多人。

dream  v. 做梦，梦见  n. 梦，梦想
[特征]
a frightening dream 一个可怕的梦
- The girl never dreamed that such a thing could happen!
这个女孩从没想到竟会发生这种事！
[备考必背]
①dream既可作及物动词也可作不及物动词，但“我做了一个梦”一般不说I dreamed a dream.，而说成I had a dream.。但有时为了强调，往往也说I dreamed a strange dream.。
②重要词组：dream of/about 梦到……
- She sometimes dreams of home.
她有时梦见自己的故乡。

drown  v. 溺死，淹死
[特征]
- The child fell into the river and drowned!
这个小孩掉到河里淹死了！
[贴心叮咛]
要特别注意drowned和drowning的不同用法。
[备考必背]
①重要词组
be/get drowned 淹死，溺死  drown oneself in 沉溺于，埋头于
- He drowned himself in work.
他埋头工作。
②辨析drowned和drowning
drowned的意思是“已经淹死了”；drowning是“快淹死了”，但还没有死。
- Three sailors were drowned when the ship went down.
船下沉时三个水手淹死了。
- He dived from the bridge and rescued the drowning child.
他从桥上跳入水中，救起溺水的孩子。

due  adj. 应得的；应付的；预期的
[特征]
- The salaries due to the employees will be paid this afternoon.
雇员们应得的工资将在今天下午付给他们。
- The plane is due at six.
飞机预计六点到。
- When is the train due at Beijing?
火车什么时候到北京？
[贴心叮咛]
due是中学阶段一个非常重要的单词，常出现在考试中。同学们对它一定要格外注意。
[考点] 重要词组
due to 因为……，由……引起   be due to do 预期做……
- Her illness was due to bad food.
她的病逝吃了变质的食物造成的。
- The teacher is due to make two speeches tomorrow.
老师预期明天演讲两次。