dad (daddy) n. 爸爸
daily [ˈdeɪlɪ] a.ad.n. 每日的；日常的；每天；日报
daily life 日常生活
dance [dɑːns; (US) dæns] n.&vi. 跳舞
dance music 舞曲
A group of aunts are dancing on the square.
danger [ˈdeɪndʒə] n. 危险
in danger 处于危险中
in danger of 处于......的危险中
The building is in danger of collapse （倒塌）.
out of danger 脱离危险。
After the treatment, he is now out of danger. 经过治疗，他已经脱离危险了。
dangerous [ˈdeɪndʒərəs] a. 危险的
dark [dɑːk] a. 黑暗；暗处；日暮;黑暗的；暗淡的；深色的
before/after dark 天黑之前/之后
date [deɪt] n. 日期；约会
date from/back to 追溯到（某一时间）
The Great Wall dates back to Qin Dynasty.
长城的历史可以追溯到秦朝。
daughter [ˈdɔːtə(r)] n. 女儿
day [deɪ] n. 天; 日；白天
day by day 一天天地，逐日地
Spring is coming and the weather gets warmer day by day.
春天来了，天气一天天变暖了。
one day (过去或将来的)某一天：
You will regret one day if you don’t work hard.
如果不努力的话，总有一天你回后悔的。
the other day 几天前
He can’t be abroad, I met him on the street the other day.
他不可能出国了，我几天前在街上还碰到过他。
the day before yesterday 前天
the day after tomorrow 后天
these days 如今
day off 休息日
dead [ded] a. 死的；无生命的
deaf [def] a. 聋的
deaf-aid 助听器
deal [diːl] v. 量，数额；交易
deal with 对付，处理
How will you deal with the problem?
你将如何处理这个问题？
a great deal of+不可数名词 大量的......
I have a great deal work to do.
我有大量的工作要做。
dear [dɪə(r)] a. 亲爱的
December [dɪˈsembə(r)] n. 十二月
decide[dɪˈsaɪd] v. 决定；下决心
He decided to leave for Guangzhou alone.
decision [dɪˈsɪʒ(ə)n] n. 决定；决心
decide on 决定
make a decision 作出决定
deep [diːp] a. ad. 深的;深；深厚
degree [dɪˈɡriː] n. 程度；度数；学位
delicious [dɪˈlɪʃəs] a. 美味的，可口的
dentist [ˈdentɪst] n.牙科医生
There is something wrong with my son’s teeth.He needs to see the dentist.
我儿子的牙齿有点毛病，他得去看牙医。
depend [dɪˈpend] vi. 依靠；依赖；指望；取决于
depend on 取决于
She depends on you to help her.
describe [dɪˈskraɪb] vt. 描写，叙述
The police asked me to describe exactly what it happened.
desk [desk] n. 书桌，写字台
at desk 在学习
develop [dɪˈveləp] v.vt. (使)发展；(使)发达；冲洗(照片)
developing adj. 发展中的
developed adj. 发达的
She is taking a course to develop her computer skills.
development[dɪˈveləpmənt] n. 发展；发达；发育；开发
The development of the medicine industry will take several years.医药工业的发展要经过几年的时间。
dialogue [ˈdaɪəlɔɡ; (US) ˈdaɪəlɔːɡ](AmE dialog) n. 对话
diary [ˈdaɪərɪ] n. 日记；日记簿
keep a diary 记日记
dictionary [ˈdɪkʃənərɪ; (US) ˈdɪkʃənerɪ] n. 词典，字典
look up…in the dictionary 在字典里查阅......
die [daɪ] v. 死
Last year he died of lung cancer.
difference [ˈdɪfərəns] n. 不同
make a difference between A and B 区别对待A和B
different[ˈdɪfərənt] a. 不同的，有差异的
be different from 和......不同
difficult [ˈdɪfɪkəlt] a. 难的；艰难的；不易相处的
近义词辨析：difficult /hard
difficult 和 hard 都有“困难的”意思，区别是diffficult侧重于智力上的难题，hard 侧重体力上的困难。
It is hard for me to climb up the hill alone.
独自一人爬上那座山对我来说太难了。
The problem is difficult for me to work out.
我很难解出这道难题。
difficulty[ˈdɪfɪkəltɪ] n. 困难；费力
have difficulty (in) doing sth. 做某事有困难
We have difficulty (in) passing the exam.
要通过这次考试，我们有困难。
dig(dug, dug) [dɪɡ] v. 挖(洞、沟等)；掘
dining n. 吃饭，就餐
dinner [ˈdɪnə(r)] n. 正餐，宴会
at dinner 在吃饭期间
direct [dɪˈrekt, daɪˈrekt] a.vt. 直接的；直达的；直截了当的；指挥；指导；监督；管理；指挥（演奏）；导演（电影）
I directed the traveler to the college.我告诉了这个旅行者去学院的路。
Who directed the film “Gone with wind?” 电影《飘》是谁导演的？
direction [dɪˈrekʃ(ə)n, daɪˈrekʃ(ə)n] n. 方向；方位
director [dɪˈrektə] n. 导演，部门负责人
dirty [ˈdɜːtɪ] a. 脏的
discover[dɪˈskʌvə(r)] vt. 发现
The lost bike was discovered at the bus stop.
discovery [dɪˈskʌvərɪ] n. 发现
discuss[dɪsˈkʌs] vt. 讨论，议论
discuss sth with sb 和某人讨论某事
Jack was discussing the game with his friends when I got there.
discussion [dɪsˈkʌʃ(ə)n] n. 讨论，辩论
under discussion 正在讨论中
disease [dɪˈzi:z]n. 疾病；弊病
a serious disease 严重的疾病
dish [dɪʃ] n. 盘，碟；盘装菜；盘形物
divide [dɪˈvaɪd] vt. 分；划分
divide…into… 把…...和…...分开
The teacher divided our class into four groups.
do(did, done) [dʊ, duː] v.&aux.v 做，干(用以构成疑问句及否定句。第三人称单数现在时用does)
do a good job 干得不错
He did a very good job in the exams. 他的考试成绩考得很好。
do one’s best 尽自己最大努力
If you want to pass the exam, you must do your best from now on.要想通过考试，从此你必须尽自己最大努力。
do some shopping 购物
do well in 在……方面干得好
He did badly in English , but he does well in it now .
他过去英语不好，现在英语学得好。
do with 处置，对付What will you do with it？你会怎么处置它呢？
doctor [ˈdɔktə(r)] n. 医生，大夫；博士
see a doctor 看医生
dog[dɔɡ; (US) dɔːɡ] n. 狗
Every dog has his day.人人皆有得意日。
dollar [dɔlə] n. 元(美国、加拿大、澳大利亚等国货币单位)
door [dɔː(r)] n. 门
out of doors 在户外
double [ˈdʌb(ə)l] a.n. 两倍的；双的;两个；双
doubt [daʊt] n.&vt. 怀疑；疑惑
without doubt 无疑地
I doubt whether he will come.
down [daʊn] prep.ad. 沿着，沿……而下；向下
download [ˌdaʊnˈləʊd] v.下载
downstairs [ˌdaʊnˈsteəz] n. 楼下 adj. 楼下的 adv. 在楼下
fall downstairs 从楼梯上摔下
draw(drew, drawn) [drɔː] v. 绘画；绘制；拉，拖；提取(金钱)
Mary drew a house on the paper.
drawer [drɔ:ə] n. 抽屉
dream(dreamt, dreamt或-ed, -ed) [driːm] n.&vt. 梦，梦想
have a day dream 做白日梦
dream of/about 梦想/梦见......
I dreamt of becoming a scientist when I waas young.
dress[dres] n.v. 女服，连衣裙；(统指)服装；童装；穿衣；穿着
近义词辨析：dress / wear/ put on
dress 后面接人作宾语，意思是“给……穿衣服”。
wear 后面接衣服名词，指状态，意思 是“穿着……”。
put on 侧重于动作，后面接衣服名词，意思 是“穿上......”
My son is old enough do dress himself.我的儿子长大了，能自己穿衣服了。
It’s cold outside. Better put on more clothes. 最好多穿点衣服。
dress oneself 自己穿衣服
The little girl is old enough to dress herself.
drink(drank, drunk) [drɪŋk] v.n. 喝，饮;饮料；喝酒
My uncle likes drinking beer.
drink up 喝光
drive(drove, driven) v. 驾驶，开(车)；驱赶
In Britain,it is illegal to drive when you are drunk.（在英国喝醉了酒开车是违法的。)
driver[ˈdraɪvə(r)] n. 司机，驾驶员
driving-license 驾照
driver’s license 驾照
drop [drɔp] n.v. 滴;掉下，落下；投递；放弃
The bottle dropped and broke.
dry [draɪ] v.a. 使……干；弄干；干的；干燥的
dry up 干涸
She sat in front of the fire to dry her wet clothes.
duck [dʌk] n. 鸭子
dumpling [ˈdʌmplɪŋ] n. 饺子
during [ˈdjuərɪŋ; (US) ˈdɪərɪŋ] prep. 在……期问；在……过程中
on/off duty 值/不值班
DVD n.数字化视频光盘（Digital Video Disk）