一、20个英文单词
1，bitter
adj.味苦的，带来痛苦的，厉害的，激烈而不愉快的，严寒的，痛苦的，尖刻的；v.使变苦；n.苦，苦味物，苦啤酒
The medicine is so bitter that she can't drink it without sugar.
2，bronze
n.青铜，青铜色，青铜器，铜牌；adj.青铜色的，深红褐色的；v.使成青铜色
This statue is made of bronze.
3，gentle
adj.温柔的，文雅的，温和的，平缓的
He was very gentle and gave me hist coat.
4，fisherman
n.渔夫
The fisherman hoped that his net would be full of fish.
5，contrive
v.设计，发明，设计出，设法做到，谋划，策划
He contrived to cool his hot noodles.
6，attribute
v.把...归因于，把...归咎于，认为是...所为；n.特征，属性，标志，象征，定语
Many people's success can be atrributed to hard work and a bit of luck.
7，probe
vt.探测，探索，调查；v.调查；n.探索，调查，探测器，探针
He held a device to probe for the location of the gold.
8，holy
adj.神圣的，圣洁的，虔诚的，神赐的
For the people of the tribe,the totem is a holy symbol.
9，auditorium
n.讲堂，听众席，礼堂
The school's auditoriums are often used to hold speeches and lectures.
10，beg
v.祈求，恳求，乞讨，引起疑问
The little dog is begging his masteer for food.
11，diligent
adj.勤奋的，用工的
Compared with her deskmate,she is a very diligent student.
12，deposit
v.存钱，存放，交押金，沉淀，放下，放置；n.存款，定金，沉淀物，矿床，押金
I deposit money in my piggy bank when i get money.
13，horizontal
adj.水平的，与地面平行的，横向的；n.水平，水平面
The rice crops are planted in long horizontal rows.
14，organism
n.有机体，生物，有机的组织
Many living organisms can only be seen using a microscope.
15，stereo
adj.立体声的；n.立体声（装置）
Music fans love listening to music in hi-fi stereo system.
16，tangle
v.(使)缠结，(使)乱作一团；n.纠缠，纠结，复杂的问题，困惑
That stupid dog got tangled up in our decorations.
17，sprinkle
v.撒，洒，下稀疏的雨；n.小雨，少量
To finish his cupcakes,the baker sprinkled some sugar on the top.
18，ox
n.公牛
The strong ox is angry now.
19，weave
v.编织，织，编进，织布，迂回行进；n.织法，织物
The old lady is weaving cloth on a loom.
20，epoch
n.时期，新时代，纪元
In the Victorian epoch,people's clothes were very different from today's.
二、一元二次函数和方程与不等式
