初高中英语词汇用法突破夯实基础worst和work和worth等
worst  [wə:st]                ‘
adj. ( bad的最高级)最坏的比‖adv.最坏，最糟
I've seen bad work, but this is the worst.我见过做得很差的工作，但这是最差的。

worth  [wɜːθ]
adj ○1.值…钱. ○2. 值得（做某事）：
The picture is worth at least twenty pounds.这张图片至少位20英镑。
The novel is worth reading.这部小说值得一读。
[ sth. be worth doing某事值得做]:，
抗遗忘英语单词速记
随时随地背单词
不知不觉背单词
单词不用记

work  [wɜːk]
v. 1.工作： 
e.g.They work from morning till night. 他们从早到晚工作。.
2 服务于：
e.g.He works for a publishing company. 他在出版社服务。
 3. 动作；生效：
e.g.My watch doesn’t work.我的表坏了。
The shampoo worked really. 那个洗发水真的很好用。                      
短语：1.work out 解答，计算出：
e.g.Though we thought it over, we still couldn’t work it out.
虽然我们仔细想了，但还是做不出答案。
2.work hard at 努力学习…：
e.g.As a student, we must work hard at all the subjects .
做为一名学生，我们必须努力学习每门功课
n 1.工作：
e.g.Few people like hard work. 很少人喜欢粗重的工作。
 2. 职业：
e.g.He found work an the bank. 他在银行找到工作。
 3. 作品：
e.g.the works of Shakerspeare 莎士比亚的作品  
短语：1..at work 在工作：
e.g.At this time of day,my parents are both at work.
     每天的这个进候，我的你父母都在上班。 
2. out of work 失业：
e.g.Lots of people are out of work in the USA today.如今在美国有很多人失业。

Killer Rabbits
      You’d never think of rabbits as dreadful, destructive creatures, would you? Rabbits are cute and love-able. However, Australians discovered (21) ________ harm these cute creatures can do the hard way. 
      Rabbits were introduced to Australia in 1788 as food animals. By 1827, they were running around large estates, and in 1859, disaster struck. A man released 12 wild rabbits onto his property for hunting and he (22) ________ have thought that was harmless fun. But Australia has no predators（捕食者）(23) ________ (adapt) to killing rabbits and none of the diseases that kept their populations (24) ________ control in Europe. The loose rabbits bred like, well, rabbits, and began to take over the countryside. Within a few decades, there were millions. By 1950, there were 600 million rabbits in Australia. 
       Six hundred million hungry rabbits could do real harm. They caused more damage than any other species introduced to the continent. They ate native plant species (25) ________ they disappeared. They competed for food and shelter with native animals. they caused the extinction or endangerment of numerous plant and animal species. And they were a nightmare for cattle and sheep farmers, (26)________ animals couldn't get enough grass to eat and starved.
The rabbits did some good, of course. They provided food for poor families. They supported fur industries. But their impact on the environment and major livestock economy was too negative (27)________(ignore). People tried trapping them. They even built a huge wall against them. But (28)________(effective) weapon was a virus.
(29) ________(test) multiple times, the deadly myxoma virus was released on Australia's rabbits in 1950. The virus had been developed very carefully to affect only rabbits. Nearly 100 percent of the rabbits who caught the disease (30) ________(die).Populations fell. It was a huge success. Cattle and sheep farming recovered gradually, and threatened plants were better protected. Eventually, rabbits became resistant to the virus.

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