今天是博士英语作业的deadline，一大早爬起来做作业，发现好难，前不久周明博士来系里作报告推荐了英库，用了一把，作业20分钟就搞定了，英库真是天才。
作业如下，这里不表，先说说几个好用的功能。
（1）选择追加形容词搭配
比如第三题，我想知道option有哪些前缀形容词可以修饰，就用【adj. option】搜索，结果很满意。
（2）选择合适的名词
比如第七题，我想知道享受特权，这个特权怎么说，就用【enjoy 特权】搜索，结果依然很满意。
不过还是有些不尽如人意的地方，当然人家做这个不是为了给我做作业，但还是有些功能挺实用的，比如
我想搜索The moon can be said to be like a large mirror 中间be said to be like可以替换成什么，如果可以搜索
【The moon can{}a large mirror.】就好了，可以让检索引擎自动提供{}中可能出现的短语。
这个功能在写论文的时候，很实用。
英库网址：www.engkoo.com
下面是通过英库完成的作业：
Exercise: Improve the underlined parts of the following sentences to be more acceptable in professional papers.
The strength of wind can be harnessed to generate electricity.
2. Smoke particles and other air pollutants are often found in the atmosphere, thus forming smog.
Smoke particles and other air pollutants are often monitored in the atmosphere, thus forming smog.
3. Trash recycling is becoming an increasingly good option for waste disposal.
Trash recycling is becoming an increasingly right option for waste disposal.
4. The moon can be said to be like a large mirror which throws back the sun’s light to the earth.
The moon can be imagined to be a large mirror which reflects the sun’s light to the earth.
5. Fossils are the traces of plants and animals of past geological ages which have been stayed in the Earth’s crust.
Fossils are the traces of plants and animals of past geological ages which buried in the Earth’s crust.
6. In 1791, on President Washington’s request, L’Enfant put in plans for the capital city at Washington.
In 1791, on President Washington’s request, L’Enfant layout plans for the capital city at Washington.
7. Big businesses enjoy certain rights that smaller ones do not have.
Big businesses enjoy certain privileges that smaller ones do not have.
8. The border incident has something to do with the territory dispute left over from the previous government.
The border incident is due to the territory dispute left over from the previous government.
9. It is difficult to tell clearly which flower is artificial and which is natural.
It is difficult to distinguish between artificial flower and natural flower.
10. No seats will be left over for the New Year’s concert if one does not get ready for them a few months in advance.
No seats will be available for the New Year’s concert if one does not book them a few months in advance.