所谓语法，就是句子中词与词的关系，即符合那个语言词语关系的规律。对于中国的英语学习者来说，学习语法的主要问题不仅仅是一个接受的过程，也是一个反思的过程，因为在很多... 详情>>
2019-06-20
Getting an erection is no problem for male ostriches – but maintaining it for more than a few seconds is a different matter. The birds may have inherited their underpowered genitalia from their dinosaur ancestors. The penis is a vital pie... 详情>>
2019-06-19
DURBAN, South Africa — For 17 years, officials from nearly 200 countries have gathered under the auspices of the United Nations to try to deal with one of the most vexing questions of our era — how to slow the heating of the planet. Eve... 详情>>
2019-06-19
While I was reading William deBuyss new book, A Great Aridness, two massive dust storms reminiscent of the 1930s raged across the skies of Phoenix and of Lubbock, Texas. Newspapers blamed them on the current drought in the West, which is pr... 详情>>
2019-06-19
Devils Lake is where I began my career as a limnologist in 1964, studying the lakes neotenic salamanders and chironomids, or midge flies. Back then, the lake covered about 80 square kilometers, had a maximum depth of about 3 meters and held... 详情>>
2019-06-19
任何类型的英语阅读考试都可以分为三种题型--点题，线题，面题。点题就是点到点对应的题目，在题干中找到一个点（关键词），然后在文章中找到对应点（一般被改写），根据这个... 详情>>
2019-06-19
所谓的意群就是指几个相邻的表示同类意思的词，而读意群就是说把这几个词用一眼看下来，可以使阅读速度成数倍的提高。这种能力的训练是帮你拿到雅思阅读6.5分以上的最重要的训... 详情>>
2019-06-19
雅思阅读段句搭配题思维策略一： “观察形式， 认清本质， 因地制宜” 这种题型存在两种出题形式，一种是 “有NB： YOU MAY CHOOSE ANY LETTER MORE THAN ONCE”， 一般情况下所给出的题目中会... 详情>>
2019-06-13
