AIDS seems to follow a pattern of recognizable symptoms. First, after being exposed to the virus, the AIDS patients tends to complain of a fever, sore throat, sore muscles,and diarrhea. Then there seems to be a dormant period ,which can last for three years or longer. Finally, after this period, more serious symptoms begin to emerge.
Every summer, I go to traveling with my family or my best friends. When the new term comes, I will surprisingly find my oral English is much improved. So I firmly believe book is not only the source of knowledge.
上面的句子虽然没有语法问题,但读起来感觉却很奇怪,为什么?因为句子与句子之间并没有一个很好的逻辑关系:"go to traveling with my family" 与后面的"my oral English is much improved" 并没有必然联系,逻辑上讲不通。
I tend to agree that young children can be negatively affected by too much time spent on the computer everyday. This is partly because sitting in front of a screen for too long can be damaging to both the eyes and the physical posture of a young child, regardless of what they are using the computer for.
The main concern is about the type of computer activities that attract children. These are often electronic games that tend to be very intense and rather violent. The player is usually the "hero" of the game and too much exposure can encourage children to be self-centred and insensitive to others.
排中律是指,文章的立意要明确,旗帜鲜明,千万不要和稀泥。比如像这样的作文题目 "Some people think that students should go to boarding schools instead of living at home. Do you agree or disagree?" 我们应该在文章中明确给出自己的意见:赞同上寄宿学校或者反对,而不是模棱两可,观点不清。
Judging from the current tendency, I am inclined to believe that traditional shopping will disappear gradually and the reasons are as follows: For one thing, the online shopping can bring convenience to people’s life ... For another, the merchandizes in online shops are much cheaper than that in those real shops because... Everybody tends to choose the online shopping in this case.
在这里也推荐一本书,剑桥大学出版社的 English Vocabulary in Use Advanced
这本书的牛逼之处在于,它详细列出了常见的100个话题下可能出现的词汇以及表达。比如对于学习考试类的话题,它会列出"cram for exam,bury yourself in your books,know the subject inside out" 等地道的词语和表达,还有相关素材,写作文时可以直接用上。