基础训练篇（25）
On keeping a Diary in English
Keeping a diary in English is one of the 1.___________ (effect) ways to improve our English writing ability.
2._____________ (compare) with other forms of writing, it is shorter and takes 3.____________ time. It can help us to develop the habit of thinking in English. 4.____________ we persist in this practice, gradually we’ll learn how to express ourselves in English. In keeping a diary in English, we certainly run up against many 5.__________. In the first place, 6.____________ often happens that we have trouble finding appropriate words and phrases to give expression to our mind. Secondly, there are many idiomatic ways of saying things in Chinese. And it is extremely hard for us to put them into English properly.
As far as I _7. ______________ (concern), my 8._____________(suggest) is that we should always have a notebook and a Chinese-English dictionary within easy reach. Whenever something beats us, we can first put it down in our notebook and then consult our dictionary. We can also turn to our English teacher for help, if necessary. In short, I believe that it is 9._____ ______ great use to keep a diary in English for 10.___ ________ development of our writing skills.
，则函数f（x）=（1*x）?x-（2*x）（x∈[-2，2]）的最小值等于 ．
