假如你是某國(guó)際學(xué)校高中生李華，最近你發(fā)現(xiàn)學(xué)校圖書(shū)館閱覽室存在高聲喧嘩和亂丟垃圾的現(xiàn)象．請(qǐng)用英語(yǔ)給圖書(shū)館館長(zhǎng)Mr．David寫(xiě)一封信，要點(diǎn)如下：
1．說(shuō)明寫(xiě)信目的；
2．提出合理建議．
注意：1．短文詞數(shù)100左右；
2．可適當(dāng)增加細(xì)節(jié)，以使行文連貫；
3．信的開(kāi)頭和結(jié)尾已給出，不計(jì)入總詞數(shù)．
Dear Mr．David，
I am Li Hua，a student from Class Five，Senior Three．

Recently，I went to the library．I found some bad behaviors．Therefore，I am writing with the purpose of giving some suggestions，which，I hope，would be of some help to create a better environment for readers．（高分句型一）
I noticed some students talking and laughing，whose behaviors badly disturbed other students' study．（高分句型二）What's worse，several students were even eating snacks and throwing rubbish everywhere．Library is a public place where we gain knowledge and relaxation．So rules should be made to restrict people's behavior．Everyone should keep quiet in the reading room．In addition，eating and littering should be forbidden there．Only in this way can we create a clean and tidy place to make students feel comfortable staying there．（高分句型三）

Recently，I went to the library．I found some bad behaviors．Therefore，I am writing with the purpose of giving some suggestions，which，I hope，would be of some help to create a better environment for readers．（高分句型一）
I noticed some students talking and laughing，whose behaviors badly disturbed other students' study．（高分句型二）What's worse，several students were even eating snacks and throwing rubbish everywhere．Library is a public place where we gain knowledge and relaxation．So rules should be made to restrict people's behavior．Everyone should keep quiet in the reading room．In addition，eating and littering should be forbidden there．Only in this way can we create a clean and tidy place to make students feel comfortable staying there．（高分句型三）

Thank you for your consideration．
Yours sincerely，
Li Hua．