(1)
不定冠词在句子中最大的语法功能是:用在
可数名词的单数形式前表示泛指--表明一类人或事物区别于它类。例:I am a Chinese. 我是(一个)中国人。This is a book. 这是(一本)书。
(1)用于泛指人或者事She wanted to rent an apartment near the campus. .她想在学校附近租一套房子。Before she left for London, Sally sent me a picture of herself. 萨莉动身去伦敦前送给我一张她的照片。A grammar book is necessary to a language learner. 对语言学习者来说,语法书是很必要的。A teacher likes putting a watch on his / her desk while lecturing .老师讲课时总爱将手表放在讲台上.(希望我的答案能帮助到你!)