[解析]
It was on a warm autumn day that my father and I walk into my new high school.After registered in the classroom,the volunteer took me to my dormitory.Altogether I had five roommates,two of which arrived later.I got to know my new roommate immediately.Although I was quite unwilling to say"Goodbye"to my father,but he had to leave to my hometown in the evening.I suddenly realized I had grown up and that I had to look after me and live independently.Not until then ∧ I know my senior high school life had real begun.
详解:
1.walk改为 walked.考查动词时态.根据"It was on a warm autumn day"可知,事情发生在过去,用一般过去时.
2.registered改为 registering.考查动名词.after是介词,后跟名词、代词或动名词作宾语,用动名词形式.
3.the改为a.考查冠词.volunteer是可数名词,且第一次在文中出现,用不定冠词修饰.
4.which改为whom.考查定语从句.分析句子结构可知,应用whom引导非限定性定语从句,在从句中作介词of的宾语,修饰先行词five roommates.
5.roommate改为roommates.考查名词复数.由上文的"I had five roommates"可知,室友不止一个,故用复数形式.
6.去掉but或but改为yet.考查连词.在英语中,although和but不能同时出现在一个句子中,要去掉but.也可将but改为yet.注意:此处也可将Although删掉,但是语意上没有修改but好.
7.to改为for.考查介词.leave for意为"前往",为固定词组.
8.me改为 myself.考查代词.与句子主语I呼应,应用反身代词,意为"照顾好自己".
9.then后加did.考查倒装句.not until置于句首时,常采用部分倒装,即把助动词放在主语之前.由时间状语then和下文的时态可知,此处用一般过去时,用did帮助倒装.
10.real改为really.考查副词.begun是动词,修饰动词应用副词.