2026年快乐暑假天天练八年级英语第48页答案
一、根据句意及首字母提示写单词
1. The p
of China is about 1.4 billion.
2. The number of students has i
by 10% this year.
3. China is a d
country, but it develops very fast.
4. We should keep in t
with our old friends.
5. My parents are p
of my progress.

答案

1. population
2. increased
3. developing
4. touch
5. proud

解析

1. 根据后半句“约14亿”以及首字母p,可知此处表达“人口”,固定结构the population of...表示“……的人口”,应填population。
2. 句中有助动词has,为现在完成时结构,需要填入动词的过去分词;结合句意“学生的数量今年______了10%”以及首字母i,固定搭配increase by表示“增长了……”,increase的过去分词是increased。
3. 根据后半句“但它发展非常快”以及首字母d,可知此处表达“发展中的”,developing country是固定短语,意为“发展中国家”,应填developing。
4. 固定短语keep in touch with sb.意为“和某人保持联系”,符合句意“我们应该和老朋友保持联系”,结合首字母t,应填touch。
5. 固定短语be proud of意为“为……感到骄傲/自豪”,符合句意“我的父母为我的进步感到自豪”,结合首字母p,应填proud。
二、用所给动词的适当形式填空。
1. I
(buy) the bag last year. I
(have) it for one year.
2. He
(borrow) the book two weeks ago. He
(keep) it for two weeks.
3. My grandfather
(die) in 2014. He
(be dead) for 12 years.
4. She
(leave) for Guangzhou yesterday. She
(be away) for a day.
5. We
(join) the club last term. We
(be in) the club for a term.

答案

1. bought; have had
2. borrowed; has kept
3. died; has been dead
4. left; has been away
5. joined; have been in

解析

本题考查一般过去时与现在完成时的用法区分:
1. 当句中出现明确的过去时间状语(如last year、时间段+ago、in+过去年份、yesterday、last term等)时,句子使用一般过去时,谓语动词变为对应的过去式。
2. 当句中出现"for+时间段",表示动作从过去持续到现在的时长时,句子使用现在完成时(结构为have/has + 动词过去分词),结合主语人称选择对应的助动词have/has。
1. 第一空时间状语last year表过去,buy的过去式为bought;第二空for one year表时长,主语为I,现在完成时填have had。
2. 第一空时间状语two weeks ago表过去,borrow的过去式为borrowed;第二空for two weeks表时长,主语为He,现在完成时填has kept。
3. 第一空时间状语in 2014表过去,die的过去式为died;第二空for 12 years表时长,主语为He,现在完成时填has been dead。
4. 第一空时间状语yesterday表过去,leave的过去式为left;第二空for a day表时长,主语为She,现在完成时填has been away。
5. 第一空时间状语last term表过去,join的过去式为joined;第二空for a term表时长,主语为We,现在完成时填have been in。
三、句型转换。
1. He bought the car in 2022.(用for改写)
He
the car for 4 years.
2. I have been to Beijing twice.(对画线部分提问)
have you been to Beijing?
3. She has lived here since she was born.(对画线部分提问)
has she lived here?
4. The old man died ten years ago.(改写句子,不改变句意)
The old man
for ten years.
5. They left last week.(改写句子,不改变句意)
They
since last week.

答案

1. has had
2. How many times
3. How long
4. has been dead
5. have been away

解析

1. 句中出现"for + 时间段"是现在完成时的标志,瞬间动词buy(购买)不能和时间段连用,需要转换为对应的延续性动词have,主语He是第三人称单数,现在完成时结构为"has + 动词过去分词",have的过去分词是had,因此填has had。
2. 划线部分twice表示次数,对次数提问,表达"多少次"的含义,要用固定疑问结构How many times。
3. 划线部分since she was born是表示动作持续时长的时间状语,对时长提问要用固定疑问词组How long。
4. 句中"for + 时间段"要求使用现在完成时,瞬间动词die(死亡)不能和时间段连用,要转换为延续性状态be dead,主语The old man是第三人称单数,现在完成时结构为has been dead。
5. 句中since + 过去时间点是现在完成时的标志,瞬间动词leave(离开)不能和该时间状语连用,要转换为延续性状态be away,主语They是复数,现在完成时结构为have been away。