Unit_8_语法分层练习_(B层提升卷)_答案解析_新人教八下资料包_30语法总结+语法分层练习(全)_26新八下英语单元语法分层练习（答案解析）

Unit 8 语法分层练习 (B 层提升卷)
- 答案及解析
【答案速查表】
一.1 一.2 一.3 一.4 一.5
B C C A A
一.6 一.7 一.8 一.9 一.10
B A B B B
一.11 一.12 一.13 一.14 一.15
B A A B C
二.1 二.2 二.3 二.4 二.5
have had has been has been dead has been away How long
三.1 三.2 三.3 三.4 三.5
borrowed -> died -> been arrived -> has left -> have seen ->
kept dead been left saw
【详细解析】
一、单项选择 解析
 第1题: [ B ] 解析：for two weeks -> kept (延续)。
 第2题: [ C ] 解析：for two years -> has been dead。
 第3题: [ C ] 解析：since 1990 -> has been in the Party (join 是瞬间)。
 第4题: [ A ] 解析：for two hours -> I have been here (arrive 是瞬间)。
 第5题: [ A ] 解析：since three years ago -> have learnt。
 第6题: [ B ] 解析：saw (过去时) -> just now。
 第7题: [ A ] 解析：Since 2018 (时间段回答) -> How long。
 第8题: [ B ] 解析：for half an hour -> has been on。
 第9题: [ B ] 解析：It is ... since ... + 一般过去时 (met)。
 第10题: [ B ] 解析：yesterday -> left。
 第11题: [ B ] 解析：Where is Tom? -> has gone to。
 第12题: [ A ] 解析：has been away (leave 的延续状态)。
 第13题: [ A ] 解析：so far (到目前为止) -> 现在完成时。
 第14题: [ B ] 解析：for a week -> has been in。
 第15题: [ C ] 解析：last week -> bought。
二、句型转换 解析
 第1题: [ have had ] 解析：buy -> have。
 第2题: [ has been ] 解析：join -> be in。
1 第3题: [ has been dead ] 解析：die -> be dead。
 第4题: [ has been away ] 解析：left -> be away。
 第5题: [ How long ] 解析：略
三、短文改错 解析
 第1题: [ borrowed -> kept ] 解析：for three days 需延续。
 第2题: [ died -> been dead ] 解析：for two years 需状态。
 第3题: [ arrived -> been ] 解析：arrive 是瞬间动词。
 第4题: [ has left -> left ] 解析：since 后接过去时句子。
 第5题: [ have seen -> saw ] 解析：just now 用过去时。
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