2025年金版学案同步优学智慧作业八年级英语上册外研版
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专练 (
A
)1. —Rebecca, ______ you ______ what to do this Saturday?
—No, I haven't. I may volunteer at the old people's home.
A. have; decided
B. do; decide
C. are; deciding
(
C
)2. —I really like yesterday's dragon boat race. What about you?
—Me too. It's the most wonderful one I ______ ever ______.
A. have; saw
B. will; see
C. have; seen
答案：1. A
解析：根据答语“No, I haven't.”可知问句用现在完成时，结构为have/has+过去分词，主语是you，用have，decide的过去分词是decided，选A。
2. C
解析：根据“ever”可知用现在完成时，结构为have/has+过去分词，see的过去分词是seen，选C。
3. (1) —Have they found out the accident? (作肯定回答)
—Yes,
they have
.
(2) He has turned off the computer. (改为否定句)
He
hasn't turned
off the computer.
(3) I have already found my pen. (改为一般疑问句)
Have you
found your pen yet?
(4) I have cleaned the car. (就画线部分提问)
What
have you
cleaned
?
答案：(1) they have
解析：现在完成时一般疑问句的肯定回答为“Yes, 主语+have/has.”，主语是they，用have。
(2) hasn't turned
解析：现在完成时的否定句在have/has后加not，has not缩写为hasn't，后面接过去分词turned。
(3) Have you
解析：现在完成时的一般疑问句将have/has提到主语前，第一人称I改为第二人称you，already改为yet放句末。
(4) What; cleaned
解析：画线部分“the car”是宾语，用what提问，现在完成时的特殊疑问句结构为“特殊疑问词+have/has+主语+过去分词?”，此处主语是you，用have，cleaned不变。
