2025年金版學(xué)案同步優(yōu)學(xué)智慧作業(yè)八年級(jí)英語(yǔ)上冊(cè)外研版
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專練 (
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：根據(jù)答語(yǔ)“No, I haven't.”可知問(wèn)句用現(xiàn)在完成時(shí)，結(jié)構(gòu)為have/has+過(guò)去分詞，主語(yǔ)是you，用have，decide的過(guò)去分詞是decided，選A。
2. C
解析：根據(jù)“ever”可知用現(xiàn)在完成時(shí)，結(jié)構(gòu)為have/has+過(guò)去分詞，see的過(guò)去分詞是seen，選C。
3. (1) —Have they found out the accident? (作肯定回答)
—Yes,
they have
.
(2) He has turned off the computer. (改為否定句)
He
hasn't turned
off the computer.
(3) I have already found my pen. (改為一般疑問(wèn)句)
Have you
found your pen yet?
(4) I have cleaned the car. (就畫線部分提問(wèn))
What
have you
cleaned
?
答案：(1) they have
解析：現(xiàn)在完成時(shí)一般疑問(wèn)句的肯定回答為“Yes, 主語(yǔ)+have/has.”，主語(yǔ)是they，用have。
(2) hasn't turned
解析：現(xiàn)在完成時(shí)的否定句在have/has后加not，has not縮寫為hasn't，后面接過(guò)去分詞turned。
(3) Have you
解析：現(xiàn)在完成時(shí)的一般疑問(wèn)句將have/has提到主語(yǔ)前，第一人稱I改為第二人稱you，already改為yet放句末。
(4) What; cleaned
解析：畫線部分“the car”是賓語(yǔ)，用what提問(wèn)，現(xiàn)在完成時(shí)的特殊疑問(wèn)句結(jié)構(gòu)為“特殊疑問(wèn)詞+have/has+主語(yǔ)+過(guò)去分詞?”，此處主語(yǔ)是you，用have，cleaned不變。
