18. _____, an atom becomes an ion.
(A) When electrically charged
(B) It is electrically charged
(C) When electrically charging it
(D) Charging it with electricity

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統計： A(169), B(9), C(23), D(84), E(0) #1598309

我愛阿摩，阿摩愛我2

B1 · 2021/06/19

#4815646

這題是在考減化句的結構

an atom becomes an ion 是主要子句

選項裡的則是副詞子句的減化句

原句是 When it is electrically charged

減化省略掉重複的主詞和無意義的be動詞即是答案，關係副詞when可留可不留

tina30928

2019/03/22

私人筆記#1344094

未解鎖

此句需要連接詞when ，所以沒有whe...

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18. _____, an atom becomes an ion. (A) When electrically charged (B) It is electrically charged (C) When electrically charging it(D) Charging it with electricity