阿摩線上測驗
40. A series of experiments to test the new drug _______ carried out, but so far it still can’t prove to be an
effective drug.
(A) was
(B) were
(C) has been
(D) have been
答案：登入後查看
統計： A(275), B(238), C(1129), D(642), E(0) #3236124
統計： A(275), B(238), C(1129), D(642), E(0) #3236124
詳解 (共 7 筆)
Rita Liang
#6133606
A series of experiments to test the new drug _______ carried out, but so far it still can’t prove to be an effective drug.
一系列檢驗新藥的實驗已經完成，但目前為止仍不能證明是有效的藥。
ㅤㅤ
(A) was
(B) were
(C) has been
(D) have been
ㅤㅤ
主詞 A series of experiements是單數，所以動詞以單數搭配，刪除B和C。語意上選擇C為正確解答。
ㅤㅤ
補充：series單複數同型，如果主詞改成Several series of experiments ...則為複數。
54
0
柔
#6303924
詞彙解析
A series of: 一系列的，指許多相關的事物或事件的集合。
A series of: 一系列的，指許多相關的事物或事件的集合。
experiments: 實驗，測試。
to test: 測試，檢驗。
new drug: 新藥。
carried out: 被執行、實行。
prove: 證明。
effective drug: 有效的藥物。
ㅤㅤ
句子解析
原句: A series of experiments to test the new drug has been carried out, but so far it still can’t prove to be an effective drug.
原句: A series of experiments to test the new drug has been carried out, but so far it still can’t prove to be an effective drug.
A series of experiments:一系列的實驗。
例句: A series of experiments was conducted to test the hypothesis.
to test the new drug:為了測試新藥。
例句: The new drug must undergo rigorous testing before approval.
has been carried out:已經被執行。
文法: 使用現在完成式，表示動作從過去某時開始，一直延續到現在。
例句: The project has been carried out as planned.
but so far:但到目前為止。
例句: The results are promising, but so far, we need more data.
it still can’t prove to be an effective drug:它仍無法證明是一種有效的藥物。
例句: Despite the efforts, the treatment still can’t prove to be effective.
ㅤㅤ
慣用語解析
carry out: 表示執行或實行某個計劃、命令、實驗等。
carry out: 表示執行或實行某個計劃、命令、實驗等。
例句：The scientist carried out a series of tests.
ㅤㅤ
文法解析
主語 (Subject):
主語 (Subject):
A series of experiments 是主語部分。
由於「a series of + 名詞」中，名詞是實驗的集合體，因此動詞應該是單數形式。
動詞 (Verb):
has been carried out 是現在完成時的被動語態，表示這些實驗已經完成。
副詞短語 (Adverbial Phrase):
so far 是副詞短語，用來表示從過去到現在的時間範圍。
6
0
M
#6118220
[A series of experiments] to test the new drug _______ carried out, but so far it still can’t prove to be an effective drug.
此題的主詞是 A series of experiments, 是複數，正確答案應選(D)have been才對，請阿摩更正解答。
2
1
Mai
#6106416
已經進行了一系列測試新藥的實驗，但迄今為止仍不能證明它是一種有效的藥物。
1
0
