阿摩線上測驗
124. _______ the instructions carefully, the technician was able to assemble the device without any assistance.
(A) Read
(B) Having read
(C) To read
(D) Will read
統計： A(72), B(218), C(89), D(3), E(0) #3805132
詳解 (共 2 筆)
答案是 (B) Having read。✅
完整句子：
Having read the instructions carefully, the technician was able to assemble the device without any assistance.
? 關鍵：分詞構句 + 先後順序
原句可以還原成：
After the technician had read the instructions carefully, he was able to assemble the device...
也就是：
先讀完說明 → 再組裝設備
當前面的動作先於後面的主要動作發生，常用：
Having + 過去分詞 (p.p.)
因此：
Having read the instructions...
= 在讀完說明之後……
四個選項
| 選項 | 結構 | 判斷 |
|---|---|---|
| (A) Read | 過去式／原形形式 | ❌ 不適合此分詞構句 |
| (B) Having read | 完成式分詞構句 | ✅ |
| (C) To read | 不定詞 | ❌ 表目的較常見 |
| (D) Will read | 未來式 | ❌ |
⭐ 很重要的考試觀念
比較這兩種：
① V-ing：兩個動作同時或先後關係不強
Following the instructions, the technician assembled the device.
= 按照說明，技術人員組裝了設備。
② Having + p.p.：前面的動作明確先完成
Having read the instructions, the technician assembled the device.
= 讀完說明後，技術人員才組裝設備。
所以這題看到：
_______ the instructions carefully, the technician was able to assemble...
「讀說明」明顯是「能夠組裝」的前置動作，因此選：
? (B) Having read
