这篇文档是关于21春季电子科技专业《大学英语1(专科)》课程的在线作业3的答案。虽然标签标记为“作业”,但具体内容是一系列英语选择题的答案,涉及到语法、词汇和句子结构等多个方面。以下是对这些题目涉及知识点的详细解释:
1. 题目中的动词时态和语态:
- "one could say that the fish _______ itself by change."
此处考查的是动词的时态和语态。根据句子结构,"the fish"与"free"之间是被动关系,且"ended there"表明动作发生在过去,所以应该用一般过去时的被动语态,正确答案是D. was freed。
2. 形容词辨析及非谓语动词:
- "the woman beside me seemed ________ and jumped up from her seat."
这里考查形容词与非谓语动词的用法。"seem"后面接形容词,表示状态,因此选择B. frightened,表示"害怕的"。
3. 连词辨析:
- "_______ you like it or not, you’ll have to do it."
此处需要一个引导条件句的连词,Whether与or not搭配,表示"无论是否",故选A. Whether。
4. 介词短语辨析:
- "I looked for gifts _______ just fulfilling a duty."
"instead of"意为"代替,而不是",适合此句语境,因此正确答案是B. instead of。
5. 介词与固定搭配:
- "it was always on at the same time every day _______ Saturday and Sunday."
"except for"意为"除了……之外",适合表示排除特殊情况的情况,所以选择A. except for。
6. 动词短语辨析:
- "My friend helped me _______ my cat."
"look after"意为"照顾",与情境相符,故选A. look after。
7. 宾语从句连接词:
- "Do not do to others _______ you would not have them to do to you."
此处是宾语从句,"what"在这里作"do"的宾语,符合句意,所以正确答案是A. what。
8. 形容词辨析:
- "choose a ______system of education."
"proper"意为"适当的,合适的",符合选择教育体系的情境,所以选D. proper。
9. 现在分词作定语:
- "an old blind woman ______ a stick around between her hands."
"turning"在此处作定语,表示女子正在转动手里的棍子,因此选B. turning。
10. 固定搭配:
- "She will see to _______ that my personal things are kept in their proper places."
"see to it"意为"确保,留意",是一个固定搭配,所以选C. it。
11. 过去分词作定语:
- "a number of walls ________ brick and stone"
"built of"表示"由……建造的",作walls的后置定语,所以选D. built of。
12. 工作相关短语:
- "lose time _______ but not to lose her joy."
"at work"表示"在工作中",适合描述工作场景,所以选B. at work。
13. 比较级与介词搭配:
- "better ________ the place we were living _______."
"than"用于比较,"in"表示"在……里",所以选D. than…in。
14. 动词短语辨析:
- "he had to _______ his anger somewhere."
"let out"意为"发泄,释放",符合句意,所以选D. let out。
15. 介词与动词固定搭配:
- "worked ______ that body and face"
"work on"表示"对……进行工作,努力",故选B. on。
16. 动词辨析:
- "construction…has been ______ for two weeks"
"delayed"意为"推迟,延误",适合描述因天气原因导致的工程延期,所以选D. delayed。
17. 介词与动词短语:
- "dropped the pennies _______ the two dimes"
"in with"表示"加入到……中",此处表示把硬币放入手中,所以选C. in with。
18. 对……负责:
- "Who is responsible _______ the education of the children?"
"be responsible for"是固定搭配,表示"对……负责",所以选A.
以上就是文档中涉及的英语知识要点,包括动词时态、语态、形容词用法、连词辨析、介词短语、动词短语、非谓语动词以及固定搭配等。掌握这些知识点有助于提高英语阅读、写作和理解能力。