9. The school's English Corner every Friday afternoon last term and
attracted many students.

A.holds
B.held
C.is held
D.was held

9.D

【分析】首先根据句中的时间状语“last term（上学期）”确定句子时态为一般过去时；再分析主语“The school's English Corner”与谓语动词“hold”的逻辑关系，主语是动作的承受者，需使用被动语态；最终结合时态和语态确定正确选项。
【解析】1. 时态判断：时间状语“last term”表示过去的时间，因此句子需用一般过去时，排除一般现在时的A、C选项；2. 语态判断：主语“The school's English Corner”是“hold（举办）”这个动作的承受者，即“英语角被举办”，需使用被动语态，排除主动语态的B选项；3. 一般过去时被动语态的结构为“was/were + 动词过去分词”，主语是单数，因此用“was held”，对应选项D。
【答案】D
【知识点】一般过去时的被动语态；动词时态与语态
【点评】本题考查英语语法中时态和语态的基础应用，解题思路清晰，只需先抓时间状语定时态，再分析主被动关系定语态，属于难度较低的基础题。
【难度系数】0.5

10. The traditional folk song by local artists at the cultural festival last
weekend.

A.sings
B.sang
C.is sung
D.was sung

10.D

【分析】
首先分析句子的语态：主语“the traditional folk song（传统民歌）”是动作“sing（唱）”的承受者，即民歌是“被唱”，所以需使用被动语态，排除主动形式的A（一般现在时主动）和B（一般过去时主动）；接着分析时态：句中时间状语“last weekend（上周末）”表示过去的时间，因此被动语态需用一般过去时，一般现在时被动语态（is sung，选项C）不符合过去时间的要求，最终确定答案。
【解析】
1. 判断语态：主语the traditional folk song是动作sing的承受者，需用被动语态，排除主动语态的A、B选项；
2. 判断时态：时间状语last weekend为过去时间，故被动语态用一般过去时，结构为“was/were + 过去分词”；主语是单数，be动词用was，sing的过去分词是sung，因此构成was sung，对应选项D。
【答案】
D
【知识点】
一般过去时的被动语态；被动语态的用法
【点评】
本题考查英语中被动语态的时态应用，需先根据主语和动作的关系确定语态，再结合时间状语确定时态，属于基础语法题，难度适中。
【难度系数】
0.6

二、将下列句子改为被动语态
1. They didn't ask him to join the club.
He to join the club by them.
2. They planted the trees in 2022.
The trees by them in 2022.
3. She made the cake yesterday.
The cake by her yesterday.
4. My sister gave me a pen last week.
A pen me by my sister last week.
5. The teacher let the students clean the classroom.
The students clean the classroom by the teacher.
6. They repaired the bike in 2021.
The bike by them in 2021.
7. He drew the picture yesterday.
The picture by him yesterday.
8. People built this park in 2020.
This park by people in 2020.
9. The teacher corrected our homework carefully yesterday.
Our homework carefully by the teacher yesterday.
10. They invited many guests to the school opening ceremony.
Many guests by them to the school opening ceremony.
11. My father repaired the broken radio last weekend.
The broken radio by my father last weekend.
12. The workers finished the new road project in 2023.
The new road project by the workers in 2023.
13. They showed the new technology exhibition to the public last month.
The new technology exhibition to the public by them last
month.
14. The police found the lost child in the park late last night.
The lost child in the park by the police late last night.
15. She posted the important documents to the company yesterday.
The important documents to the company by her yesterday.

1. wasn't asked 2. were planted
3. was made 4. was given to
5. were let to 6. was repaired
7. was drawn 8. was built
9. was corrected 10. were invited
11. was repaired 12. was finished
13. was shown 14. was found
15. were posted

【分析】
将主动句改为被动句，需遵循以下步骤：1. 确定原句时态（本题均为一般过去时）；2. 把主动句的宾语作为被动句的主语；3. 根据被动语态结构“主语+was/were+及物动词过去分词”，结合主语单复数确定be动词形式（单数用was，复数用were）；4. 注意特殊动词的被动规则，如“give sb sth”变被动常用“sth be given to sb”，“let sb do sth”变被动需还原to；5. 否定句在be动词后加not。
【解析】
1. 原句为一般过去时主动，主语he是单数，被动be动词用was，主动谓语ask的过去分词是asked，否定式为wasn't asked，故填wasn't asked。
2. 主语the trees是复数，一般过去时被动be动词用were，plant的过去分词是planted，故填were planted。
3. 主语the cake是单数，be动词用was，make的过去分词是made，故填was made。
4. 原句是双宾语结构，直接宾语a pen作被动主语，需用“be given to+间接宾语”，主语a pen单数，be动词was，故填was given to。
5. 原句谓语是let，被动需还原to，主语the students是复数，be动词用were，故填were let to。
6. 主语the bike是单数，be动词was，repair的过去分词是repaired，故填was repaired。
7. 主语the picture是单数，be动词was，draw的过去分词是drawn，故填was drawn。
8. 主语this park是单数，be动词was，build的过去分词是built，故填was built。
9. 主语our homework视为单数，be动词was，correct的过去分词是corrected，故填was corrected。
10. 主语many guests是复数，be动词were，invite的过去分词是invited，故填were invited。
11. 主语the broken radio是单数，be动词was，repair的过去分词是repaired，故填was repaired。
12. 主语the new road project是单数，be动词was，finish的过去分词是finished，故填was finished。
13. 主语the new technology exhibition是单数，be动词was，show的过去分词是shown，故填was shown。
14. 主语the lost child是单数，be动词was，find的过去分词是found，故填was found。
15. 主语the important documents是复数，be动词were，post的过去分词是posted，故填were posted。
【答案】
1. wasn't asked 2. were planted
3. was made 4. was given to
5. were let to 6. was repaired
7. was drawn 8. was built
9. was corrected 10. were invited
11. was repaired 12. was finished
13. was shown 14. was found
15. were posted
【知识点】
一般过去时的被动语态；双宾语被动转换；特殊动词被动结构
【点评】
本题是初中英语被动语态的基础练习题，核心考察一般过去时被动语态的构成规则，以及双宾语动词、使役动词let在被动转换中的特殊用法，是英语语态知识点的基础应用，需熟练掌握时态匹配、be动词单复数搭配及过去分词的正确形式。
【难度系数】
0.8