1. 我班上所有学生都积极参与了这次活动。
All the students in my class
took
an
active
part
in the activity.
2. 至于我，上周六上午因为父母不在家，我做了很多家务。
As
for
me
, I did a lot of chores because my parents were away last Saturday morning.
3. 做完家务后，我很累但很开心。
After doing the chores, I was very
tired
but
happy
.
4. 当父母回来看到我所做的一切时，他们对我很满意。
When my parents came back and saw what I had done, they
were
pleased
with
me.
答案：1. took an active part
2. As for me
3. tired but happy
4. were pleased with
解析：
【分析】本题考查英语常用固定短语及一般过去时的运用，需结合中文意思匹配对应的英语表达，同时注意时态和短语的正确形式。第1题对应“积极参与”的固定短语，第2题对应“至于我”的固定表达，第3题直接匹配中文含义，第4题对应“对……满意”的固定短语，还要注意时态变化。
【解析】1. 句子描述过去的动作，“积极参与”的固定短语为take an active part in，take的过去式是took，故填took an active part；2. “至于我”的固定英语表达是As for me；3. “很累但很开心”直接对应tired but happy；4. “对……满意”的固定短语是be pleased with，主语是they，一般过去时be动词用were，故填were pleased with。
【答案】1. took an active part；2. As for me；3. tired but happy；4. were pleased with
【知识点】固定短语、一般过去时
【点评】本题为基础英语短语填空题，主要考查常见固定搭配的记忆和一般过去时的运用，难度较低，适合基础阶段学生练习。
【难度系数】0.7
5. 从那时起，我决定在空闲时间帮父母做更多家务。
From then on, I decided to help my parents with more housework
during
my
spare time
.
答案：5. during my spare time/in my free time
解析：
【分析】本题考查英语中“在空闲时间”的同义固定短语表达，需结合句子语境，找到对应含义的英文短语填入空格，确保符合语法和语义要求。
【解析】句子空格处需表达“在空闲时间”的含义，英语中表示该含义的常用固定短语有“during my spare time”和“in my free time”，二者均符合题目要求，可填入空格。
【答案】during my spare time（或in my free time）
【知识点】固定短语；同义短语
【点评】本题属于基础英语短语填空题，考查常见时间类固定搭配的同义表达，难度较低，学生只要掌握基础词汇短语即可轻松作答。
【难度系数】0.9
