五、根据所给的词汇和标点，用一般过去时造句。
1. I / wash / the dishes / last night /.

2. she / not / go / to the party / last week /.

3. why / you / cry / yesterday /?

4. we / visit / the zoo / last month /.

5. he / leave / his keys / at home / this morning /?

1. I washed the dishes last night.
2. She didn't go to the party last week.
3. Why did you cry yesterday?
4. We visited the zoo last month.
5. Did he leave his keys at home this morning?

【分析】首先明确一般过去时的不同句式结构：陈述句结构为“主语+动词过去式+其他+时间状语”；否定句结构为“主语+didn't+动词原形+其他+时间状语”；特殊疑问句结构为“特殊疑问词+did+主语+动词原形+其他+时间状语”；一般疑问句结构为“Did+主语+动词原形+其他+时间状语”。再结合每个小题给定的词汇和标点，对应结构组句即可。
【解析】1. 本题为一般过去时陈述句，动词wash的过去式是washed，按结构组合为：I washed the dishes last night.
2. 本题为一般过去时否定句，用didn't加动词原形go，组合为：She didn't go to the party last week.
3. 本题为一般过去时特殊疑问句，疑问词why后接did，主语you加动词原形cry，组合为：Why did you cry yesterday?
4. 本题为一般过去时陈述句，动词visit的过去式是visited，组合为：We visited the zoo last month.
5. 本题为一般过去时一般疑问句，句首用Did，主语he加动词原形leave，组合为：Did he leave his keys at home this morning?
【答案】1. I washed the dishes last night.
2. She didn't go to the party last week.
3. Why did you cry yesterday?
4. We visited the zoo last month.
5. Did he leave his keys at home this morning?
【知识点】一般过去时 陈述句 疑问句
【点评】本题考查一般过去时不同句式的正确运用，需掌握动词过去式变化及各类句式的结构规则，属于基础语法题。
【难度系数】0.6

六、按要求改写句子。
1. She bought a new dress.（改为否定句）




2. They went to see their grandparents.（改为一般疑问句）




3. He finished his homework.（用when提问）




4. We didn't walk to the park.（改为肯定句）




5. I ate an apple this morning.（用what提问）

1. She didn't buy a new dress.
2. Did they go to see their grandparents?
3. When did he finish his homework?
4. We walked to the park.
5. What did you/I eat this morning?

【分析】
这五道题围绕一般过去时的句式转换展开，解题核心是掌握无be动词的一般过去时的句式变化规则：1. 改否定句：借助助动词did的否定形式didn't，后接实义动词原形；2. 改一般疑问句：将助动词did提至句首，主语后接实义动词原形；3. 用when提问：构成when引导的特殊疑问句，结构为“When + did + 主语 + 实义动词原形 + 其他？”；4. 否定改肯定：去掉didn't，实义动词变回过去式；5. 用what提问：构成what引导的特殊疑问句，结构为“What + did + 主语 + 实义动词原形 + 其他？”，注意人称的灵活调整。
【解析】
1. 原句是一般过去时，动词bought为buy的过去式，改否定句需加didn't，bought变回原形buy，故为She didn't buy a new dress.；
2. 改一般疑问句时，将助动词Did提至句首，went变回原形go，故为Did they go to see their grandparents?；
3. 用when提问时，遵循特殊疑问句结构，finished变回原形finish，故为When did he finish his homework?；
4. 否定句改肯定句，去掉didn't，walk变回过去式walked，故为We walked to the park.；
5. 用what提问时，ate变回原形eat，人称I可灵活调整为you或保留，故为What did you/I eat this morning?
【答案】
1. She didn't buy a new dress.
2. Did they go to see their grandparents?
3. When did he finish his homework?
4. We walked to the park.
5. What did you/I eat this morning?
【知识点】
一般过去时句式转换、特殊疑问句构成
【点评】
本题考查一般过去时的基础句式转换，是英语时态学习的核心基础题型，需熟练掌握助动词did的用法，难度适中。
【难度系数】
0.5