Ⅳ. 连词成句。
1. a big nature waterfall in the There is park (.)

2. do usually do you at the What weekend (?)

3. people How can healthy stay (?)

4. famous Are mountains there the park any in (?)

1. There is a big waterfall in the nature park.
2. What do you usually do at the weekend?
3. How can people stay healthy?
4. Are there any famous mountains in the park?

【分析】
连词成句需先根据标点判断句型（陈述句/疑问句），再梳理对应句型的结构：1. 句号对应There be陈述句，遵循“There be + 名词短语 + 地点状语”结构；2. 带What的问号对应特殊疑问句，结构为“What + 助动词 + 主语 + 谓语 + 时间状语”；3. 带How的问号对应特殊疑问句，结构为“How + 情态动词 + 主语 + 谓语”；4. 带Are there的问号对应There be一般疑问句，结构为“Be there + any + 名词短语 + 地点状语”，再调整语序确保通顺合理。
【解析】
1. 句号提示为There be陈述句，There is后接名词短语a big waterfall，地点状语in the nature park，组合得：There is a big waterfall in the nature park.
2. 问号且有What，为特殊疑问句，What后接助动词do，主语you，副词usually放谓语前，谓语do，时间状语at the weekend，组合得：What do you usually do at the weekend?
3. 问号且有How，为特殊疑问句，How后接情态动词can，主语people，谓语stay healthy，组合得：How can people stay healthy?
4. 问号且有Are there，为There be一般疑问句，Are there后接any famous mountains，地点状语in the park，组合得：Are there any famous mountains in the park?
【答案】
1. There is a big waterfall in the nature park.
2. What do you usually do at the weekend?
3. How can people stay healthy?
4. Are there any famous mountains in the park?
【知识点】
连词成句；There be句型；特殊疑问句
【点评】
本题为英语基础连词成句题，考察学生对常见句型的掌握，需注意句型结构和语序，是英语学习的核心基础题型。
【难度系数】
0.7

Ⅴ. 根据图片填写正确的单词，补全句子。
1. This is celery. We eat its and leaves.
2. You should eat less .
3. He has maths class on .
4. He can't find his pet dog. He is .

1. stems
2. ice cream
3. Friday
4. sad

【分析】首先结合每个句子的语境与对应图片的提示，明确需填写的单词类型：1. 芹菜的食用部位相关名词；2. less修饰的不可数名词短语；3. 表示星期的名词；4. 描述情绪的形容词，再匹配对应词汇。
【解析】1. celery（芹菜）的食用部分是茎和叶，“茎”的复数形式为stems，符合语境；2. less后接不可数名词，结合图片提示填ice cream；3. 表示星期的名词Friday，对应“上数学课”的时间场景；4. 找不到宠物狗的情绪是难过的，用形容词sad。
【答案】1. stems
2. ice cream
3. Friday
4. sad
【知识点】名词的用法、形容词的用法、星期表达
【点评】本题结合图片与句子语境考查基础词汇运用，贴近日常，难度适中，可检验学生对常用词汇的掌握程度。
【难度系数】0.7