1. —Look! Someone left a book here.
—Oh. This book be Kitty's. Only she likes to read this kind of books.

A.can
B.must
C.might

1. B

【分析】本题考查情态动词表推测的用法。首先提取语境关键信息：“Only she likes to read this kind of books（只有她喜欢读这种书）”，这说明此处是有把握的肯定推测；再回忆三个选项情态动词的推测用法：can多用于否定句或疑问句表“不可能”，must用于肯定句表有把握的“一定”，might表可能性较小的“可能”，据此可判断答案。
【解析】根据语境“Only she likes to read this kind of books”可知，此处是对书的归属有把握的肯定推测。A选项can多用于否定句或疑问句的推测，不符合此处肯定推测的语境；B选项must用于肯定句中表示有把握的推测，意为“一定”，符合语境；C选项might表示可能性较小的推测，不符合“只有她喜欢”的确定语境。因此选B。
【答案】B
【知识点】情态动词表推测
【点评】本题结合具体语境考查情态动词表推测的核心用法，需准确区分不同情态动词表推测时的语气差异，属于基础考点，难度不大。
【难度系数】0.3

2. —Look! Is that girl Alice?
—No, it be her. She is on a tour in Beijing now.

A.can't
B.mightn't
C.mustn't

2. A

【分析】本题考查情态动词表推测的用法。首先根据答句后半句“She is on a tour in Beijing now.”可知，要表达“那个女孩不可能是Alice”的否定推测含义，需结合各情态动词的用法分析选项。
【解析】根据语境，Alice正在北京旅游，因此需选表否定推测的情态动词。选项A can't用于否定推测，意为“不可能”，符合语境；选项B mightn't意为“可能不”，语气不确定，不符合此处确定的否定推测；选项C mustn't意为“禁止”，不用于表示推测，不符合语境。因此正确答案为A。
【答案】A
【知识点】情态动词表推测
【点评】本题考查英语基础考点——情态动词的推测用法，需准确区分不同情态动词在推测中的含义，难度较低。
【难度系数】0.7

3. —Will your mother be at home this Saturday?
—Hard to say. She go to the countryside to see my grandparents.

A.must
B.may
C.can

3. B

【分析】
先理解对话语境：问句询问妈妈周六是否在家，答句“Hard to say”（很难说）体现出不确定的态度，需选择表示“可能”的情态动词。再回忆三个选项的用法差异：must表肯定推测“一定”，语气绝对；may表不确定的推测“可能”；can多用于否定/疑问句表推测，或表能力，不适合此处肯定句的不确定推测。结合语境即可选出正确选项。
【解析】
根据对话中“Hard to say”体现的不确定语境，需选表不确定推测的情态动词。A选项must表肯定推测，不符合语境；C选项can不用于肯定句表不确定推测；B选项may表不确定的“可能”，契合语境，故选B。
【答案】
B
【知识点】
情态动词表推测
【点评】
本题考查情态动词表推测的用法，需结合对话语境判断推测语气，属于基础语法题，难度适中。
【难度系数】
0.6

School is over. Tom and I find a schoolbag outside our classroom. We don't know

School is over. Tom and I find a schoolbag outside our classroom. We don't know whose schoolbag it is. There is a photo of a star, a pink hair band, a ping-pong bat in the schoolbag. So it can't be a boy's. In our class, only Li Shan and Liu Fang like playing ping-pong and often play it together. Tom thinks it could be Liu Fang's because she likes pink. I disagree. Although Liu Fang likes pink, she has short hair, so she doesn't need a band. I think it must belong to Li Shan because she has long hair. What's more, she likes the star very much.

【分析】首先，根据语境，捡到书包后需先说明不知道书包的归属，因此第一处应填写陈述语序的宾语从句表达“不知道是谁的书包”；接着需结合书包内的物品，结合班级同学的爱好、外貌、喜好等特征进行逻辑推理，判断书包的归属。
【解析】1. 第一空：由前文“find a schoolbag”可知，此处需表达“不知道是谁的书包”，故填陈述语序的宾语从句“whose schoolbag it is”；2. 补充书包内的物品：a photo of a star, a pink hair band, a ping-pong bat；3. 推理归属：乒乓球拍说明是女生的，排除男生的可能；班级里只有李珊和刘芳打乒乓球，刘芳是短发不需要发带，因此排除刘芳；李珊是长发，喜欢明星，符合书包内的物品特征，故确定书包属于李珊。
【答案】School is over. Tom and I find a schoolbag outside our classroom. We don't know whose schoolbag it is. There is a photo of a star, a pink hair band, a ping-pong bat in the schoolbag. So it can't be a boy's. In our class, only Li Shan and Liu Fang like playing ping-pong and often play it together. Tom thinks it could be Liu Fang's because she likes pink. I disagree. Although Liu Fang likes pink, she has short hair, so she doesn't need a band. I think it must belong to Li Shan because she has long hair. What's more, she likes the star very much.
【知识点】宾语从句、逻辑推理、名词所有格
【点评】本题以校园生活场景为载体，考查学生的语境理解、语法运用及逻辑推理能力，需要结合物品特征和人物特点逐步推导，贴近生活实际。
【难度系数】0.5