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B 跨学科+物理
Slides (滑梯) are simple but always fun. All you need to do is climb up to the top and slide down. But do you know that there is science behind this simple playground equipment?
Isaac Newton said what goes up must come down. He was talking about gravity. Gravity is an invisible (看不见的) force that pulls everything down. Slides work because of gravity, ① that is not all.
You climb up the slide ② sit down. You are ready to go. Are you sliding down? No, not yet. Things stay still unless (除非) something makes them move. It is Newton’s First Law of Motion. ③ you have to give yourself a push to start the journey down.
Now you are sliding down. Do you feel you are slowing down a bit? When two things rub (摩擦) against each other, they cause friction. It is the force that works against the movement. Without friction, you will slide down faster and faster to the bottom of the slide. It is dangerous, ④ that might be more fun.
At the bottom of the slide, you come to a full stop. Your feet touch the ground and add extra friction. Newton’s First Law of Motion also says moving things keep moving unless something makes them stop. So if you do not use your feet, you will fly out of the slide and hurt yourself.
（
A. What fun a slide is!
B. How does science make a slide work?
C. How dangerous to slide down with a toy!
D. How fast can you slide down a slide?
（
A. jumping down from a high place
B. walking on the ground
C. flying in the sky
D. throwing a basketball into a basket
（
A. ① but ② and ③ Although ④ so
B. ① and ② but ③ Although ④ so
C. ① but ② and ③ So ④ although
D. ① and ② but ③ So ④ although
Slides (滑梯) are simple but always fun. All you need to do is climb up to the top and slide down. But do you know that there is science behind this simple playground equipment?
Isaac Newton said what goes up must come down. He was talking about gravity. Gravity is an invisible (看不见的) force that pulls everything down. Slides work because of gravity, ① that is not all.
You climb up the slide ② sit down. You are ready to go. Are you sliding down? No, not yet. Things stay still unless (除非) something makes them move. It is Newton’s First Law of Motion. ③ you have to give yourself a push to start the journey down.
Now you are sliding down. Do you feel you are slowing down a bit? When two things rub (摩擦) against each other, they cause friction. It is the force that works against the movement. Without friction, you will slide down faster and faster to the bottom of the slide. It is dangerous, ④ that might be more fun.
At the bottom of the slide, you come to a full stop. Your feet touch the ground and add extra friction. Newton’s First Law of Motion also says moving things keep moving unless something makes them stop. So if you do not use your feet, you will fly out of the slide and hurt yourself.
（
B
）4. Which of the following can be put into NO. 1?A. What fun a slide is!
B. How does science make a slide work?
C. How dangerous to slide down with a toy!
D. How fast can you slide down a slide?
（
B
）5. Which of the following can be put into NO. 2?A. jumping down from a high place
B. walking on the ground
C. flying in the sky
D. throwing a basketball into a basket
（
C
）6. Which of the following is the right order of the missing linking words?A. ① but ② and ③ Although ④ so
B. ① and ② but ③ Although ④ so
C. ① but ② and ③ So ④ although
D. ① and ② but ③ So ④ although
答案
B) 答案速查 4.B 5.B 6.C
【主旨大意】本文主要介绍了滑梯工作的科学原理。
4 B【点拨】主旨大意题。根据“But do you know that there is science behind this simple playground equipment?”及表格的内容可知，本文是介绍滑梯工作的科学原理。故选 B。
5 B【点拨】推理判断题。根据“When two things rub against each other, they cause friction.”可知，当两种东西相互摩擦时，它们会产生摩擦力。B 选项“在地面上行走”可以产生摩擦。故选 B。
6 C【点拨】细节理解题。根据“Slides work because of gravity, ... that is not all.”可知，滑梯因为重力而工作，但那不是全部，前后是转折关系，用 but；根据“You climb up the slide ... sit down.” 可知，climb up the slide 与 sit down 两者是并列关系，用 and；根据“Things stay still... It is Newton’s ... you have to give yourself a push to start the journey down.”可知，这是牛顿的第一定律，东西会静而不动，所以你必须给自己一个推力，才能开始这段旅程。后句是前句的结果，用 So 连接；根据“It is dangerous, ... that might be more fun.”可知，这很危险，尽管那可能更有趣，前后是让步关系，用 although 引导让步状语从句。因此正确的顺序是① but ② and ③ So ④ although。故选 C。
【主旨大意】本文主要介绍了滑梯工作的科学原理。
4 B【点拨】主旨大意题。根据“But do you know that there is science behind this simple playground equipment?”及表格的内容可知，本文是介绍滑梯工作的科学原理。故选 B。
5 B【点拨】推理判断题。根据“When two things rub against each other, they cause friction.”可知，当两种东西相互摩擦时，它们会产生摩擦力。B 选项“在地面上行走”可以产生摩擦。故选 B。
6 C【点拨】细节理解题。根据“Slides work because of gravity, ... that is not all.”可知，滑梯因为重力而工作，但那不是全部，前后是转折关系，用 but；根据“You climb up the slide ... sit down.” 可知，climb up the slide 与 sit down 两者是并列关系，用 and；根据“Things stay still... It is Newton’s ... you have to give yourself a push to start the journey down.”可知，这是牛顿的第一定律，东西会静而不动，所以你必须给自己一个推力，才能开始这段旅程。后句是前句的结果，用 So 连接；根据“It is dangerous, ... that might be more fun.”可知，这很危险，尽管那可能更有趣，前后是让步关系，用 although 引导让步状语从句。因此正确的顺序是① but ② and ③ So ④ although。故选 C。
解析
【分析】
本题为跨学科（英语+物理）的阅读理解题，需结合文章内容和物理知识解题。第4题考查主旨大意，需梳理文章核心围绕滑梯的科学原理展开；第5题考查推理判断，需结合摩擦力的定义匹配例子；第6题考查连词辨析，需分析每个空缺处的逻辑关系（转折、并列、因果、让步）。
【解析】
第4题
文章开头点明“滑梯背后有科学”，表格内容分别介绍重力和摩擦力对滑梯的作用，核心是讲解滑梯工作的科学原理。A选项强调滑梯有趣，偏离主旨；C选项提到玩具滑梯的危险，无依据；D选项问滑梯速度，未涉及。故选B。
第5题
摩擦力是“两个物体相互摩擦产生”的力。A选项“从高处跳下”是重力作用；B选项“在地面行走”是脚与地面摩擦，符合摩擦力的例子；C选项“飞行”无摩擦；D选项“投篮”是重力作用。故选B。
第6题
分析空缺处逻辑：①前句“滑梯靠重力工作”和后句“不止如此”是转折关系，用but；②“爬滑梯”和“坐下”是并列动作，用and；③前句“物体静止需受力”和后句“需推一下才下滑”是因果关系，用So；④前句“危险”和后句“更有趣”是让步关系，用although。对应选项C。
【答案】
4.B 5.B 6.C
【知识点】
主旨大意题、推理判断题、连词辨析、重力与摩擦力
【点评】
本题结合英语阅读与物理知识，考查学生的阅读理解能力和对物理概念的理解，需准确梳理文章逻辑、结合物理常识解题，是跨学科的典型题型。
【难度系数】
0.5
本题为跨学科（英语+物理）的阅读理解题，需结合文章内容和物理知识解题。第4题考查主旨大意，需梳理文章核心围绕滑梯的科学原理展开；第5题考查推理判断，需结合摩擦力的定义匹配例子；第6题考查连词辨析，需分析每个空缺处的逻辑关系（转折、并列、因果、让步）。
【解析】
第4题
文章开头点明“滑梯背后有科学”，表格内容分别介绍重力和摩擦力对滑梯的作用，核心是讲解滑梯工作的科学原理。A选项强调滑梯有趣，偏离主旨；C选项提到玩具滑梯的危险，无依据；D选项问滑梯速度，未涉及。故选B。
第5题
摩擦力是“两个物体相互摩擦产生”的力。A选项“从高处跳下”是重力作用；B选项“在地面行走”是脚与地面摩擦，符合摩擦力的例子；C选项“飞行”无摩擦；D选项“投篮”是重力作用。故选B。
第6题
分析空缺处逻辑：①前句“滑梯靠重力工作”和后句“不止如此”是转折关系，用but；②“爬滑梯”和“坐下”是并列动作，用and；③前句“物体静止需受力”和后句“需推一下才下滑”是因果关系，用So；④前句“危险”和后句“更有趣”是让步关系，用although。对应选项C。
【答案】
4.B 5.B 6.C
【知识点】
主旨大意题、推理判断题、连词辨析、重力与摩擦力
【点评】
本题结合英语阅读与物理知识，考查学生的阅读理解能力和对物理概念的理解，需准确梳理文章逻辑、结合物理常识解题，是跨学科的典型题型。
【难度系数】
0.5
