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1、衡中同卷·2022-2023学年度高考分科综合测试卷 全国甲卷B 理科数学(一)1试题

2、2023衡水金卷先享题分科综合卷理综(一)

3、2023衡水金卷语文分科综合卷 新教材答案

【解析】由质量数和电荷数守恒得，该实验的核反应方程为He十i4N一→8X十1H,则新核X的中子数为17一8=9，A项正确；原子核a为氦核，质子数为2、质量数为4，则原子核a的中子数等于质子数，B项错误；由于氮核的中子数为14一7=7，新核X的中子数为9，故氮核的中子数比新核X的中子数少2，C、D项错误。

We’ve been covering standing desks for a long time now because experts agree that sitting all day is killing us．We want to be productive while also keeping our bodies healthy．Over the years，there have been several solutions to this from fixed standing desks to adjustable ones，portable desks to ones that change into shelves．

However, the most high tech and elegant solution has to be this new smart desk called The Stir Kinetic Desk．The desk learns your daily behaviors and moves between a sitting and standing height regularly throughout the day to keep you moving without interrupting your work flow．

You can program specific sitting and standing intervals or let the desk set the schedule．If you tend to sit while returning emails in the morning，but always want to stand during that afternoon conference call，the desk will learn those regular habits and adjust the schedule to fit them. Of course，the desk can always be manually lowered or raised by using the touch screen on the lower left comer of the desk．

When switching positions，the desk gently dips and rises to let you know that a change is coming up．If you’re not ready to switch positions at that time，you can tap the touchscreen to stay sitting or standing for a while longer．

The built．in touchscreen also keeps track of your daily sitting and standing times and tells you how many calories you’ve burned．You can even set goals for how long or often you want to stand．The desk also works with fitness devices like the FitBit to track your movements．

All of that smart tech doesn’t come cheap though．The M1 desk，which is the everyday model，runs a steep $2，990，while the more executive model with added features，the F1，goes for$4，190．

While expensive，it’s worth thinking of how much time we spend at our desks．Much like a good mattress(床垫)，a good desk that works with you is worth the investment．Hopefully in a few years these smart，integrated desks will be more common and less expensive．

1.The Stir Kinetic Desk has been designed to_______．

A．help users with their work

B．keep users moving all the time

C．get users to exercise while working

D．remind users of their working schedule

2.Which is the feature of the touchscreen of the desk?

A．It can tell users when to change positions．

B．It can track users’changes of positions．

C．It can keep users in a fixed position．

D．It can detect users’health condition．

3.Which of the following can best describe the desk?

A．Productive but challenging．

B．Convenient but unaffordable．

C．Complex and impractical．

D．Multi-functional and intelligent．

4.What does the author intend to tell us in the last paragraph?

A．To spend money on such a desk is rewarding．

B．We should get such a desk as soon as possible．

C．It won’t be long before the desk is widely used．

D．Desks play a very important role in our daily life．

试题答案

1.C

2.B

3.D

4.A

【解析】

试题分析：文章主要介绍了一种可以自动调节的桌子，能让人在工作的时候保持运动的状态，尽管这种桌子很贵，但是它的价值是值得人们考虑的。

1.细节理解题。根据文章二段可知，这种桌子可以在不打断人们工作的情况下使人们保持运动。故选C。

2.细节理解题。根据文章倒数第三段第一句The built．in touchscreen also keeps track of your daily sitting and standing times and tells you how many calories you’ve burned．可知这种桌子可以记录人坐着和站着的次数，检测人的位置变化。故选B。

3.细节理解题。根据文章最后一句these smart，integrated desks的描述可知，这种桌子功能非常多，而且是智能的，故选D。

4.推理判断题。最后一段告诉我们，这种桌子虽然有点贵，但是考虑到它的功能，它是值得人们买的。故选A。

考点：考查科普类短文阅读

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