图1所示传送带上有一个物体M.质量为2kg ,它与传送带一起以lm/s的速度在水平方向向右匀速运动.不计空气阻力．请在图1中画出M受力的示意图．题目和参考答案——青夏教育精英家教网——

题目内容

图1所示传送带上有一个物体M，质量为2kg ,它与传送带一起以lm/s的速度在水平方向向右匀速运动，不计空气阻力．请在图1中画出M受力的示意图．

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阅读下面短文，用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。(请将各小题答案写在短文后相应的横线上)

Do you still remember Old Henry? Last Sunday, he 【小题1】 (go) for a walk with Wang Wang, his cute dog. It was a nice day. Old Henry sat down and watched Wang Wang 【小题2】 (play) with a friendly black cat. Then it was time to go home. Old Henry looked for his dog. But Wang Wang 【小题3】 (be) not there! Now Old Henry is very sad. He 【小题4】(miss) his dog and doesn’t want to do anything.

阅读下面短文，按要求完成各项任务。.
Breaking Bad Eating -Habits
Have you heard the expression "You are what you eat"? Well, do you like who you are'' If not, break some bad eating habits and feel better about yourself.
Bad habit 1: ______________
Many packaged ( =" in" small bags) foods, such as frozen （纤维) dumplings ,rice rolls and instant noodles (方便面) have lots of fat and calories (热量).
The solution: Read the instructions to find the healthiest foods that are low in salt and nigh in fiber Also check to make sure they have ingredients such as vegetables and grains When possible, use packaged foods as part of a "home-cooked" meal. For example frozen （纤维) dumplings with fresh vegetables are better than dumplings alone.
Bad habit 2:_____________________________________________
People without breakfast don't have enough energy they need to get through the morning. Eating breakfast improves your concentration, memory (冰冻的） and mood.
The solution: Always keep a kind of quick foods like yogurt. Or have a standing order a! breakfast place.
Bad habit 3:_________________________________________________
It takes your body at least 20 minutes to "tell" your brain that you are full, So last eaters usually eat more than people who eat slowly.
The solution: Try to slow down. Try eating at least some of your meals without I V, hand phones or computers. Use a plate or bowl when you eat.
Bad habit 4:______________________ ______________
Healthy snacks between meals are fine. But when you snack instead of having real meals, you will not eat your meals regularly. Plus, snack foods such as chips and sweets aren't very satisfying That makes it easy to overeat.
The solution: To get more energy, allow yourself two healthy snacks a day. Choose snacks that will make you feel full. Try fruit, yogurt or nuts.
As we all know, bad habits can be broken. Take the first step toward a healthier eating routine（常规）——star following these tips today!
【小题1】给文中的横线处选择合适的标题,并将其字母代号填写在下面的横线上.(2分)
a. You are a fast eater.
b. You often don't eat breakfast.
c. All your meals come in packages.
d. You snack too much.
Bad habit 1:_____ Bad habit 2:_____ Bad habit 3:_____ Bad habit 4:_______
Bad habit 1:_c_ Bad habit 2:_b Bad habit 3:_a___Bad habit 4:d_______
【小题2】列举出文中提到的三种packaged foods: (1 分)
_______________ ____________________ ___________________
【小题3】根据上下文，将文中划线句子译成汉语（2分）
It takes your baby at least 20 minutes to “tell” your brain that you are full.

【小题4】根据文章内容完成句子。（2分）
No eating breakfast is bad influence on your_________________, __________________,______________________ and __________________________
【小题5】回答问题；How can you eat snacks healthily? (至少答出两种方式) （2分）
______________________________________________________________________________________________________________________________________________________________
【小题6】从文中找出与所给句子意思相同或相近的句子。（1分）
Your heaith depends on the food you eat.
_______________________________________________________________________________

— Could you please pass me the book?

A．Yes, I could	B．No, I couldn't
C．Sure. Here you are	D．No, that's no problem

（13分）下图是元素周期表的一部分，其中所列字母分别代表某一元素

a

b

j

c

d

e

f

g

h

i

k

（1）写出元素k基态原子的核外电子排布式________________________。
（2）e、f单质及ef形成的合金的硬度由大到小的顺序为_______________________（用具体名称回答）
（3）用来组成酸、碱、盐三类物质至少需要的元素有___________________（用表中列出元素的化学式填写）
（4）短周期某主族元素M的电离能情况如图（A）所示。则M元素位于周期表的第族。

图B是研究部分元素的氢化物的沸点变化规律的图像，折线c可以表达出第族元素氢化物的沸点的变化规律。不同同学对某主族元素氢化物的沸点的变化趋势画出了两条折线：折线a和折线b，你认为正确的是。

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【小题9】　A.　stupid　　　　B.　simple　relaxing　　　　D.　difficult

A．picked　up

C．cut　up　　　

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