问题 阅读理解

A smart diet, a healthy life

No matter how old your kids are, you can take steps to improve a healthy diet and to encourage good eating habits.

Tip One: Family Meals

Family meals are nice for both parents and kids. Children like to guess what they are going to have and parents get the chance to introduce new foods to children. Parents can also use the mealtime as a chance to talk with their kids about their life.

Tip Two: Healthy Snacks(零食)

Kids, especially younger ones, will eat mostly what can get at home. That’s why it’s important to have enough healthy snacks, such as fruits, vegetables, nuts, yogurt and whole-grain biscuits.

Tip Three: Being a Good Example

The best way for you to encourage healthy eating is to eat well yourself. Kids will follow the

lead of the adults they see every day. By eating fruits and vegetables and avoiding fast food and sweet drinks, you are sending the right message.

Tip Four: No Shouts about Food

Parents might find themselves shouting at children to get them to have healthy foods in front of them. This in fact can make children dislike what they are asked to eat. You need to work a bit on different cooking methods(方式,方法).

Tip Five: Get Kids Included(参与)

Most kids will enjoy making the decision about food. Talk to them about making choices and planning a healthy meal. It can help them to make good decisions on their own about the foods they want to eat.

小题1:What is the author’s attitude(态度) toward snacks?

A.Snacks shouldn’t be eaten.

B.Healthy snacks can be accepted.

C.Kids can only have snacks at home.

D.It’s not necessary to have snacks at home.小题2:The best way for parents to encourage a healthy diet is ________.

A.to have family meals

B.to eat healthy snacks

C.to be a good example

D.to get kids included小题3:What does the underlined phrase “ the right message” mean?

A.Being a good cook.

B.Healthy eating

C.Eating fast food.

D.Cooking at home.小题4:According to Tip Four, what should parents do if kids refuse to eat healthy food?

A.Explain how healthy it is.

B.Try cooking it in a different way

C.Never cook the same food.

D.Ask kids to get used to its taste.小题5:Why should parents get kids included when they make the decision about food?

A.To let kids eat anything they like.

B.To help kids become a wonderful cook.

C.To help kids make good choices by themselves.

D.To set a good example of eating healthy food.

答案

小题1:B

小题2:C

小题3:B

小题4:B

小题5:C

小题1:由Tip Two: Healthy Snacks(零食)可知健康的零食是可以的。

小题2:文中The best way for you to encourage healthy eating is to eat well yourself.可知应该选C.

小题3:文中By eating fruits and vegetables and avoiding fast food and sweet drinks, you are sending the right message.可知道健康地吃。选B。

小题4:文中You need to work a bit on different cooking methods(方式,方法).可知改变做饭的方式。

小题5:文中 It can help them to make good decisions on their own about the foods they want to eat.可知帮助孩子们自己做选择。

实验题

(18分)

⑴(6分)某实验小组在利用单摆测定当地重力加速度的试验中:

①用游标卡尺测定摆球的直径,测量结果如图所示,则该摆球的直径为  cm。

②小组成员在试验过程中有如下说法,其中正确的是   。(填选项前的字母)

A.把单摆从平衡位置拉开30º的摆角,并在释放摆球的同时开始计时

B.测量摆球通过最低点100次的时间t,则单摆周期为t/100

C.用悬线的长度加摆球的直径作为摆长,代入单摆周期公式计算得到的重力加速度值偏大

D.选择密度较小的摆球,测得的重力加速度值误差较小

⑵(12分)某同学在探究规格为“6V,3W”的小电珠伏安特性曲线实验中:

①在小电珠接入电路前,使用多用电表直接测量小电珠的电阻,则应将选择开关旋至____档进行测量。(填选项前的字母)

A.直流电压10V             B.直流电流5mA

C.欧姆× 100                D.欧姆× 1

②该同学采用图甲所示的电路进行测量。图中R为滑动变阻器(阻值范围0~20Ω,额定电流1.0A),L为待测小电珠,V为电压表(量程6V,内阻20kΩ),A为电流表(量程0.6A,内阻1Ω),E为电源(电动势8V,内阻不计),S为开关。

Ⅰ.在实验过程中,开关S闭合前,滑动变阻器的滑片P应置于最____端;(填“左”或“右”)

Ⅱ.在实验过程中,已知各元器件均无故障,但闭和开关S后,无论如何调节滑片P,电压表和电流表的示数总是调不到零,其原因是_____点至_____点的导线没有连接好;(图甲中的黑色小圆点表示接线点,并用数字标记,空格中请填写图甲中的数字,如“2点至3点”的导线)

Ⅲ.该同学描绘出小电珠的伏安特性曲线示意图如图乙所示,则小电珠的电阻值随工作电压的增大而______。(填“不变”、“增大”或“减小”)

单项选择题 A3/A4型题