取一个平底烧瓶，配一个带有玻璃管的单孔橡皮塞，在玻璃管插入烧瓶的一端扎上一个“洋

如图所示一群风华少女通过精美的舞蹈把我国佛文化中的“千手观音”演绎得淋漓尽致，给人以美的熏陶、善的启迪。

（1）如图所示，观众看不见领舞者身后其他演员的面孔，这是因为光的____________的缘故。

（2）佛光普照，梵音如丝.我们能分辨出不同乐器发出的声音，原因是不同的乐器发声的_________不同。（选填“音调”、“音色”或“响度）

5岁患儿，胸骨左缘第2肋间触及连续性震颤。该患儿可能的诊断是（）

A.室间隔缺损

B.房间隔缺损

C.肺动脉瓣狭窄

D.动脉导管未闭

E.肺动脉瓣关闭不全

The meal you eat after exercising matters! No matter what time of day you exercise, the key is to follow the exercise up with meals that supply enough nutrition. For the best results, eat within thirty to sixty minutes after exercising, when the muscles are at the best time to take in nutrients.

Here are some ideas for meals after exercising:

Home-made sports—recovery drink

Mix banana, milk, and yogurt to make a fresh and satisfying sports—recovery drink. Dairy products like milk and yogurt work double duty, providing both protein and carbohydrates. A cup of coffee, on the other hand, is a poor choice.

Protein—packed sandwich

You can’t go wrong with a sandwich after exercising—it’s got everything in a hand—held package. Sandwiches provide the salt you need to replace what you have lost by sweating, while the tomatoes in them supply plenty of Vitamin C. Try using whole—wheat bread to give yourself more fiber. The cheese and fresh vegetables in sandwiches are also great for helping tired muscles recover.

Power breakfast

An egg sandwich is a perfect post—exercise breakfast. There’s protein in both the yolk(蛋黄) and the white of the egg. This recipe increases your protein intake while keeping calories and fat under control. Eggs also contain zinc(锌), which helps protect against disease.

Plant—based protein

Beans are an amazing source of plant—based protein and carbohydrates. Make a large bowl of bean salad in the beginning of a week, and you’ll have a great post—exercise meal that is ready whenever you need it.

53.Why does the author advise eating a protein—packed sandwich after exercising?

A.It helps increase the protein in your body.           B.It has plenty of fat and calories.

C.The things in it help you recover.                       D.It is an amazing source of carbohydrates.

54.What should you do when your muscles feel tired?

A.Eat cheese and fresh vegetables.                        

B.Drink as much milk and yogurt as possible.

C.Eat whole—wheat bread instead of a sandwich.  

D.Eat and drink as soon as possible.

55.Which of the following is NOT true according to the passage?

A.It’s the best time for muscles to take in nutrients within 30 to 60 minutes after exercising.

B.It’s best for you to have an egg sandwich after exercising.

C.A cup of coffee will help you recover after exercising.

D.Bean salad is another great meal for post—exercising.

56.What is the passage mainly about?

A.The healthy eating habits of athletes.                  B.The best time for exercising.

C.How to warm up before exercising.                    D.What to eat after exercising.

以下不属于马斯洛的需要层次理论的需要是（）

A．心理需要

B．安全需要

C．归属和爱的需要

D．尊重需要

低热量食物是指含淀粉、糖类等碳水化合物类较少的食物。通过食用低热量食品，可以有效控制能量的摄入量，避免多余能量在体内以脂肪形式储存下来。如果体重已经较重的人改为食用低热量食品，则可以保持饱腹感的同时达到减肥效果。另外，有许多人认为，低热量食物对糖尿病患者也十分有益。以下哪项为真，最能支持上述推论

A．改食用低热量食物需要逐步进行，否则会引起机体代谢紊乱

B．低热量食品可以降低超重或糖尿病患者的体重，但需要补充其他营养

C．低热量食品可适当增加进食量，满足饱腹感，享受吃饱的乐趣

D．研究表明低热量饮食可减少脂肪在胰脏中的沉积，恢复胰岛素的分泌