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The human body is a living machine, and, like all machines, it needs “fuel” to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy?
The energy value of food is usually measured in calories(卡). A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃. The number of calories people need per day is different, as the picture shows. Also, the number of calories you use at any one moment normally depends on the activity you are in. For example, you need more calories for standing than for sitting, more for running than for walking, and so on.
The energy in food is in the form of three kinds of chemical materials—carbohydrate（碳水化合物）, protein（蛋白質(zhì)） and fat. Carbohydrate provides 3.8 Cal /gm of the energy, protein 4.0 Cal/gm, and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the round pictures show.
(P= protein      C= carbohydrate    F=fat)
【小題1】How many calories are needed to raise the temperature of 5kg of water from 35℃ to 90℃?

The human body is a living machine, and, like all machines, it needs “fuel” to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy?

The energy value of food is usually measured in calories(卡). A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃. The number of calories people need per day is different, as the picture shows. Also, the number of calories you use at any one moment normally depends on the activity you are in. For example, you need more calories for standing than for sitting, more for running than for walking, and so on.

The energy in food is in the form of three kinds of chemical materials—carbohydrate（碳水化合物）, protein（蛋白質(zhì)） and fat. Carbohydrate provides 3.8 Cal /gm of the energy, protein 4.0 Cal/gm, and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the round pictures show.

(P= protein      C= carbohydrate    F=fat)

1.How many calories are needed to raise the temperature of 5kg of water from 35℃ to 90℃?

2.Which of the following contains the most amount of calories?

3.Who needs the most amount of calories each day?

4.Which of following is True?　　

5.This passage mainly tells us ______.

從方框中選出適當(dāng)?shù)木渥友a(bǔ)全對話，有兩項多余。（5分）

A.What’s up?

B.Are you free tomorrow morning?

C.Oh,how much do we need?

D.May I speak to Jane?

E.Here we are.

F.What about you,Tom?

G.Would you like to go with us?

Jane:Hello!

Tom:Hello! 1.___________

Jane:This is Jane.

Tom: 2._________________

Jane:Yes.

Tom:We want to go to the zoo. 3.__________

Jane:Yes,I’d love to.I want to see pandas there.Pandas are my favorite animals. 4.______________

Tom:Elepants.They are very big and strong.Oh,don’t forget(忘記)to bring some water.

Jane:All right. 5.____________

Tom:We need four bottles of water.

Jane:OK.See you tomorrow.

Tom:See you.

根據(jù)下面對話中的情景，在每個空中填入適當(dāng)?shù)恼Z句，使對話恢復(fù)完整。

A：Hello, this is Youth Travel Agency.   1                ?

B：I’d like some information on vacation.

A：  2                ?

B：My old parents will go with us together. So I prefer the place that is quiet.

A：  3               ?

B：  4                . Qingdao is my parents’ favorite place. How much do we need to spend?

A：Each one about 1,000 yuan.

B： 5               . I’ll give you my reply as soon as possible.

A：You’re welcome. Thank you for your calling.