按所给的汉语，用适当的词或短语完成下列句子。（本大题共5分）

1.My classmate XiaoMing is very kind  and never                   (说坏话)about others.

2.Our English teacher came into the classroom                    (带着微笑)on her face.

3.f you want to join us,please let us know                       (尽可能快地)。

4.He has some problems              (算出，解决)  the maths problem.Can you help him?

5.I will put my photos on my homepage for everyone to             (看一看)。 

It keeps your insides from falling out. It helps you warm up when you are cold, and it can cool you off when you are hot. It lets you feel things by touch.
What is this? Your skin（皮肤）, of course! What does you skin ask for return for all the wonderful things it does? Just a little care!  So let’s learn how to take care of our skin.
Like the heart and stomach, your skin is an organ （器官）．In fact, it is the largest organ in your body．Unless there’s a problem, you may not think about your skin very much．But skin has an important job to do．
Your skin is protecting you．Your skin keeps you from getting sick．When you take care of your skin, you are helping your skin do its job．Taking care of your skin today will help you have no problems in the future．
Clean skin is happy skin! One simple way to take care of your skin is to keep it clean．Keeping your hands clean is very important．When washing your hands, use warm water．Wet your hands, and then use soap．You should wash your hands carefully everywhere．
You’ll also want to use warm water, but not too hot, when you take a bath．Use soap to clean your body．Don’t forget under your arms and behind your ears! Your face needs attention, too．It’s a good idea to wash your face once or twice a day with warm water．
【小题1】We can infer（ 推断出 ）from Paragraph 3 that __

Water can be a liquid, a solid or a gas. When it is a solid, it can be as hard as stone. When it is a liquid, it can run through your fingers. When it is a gas, you may not see or feel it.

Water can change from a solid to a liquid or to a gas easily. This is why we always have fresh water. Now let us find out how it does. The heat of the sun turns liquid water into gas from the oceans, seas, rivers and lakes. The heat also turns liquid water into gas from the ground, the plants and the animals. Water in the gas rises and turns into clouds in the air.

When the clouds come near a mountain, they rise high. As the clouds rise, they get cooler. The higher they rise, the cooler they become. Then more and more water gas turn into water drops. In this way, the drops of water in the clouds get bigger and bigger. Then they fall to the earth as rain.

根据短文内容，选择正确答案

1.What is the solid of water?

A．Rain             B．Gas              C．Stone            D．Ice

2.When the water is a _____, we may not see or feel it.

A．liquid            B．soild             C．gas              D．snow

3.The water in the oceans turns into clouds because _____ 

A．the wind                              B．the heat of the sun

C．the mountain                          D．the earth

4.According to the passage, it rains most over the_____     

A．seas             B．oceans            C．mountains         D．farms

5.The higher you go up the mountain, _____you will feel.

A．the cooler         B．the hotter         C．the heavier        D．the bigger

The world of out-of-doors is full of secrets. And they are so interesting that quite a lot of people are busy studying them. All around us are birds, animals, trees and flowers. The facts about how they  1  and grow are as interesting as anything could be. Do you know that one of the greatest presidents of the USA spent hours and hours  2  birds? A businessman who lives near New York city became so  3  in insects that he began to collect them. He now has more than one thousand different kinds carefully  4  in glass boxes. Come then with me, and I will help you find some of nature’s secrets. Let us go  5  through the woods and fields. Here we shall find how a rabbit tells the other rabbits that there is danger. We shall  6  a mother bear and her young ones as they look for  7  and get ready for winter sleep. We shall watch bees dancing in the air to let other bees know  8  they can find food. I will show you many other interesting things, but the thing that I can  9  you is to keep your eyes and ears  10  when you go out of doors. Nature tells her secrets only to people who look and listen carefully.