Doing experiments can be interesting, and you may try the following experiments at home. Make sure that you’ll do them with an adult.

小題1:How many experiments are there in the pictures?
A.Six.B.Five.C.Three.D.Two.
小題2:The following are the instructions on how to do “Step 2” in these experiments. Which one is the right order?
a. Pour 3/4 of the water away. 
b. Put a balloon on the bottle.
c. Put the bottle in a bucket of hot water. The air rises into the balloon.
A.a(chǎn), b, cB.a(chǎn), c, bC.b, a, cD.c, a, b
小題3:What can you see in the bottle at last in Experiment A?
A.Some ice.B.Some water.
C.Some ice and water.D.A cloud and some water.
小題4:What will happen to the balloon in “Step 3” in Experiment C?
A.It will be bigger.B.It will be broken.
C.It won’t change.D.It will be in the bottle.

小題1:C
小題2:B
小題3:D
小題4:D
短文屬于圖表類閱讀。實驗空氣遇冷遇熱的變化。
小題1:細節(jié)理解題。從圖片中可以看出,共有三個實驗。
小題2:綜合理解題。通過認真看圖分析,可以得知。實驗A的第二步是倒出一些水,以便于有形成云的足夠的空間;實驗B的第二步是把瓶子放在熱水中,以便于使瓶中的空氣遇熱上升進入氣球;實驗C的第二步是把氣球放在瓶子上。
小題3:細節(jié)理解題。從實驗A的第④步“…there is a cloud”可以看出瓶中產(chǎn)生了云,當然里面還有原來的水。
小題4:推理判斷題。因為“cold air falls”可知,瓶中的空氣遇冷要下降,氣球也隨之下降進入瓶中。
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閱讀短文,判斷下列句子是否符合短文內(nèi)容。符合的寫“A”,不符合的寫“B”。

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1. Turn off the tap(水龍頭) in lime.
2. Take shorter showers.
3. Don’t let water run while washing your face and reuse the water after we finish washing.
4. Encourage your friends and neighbors to join in the action of saving water.
小題1: Nobody can live without water.
小題2: About one third of our body is water
小題3: If one doesn't have enough water, he’ll feel tired and may get ill.
小題4: We’d better take longer showers and let water run while washing.
小題5: It’s our duty to protect water resources and save water.

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