What would happen if you tried to blow a soap bubble in freezing weather? Would it freeze solid(固体) and fall to the ground? Would you have to hit it to break it? These questions happened to me on a cold winter day. It was too cold to play in the snow, but it was a perfect time to experiment with blowing frozen bubbles.
To blow frozen bubbles, I used dishwashing soap and a drop of glycerin(甘油) to make it even better. I chose a place out of the wind, and blew bubbles the same way I always do. I watched to see what would happen. Here’s what I learned.
If the temperature is low enough, the skin of the bubbles frosts over (结霜), becoming cloudy instead of clear. And what about those rainbow swirls(旋转) you see in soap bubbles? The rainbow colors stay even when the bubbles frost, but they don’t swirl anymore. The bubbles still stay in the air. They don’t fall to the ground any faster than they would on a warm summer day.
When these frozen bubbles break, they don’t turn into small water drops as summer bubbles do. They turn into flashing rainbow confetti(碎屑) and move slowly to the ground. Sometimes a frozen bubble will roll across the snow without breaking. If nothing disturbs the bubble, it may stay there for a long time. Sometimes I could catch a bubble and hold it until the heat of my hand made it pop.
I learned another thing about blowing frozen bubbles. It’s so interesting that I want to try it again next year.
【小题1】It is the perfect time to blow frozen bubbles on a ___________day.

A.cold winterB.warm springC.hot summerD.sunny autumn
【小题2】When the frozen bubbles break, _________.
A.they make a big soundB.they turn into small drops
C.they fall to the ground like rain D.they become rainbow confetti
【小题3】The purpose of the passage is _______.
A.to learn how to do a science experiment
B.to show the experiment of blowing frozen bubbles
C.to discover games that are fun to play in the snow
D.to invent a new kind of soap that makes stronger bubbles

I’m lying on my back in my grandfather’s orchard (果园), looking up at the branches above me. It is one of the last days of summer. Already the days are shorter and the nights are cooler. Some kinds of apples are already ripe(成熟的). Others will be ready to pick soon. I think of my grandmother’s apple pie, and how I used to make it with her. She died last year, before the apple harvest, and I have not had her pie since then. I really miss her. I hear bees busily humming about, visiting the late summer flowers. The gentle hum of their wings nearly sends me to sleep.
The sky is as blue as my grandfather’s eyes. Above me, big white clouds ran across the sky like pieces of cotton blowing in the wind. School starts in another week, and time seems to have slowed down.
“Sophie!” calls my grandfather. “Is that you?” I stand up, take his hand, and tell him all about my day as we walk through the orchard. We talk about apples, and bees and Grandma. He tells me that he misses her too.
He puts his rough, brown farmer’s hand around my shoulder and pulls me close. “ You know, Sophie,” he says, “ I spent the morning in the attic (阁楼), and you’ll never guess what I found. It’s the recipe(烹饪法) for Grandma’s apple pie. I used to help her make it sometimes. I can’t do it all alone, but you used to help her too. Maybe between the two of us, we can work it out. Want to try?”
“ But it won’t be the same without Grandma,” I tell him.
“That’s true,” he says, “but nothing is the same without Grandma. Still, I don’t think that she would want us never to have another apple pie. What do you say?” I nod yes, and we walk towards home…toward an afternoon in the farmhouse kitchen, making Grandma’s famous apple pie.
【小题1】We learn from the passage that Sophie        .

A.likes to watch clouds in the attic
B.comes to the orchard after school
C.enjoys Grandma’s apple pie very much
D.picks many apples in the orchard
【小题2】Both Sophie and her grandfather used to ______.
A.help Grandma make apple pies
B.spend summer afternoons in the orchard
C.enjoy fresh fruit in the farmhouse kitchen
D.walk alone among the apple trees
【小题3】The underlined part in the last paragraph shows       .
A.how much Sophie’s grandmother loved Sophie
B.how much Sophie’s grandfather likes apple pies
C.how much Sophie loves her grandfather’s orchard
D.how much Sophie’s grandfather misses Grandma
【小题4】Which of the following might be the best title for the passage?
A.My grandfather’s orchardB.My grandmother’s apple pie
C.A morning in the atticD.The last days of summer

What would happen if you tried to blow a soap bubble in freezing weather? Would it freeze solid(固体) and fall to the ground? Would you have to hit it to break it? These questions happened to me on a cold winter day. It was too cold to play in the snow, but it was a perfect time to experiment with blowing frozen bubbles.

To blow frozen bubbles, I used dishwashing soap and a drop of glycerin(甘油) to make it even better. I chose a place out of the wind, and blew bubbles the same way I always do. I watched to see what would happen. Here’s what I learned.

If the temperature is low enough, the skin of the bubbles frosts over (结霜), becoming cloudy instead of clear. And what about those rainbow swirls(旋转) you see in soap bubbles? The rainbow colors stay even when the bubbles frost, but they don’t swirl anymore. The bubbles still stay in the air. They don’t fall to the ground any faster than they would on a warm summer day.

When these frozen bubbles break, they don’t turn into small water drops as summer bubbles do. They turn into flashing rainbow confetti(碎屑) and move slowly to the ground. Sometimes a frozen bubble will roll across the snow without breaking. If nothing disturbs the bubble, it may stay there for a long time. Sometimes I could catch a bubble and hold it until the heat of my hand made it pop.

I learned another thing about blowing frozen bubbles. It’s so interesting that I want to try it again next year.

1.It is the perfect time to blow frozen bubbles on a ___________day.

A.cold winter        B.warm spring        C.hot summer        D.sunny autumn

2.When the frozen bubbles break, _________.

A.they make a big sound                   B.they turn into small drops

C.they fall to the ground like rain             D.they become rainbow confetti

3.The purpose of the passage is _______.

A.to learn how to do a science experiment

B.to show the experiment of blowing frozen bubbles

C.to discover games that are fun to play in the snow

D.to invent a new kind of soap that makes stronger bubbles

 

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