For years I wanted a flower garden. I’d spend hours   31  different things I could plant. I believe they would look nice together.
But then we had Mattew. And Marvin. And the twins, Alisa and Alan. And then Helen. Five children! I was too   32   raising them的grow a garden.
Money was tight（拮据）,as well as time. Often when my children were little, one of them would want something expensive. And I’d have to say, "Do you see a money tree outside? Money doesn’t    33   on trees, you know."
34  , all five got through high school and college（大学）and were off on their own. I started thinking again about having a garden. Then, one morning on Mother’s Day, I was working in my kitchen. Suddenly, I looked out of the window and there was a   35  tree, planted right in my garden. I thought it   36   be a weeping willow(垂柳),because I saw things    37   around on all its branches（树枝）.Then I put my  38   on and I couldn’t believe what I saw. There was a money tree in my garden!
I went outside to have a look. It was    39   ! There were dollar bills all over that tree. There was also a note in the tree. It    40   ,"We all love you, Mom."
【小题1】A-talking about    B. thinking of     C. preparing for       D. looking after

For years I wanted a flower garden. I would spend hours_ _1___ of different things I could plant that would look nice together.
But then we had children, five children! I was too busy  _2____ care of them to grow a garden.
Money was always_3____ . When my children were _4____, one of them would want something that cost too much, and I’d get annoyed and say, “ Do you see a money tree outside? Money doesn’t grow on__5___, you know.”
Finally, all five got through college and were off on their own. I started thinking again about having a __6_____.
I wasn’t sure, though. I mean, gardens do cost money.
Then, one spring morning, _7____ Mother’s Day, I was working in my kitchen. __8____, I heard a car come. I looked out of the window and there was a new tree, planted right _9____ the yard.
There was a money tree in my yard! There were dollar bills, one hundred of them, all over that tree.
That was three years ago. My garden is now very pretty, just the way I wanted. I __10___ what my children did for me, and then I get tears in my eyes every time.

Look at the centre circles of Diagram (图)A and Diagram B. Which of the centre circles looks larger? In fact, they are exactly the same size.
Then look at the picture on the right. What do you see? A vase? Or two faces？Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can never see them at the same time.

“What’s happening? Is something wrong with my eyes?” You may wonder at what you see. Don’t worry. Here is how it goes:
When we look at things, our eyes send messages to our brains and then our brains interpret（解读）the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “visual illusion(视觉错误)”.
Movie makers often make use of visual illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Parkand Honey I shrunk the kids just make use of visual illusions.
【小题1】Why does the centre circle in Diagram A look smaller than that in Diagram B?