阅读理解。
The First Time I Went on a Plane
The first time I went on a plane was when I went to Hong Kong with my dad.
When I just saw the plane, I thought it was very big. But when there were a lot of passengers who
sat on the plane, it wasn't very big anymore. It could carry more than 500 people. That was so amazing!
When the plane flew up into the sky, my ears started to hurt. It hurt me so much that I wanted to cry.
I said to myself, "Don't cry. I can't cry." But I couldn't hold back my tears. "If you chew (嚼) a piece of
gum, it will stop the harm," dad said. When I heard what my dad said, I chewed a piece of gum. But it
was no use. My ears still hurt. Now when I think about going on a plane, I will be very scared.
Since then, I have hated taking the plane, but I love my motherland. I'd like to go to China to look a
tour beautiful mountains and rivers. I hope that I can slowly be fit to go on a plane.
结合短文内容，进行同义句型转换。
1. They flew to New York _____ _____ last summer.
They went to New York last summer.
2. The ship is very big. It can hold over _____ _____ _____ 2,000 people at a time.
The very big ship can 2 ,000 people at a time.
根据短文内容，回答下列问题。
3. What happened to the writer when the plane went up?
His ear _____ _____ _____.
4. How did chewing gum help the writer?
It _____ _____ at all.
5. What does the writer think of taking a plane?
He is _____ _____ taking a plane, though he has to.
缺失，缺隙的近远中径过窄，可摘局部义齿修复。排列人工牙时，下列哪项是正确的（）
二牙减径后排 * * 牙
二牙减径后排 * * 牙
二牙减径后排 * * 牙