1 . 写出下列句子的句子结构
1. Does Jennifer live here?
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2. Chris started learning English a little over three years ago.
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3. The secret of success is honesty and fair dealing.
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4. Whaley invites the rest of the class to join him.
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5. I heard a knock on the door.
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6. This development did not take place overnight.
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7. There are times when your heart is not in your work.
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8. Monkeys seem to have a way with numbers.
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9. It gives us a great feeling of peace.
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10. Our hosts shared many of their experiences.
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2 . 此次事故的主要原因是什么？（汉译英）