1 . 请根据句意指出下列句子中划线单词的词性与汉语意思。
1. The river becomes a natural boundary between the two countries.
2. He shouldn’t have braked the car abruptly (突然地) on such an icy road.
3. For the past few years, a great number of banks have opened branches in Shanghai, the biggest financial centre in China.
4. I was really surprised to hear the news that such a brilliant star as Michael Phelps should take drugs!
5. It should be broadcast on Saturday and Sunday afternoons so that we students can have the chance to watch it.
6. Computers can help people in different ways. For example, computers help scientists in analyzing data and doing complex calculations.
7. Doctors warn that angry feelings can lead to heart disease, stomach problems, headaches, emotional problems and possibly cancer.
8. Different people have different views about whether it is wise to pay kids with cash for doing housework.
9. The current situation, in a certain degree, may cast a shadow over the future of the talk.
10. Don’t be too casual at work because work is supposed to be taken seriously.