1 . 听下面一段较长对话，回答以下小题。1.
2.
3.
4.
| A．Because he thought smoking would do good to his heart. |
| B．Because he didn’t believe smoking would be that harmful. |
| C．Because he thought smoking could help him feel relaxed. |
| D．Because he believed smoking could make him feel excited. |
| A．Air pollution. | B．Smoke. |
| C．Secondhand smoke. | D．Thirdhand smoke. |
| A．Because the government hasn’t taken any effective measures to stop smoking. |
| B．Because each year many children’s death is connected with secondhand smoke. |
| C．Because smoking and secondhand smoke do more harm to children than adults. |
| D．Because the government has passed the relevant law to prevent from smoking. |
| A．The smell of tobacco smoke left on things such as clothes, furniture and so on. |
| B．The tobacco smoke accidentally caused by the third person who smokes nearby. |
| C．The poisonous chemicals released from things like clothes, furniture and so on. |
| D．The poisonous chemicals from tobacco smoke left on things like clothes etc. |
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