卷子答案网-一个不只有答案的网站Unit 2 Topic 2
知识笔记+应用示例
Staying up late is bad for your health.
熬夜对身体不好。
staying up late 在此是动名词短语作主语，谓语动词用单数。
此句中，staying up late 是动名词短语，表示“熬夜”。
动名词短语可以作主语、宾语、定语、状语等。作主语时，谓语动词一般用单数。
例句：
作主语：
Eating too much junk food is bad for your health. 吃太多垃圾食品对健康不好。
Driving too fast is dangerous. 开车太快很危险。
Lying is wrong. 说谎是错误的。
作宾语：
I don't like staying up late. 我不喜欢熬夜。
I'm tired of staying up late. 我厌倦了熬夜。
I'm going to stop staying up late. 我要戒掉熬夜。
be bad for sb./ sth.
对某人/某物不好
be bad for sb./ sth. 表示“对某人/某物不好”。
be good for sb./ sth. 表示“对某人/某物有好处”。
例句：
be bad for sb./ sth.：
Eating too much junk food is bad for your health. 吃太多垃圾食品对健康不好。
Smoking is bad for your lungs. 吸烟对肺不好。
Drinking too much alcohol is bad for your liver. 喝太多酒对肝不好。
be good for sb./ sth.：
Eating fruits and vegetables is good for your health. 吃水果和蔬菜对健康有好处。
Exercise is good for your body. 运动对身体有好处。
Reading is good for your mind. 读书对心灵有好处。
... and it can even cause cancer.
……它甚至可以导致癌症。
can even 表示“甚至”。
cause 表示“导致”。
例句：
can even：
I can even speak English. 我甚至会说英语。
He can even lift a car. 他甚至能举起一辆车。
She can even run a marathon. 她甚至能跑马拉松。
cause：
Smoking causes cancer. 吸烟导致癌症。
Pollution causes air pollution. 污染导致空气污染。
Stress causes mental health problems. 压力导致心理健康问题。
l must ask him to give up smoking.
我必须要他戒烟。
ask sb. to do sth. 意为“要求某人做某事”，其否定形式为ask sb. not to do sth.。
用法类似的动词还有want、tell、get等。
例句：
I must ask him to help me with my homework. 我必须要求他帮我做作业。
I must tell her to stop talking. 我必须告诉她不要再说话了。
I must get him to go to the doctor. 我必须让他去看医生。
What Mothers Said to Eat
妈妈说过的需要吃的(食物)
What Mothers Said to Eat 表示“妈妈说过的需要吃的（食物）”。
表示妈妈们经常叮嘱孩子们要吃的食物。
例句：
What Mothers Said to Eat are fruits and vegetables. 妈妈们经常叮嘱孩子们要吃水果和蔬菜。
What Mothers Said to Eat are whole grains and lean protein. 妈妈们经常叮嘱孩子们要吃全谷物和瘦肉。
What Mothers Said to Eat are healthy fats and limited sugar. 妈妈们经常叮嘱孩子们要吃健康的脂肪和少糖。
Once，cabbage was on his plate.
有一次他的盘子里放的是洋白菜。
Once 表示“有一次”，后接一个句子或一个时间状语从句。
此句中，Once 是时间状语，表示“有一次”。
例句：
Once upon a time, there was a beautiful princess. 从前，有一位美丽的公主。
Once I was a child, I loved to play with toys. 小时候，我喜欢玩玩具。
Once I got my driver's license, I was able to drive myself to school. 我拿到驾照后，就可以自己开车去上学了。
As soon as Michael saw it, he got mad.
迈克尔一看到它,就很生气。
as soon as 表示“—……就……”，
例句：
As soon as I saw you, I knew I was in love. 一看到你，我就知道我爱上你了。
As soon as I heard the news, I called my parents. 一听到这个消息，我就给父母打电话了。
As soon as I got home, I went to bed. 一回到家，我就去睡觉了。
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