2021年杭州高一年级英语下学期第一单元练习题(2)

　　9. We also make choices based on how the products are grown or made: environmentally friendly foods, or "eco-foods", are made by companies who have tried to use green and clean ways to make the foods. 我们对产品的作出的选择还决定于生产和加工方式，要是环保性的或者说是生态性的食物，是厂家用绿色而又清洁的方式生产出来的食物。

　　[问]此句是否定语从句中套定语从句。

　　[答]对。that are grown without chemicals 做vegetables 的定语;that can be harmful to human beings and the environment 做chemicals 的定语。

　　11. If our diet includes foods from all the food groups, in the right amounts, we so not have to buy any supplements. 如果我们食物品种多，数量恰当，我们就不需要买任何补给品。

　　[问]请解释此句中的if结构和do not have to 相当与need't。

　　12. The same goes for "crash diets" that some companies say will make us lose weight fast. 对于一些公司所宣称可以让我们减肥的减肥餐也如此。

　　[问]that some companies say will make us lose weight fast 起什么作用?

　　[答]定语从句。that 在从句中作主语代替“crash diets"。

　　13. Instead of eating expensive diet foods or going on unhealthy diets, we can simply try to eat less fat and sugar and exercise more. 我们不需要去吃那些昂贵的固定饮食或者不健康的饮食， 只需要少吃脂肪和糖， 多锻炼就行了。

　　[问]请问intead of 介词短语?

　　[答]instead of 是介词短语， 表示“代替”的意思。

　　14. The best way to make sure that we will feel and look fine is to develop healthy eating habits. 保健的较好方式是养成健康的饮食习惯。

　　[问]这句话的主句究竟是什么?

　　[答]The best way is to develop healthy eating habits 是这句话的主句 to make sure that we will feel and look fine 不定式短语做定语， 修饰the best way.

　　15. We ought to learn more about our body and the fuel it needs so that we can make sure that we are well prepared for the challenges and opportunities in life.

　　我们应该更多地了解自己的身体以及我们身体所需的养料， 以便我们对生活中所面临的机遇和挑战有充分的准备。

　　[问]so that 是什么意思?

　　[答]so that 是“以便”的意思，常引导结果状语从句。

　　16. That means that sandwich or a salad is a good choice, but a chocolate bar or a bag of patato chips is not. 也就是说，要选择三明治和色拉之类的而不是选择巧克力和炸土豆条。

　　[问]如何分析此句句子 成分?

　　[答]“That" 是主语， “mean" 是谓语， 后面整个that引导的两个并列从句是宾语，第二个从句“is not" 后省略了a good choice.

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