Unit 3 using language知识点讲义 人教版高中英语选择性必修第二册.doc

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1、选 1 Unit 3 Using language知识点1. There is much debate nowadays as to what makes up a healthy diet. 当下，何为健康饮食仍众说纷纭。1) as to= as for关于；至于2) what引导宾语从句，在从句中作主语。 make up ；构成2. For example, scientists have insisted for years that a big enemy of health is fatty food. 例如，多年来科学家一直认为健康的大敌是高脂肪食物。1) 坚持说（后跟的宾语从句用

2、陈述语气）insist 坚决要求，坚持（后跟的宾语从句用虚拟语气）2)that在insist(坚持说)后引导宾语从句。3. However, there is increasing evidence that the real driver of poor health is not so much fatty food, as it is sugar. 然而，越来越多的证据表明，导致不良健康的真正因素并非高脂肪食物，而是糖分。1) that引导同位语从句，解释说明evidence的具体内容。2) as it is为一种语言衔接结构，意为“事实上，实际情况是”，多用来陈述一种原因或状况。4.

3、And in America, people who receive 25%o of their daily calories or more through sugar are twice as likely to die from heart disease than people who receive less than 10% a day.在美国，每天从糖分中摄取25或更高卡路里的人死于心脏病的可能性是日摄取量少于10的人的两倍。1) 本句主干为peopleare twice as likely to die from heart disease than people2) 两个wh

4、o引导的定语从句分别修饰先行词people。3) be likely to do可能做某事5. This is true regardless of how healthy the rest of their diet might be. 无论他们饮食的其他方面多么健康，都确实如此。1) regardless of不管；不顾2) how在介词of后引导宾语从句6. Put more simply, while people continue to argue over whether or not fatty food is dangerous, we already know that su

5、gar is a killer.简单地说当人们还在为高脂肪食物是否有害而争论不休时，我们已经知晓糖分是健康杀手。1) put more simply意为“简单地说”，在句中作状语。2) while引导时间状语从句，该从句中有whether引导的宾语从句。3)主句we already know中有that引导的宾语从句。7. The American Heart Association recommends that we limit ourselves to less than 100-150 calories a day from sugar, which is less than what

6、 is usually contained in one can of sweet drink or in a single candy bar. 美国心脏协会建议我们将每日糖摄入量限制在100至150卡路里以下，少于一听甜饮料或一块糖果通常所含的糖分。1) that在recommends后引导宾语从句，从句用虚拟语气（shoulddo, should可省略） recommend that sb. (should) do建议某人做 【总结】表示建议、命令、要求等的动词所跟的宾语从句用虚拟语气，即从句谓语用“(should动词原形”，常见后接虚拟语气从句的动词：一坚持：insist 二命令：or

7、der, command三要求：demand, require, request 四建议：advise, suggest, propose, recommend 2) which引导非限制性定语从句，修饰先行词100-150 calories, 在定语从句中又包含what引导的表语从句。8. In other words, if you want to be healthy, you have to cut down on desserts, and cut out sweet drinks altogether. 换言之，要想身体健康，就必须少吃甜点，完全禁饮甜饮料。1) in other

8、words 换句话说2) cut down on 削减；缩小 cut out 停止做；删去，删除；裁剪9. Beyond this, you can keep healthy by consuming different categories of fresh foods, especially fruit and vegetables, which are full of vitamins and fibre, rather than processed foods. 除此以外，为了保持身体健康，你还可以食用不同种类的新鲜食物，尤其是富含维生素和纤维素的水果和蔬菜，而不是加工食品。1) ke

9、ep healthy 保持健康2) which引导非限制性定语从句，修饰fruit and vegetables3) rather than 而不是 10. Besides this, it is also important to have some meat, beans, or dairy products in your diet, as they provide the necessary protein for strong bones and muscle growth. 此外，饮食中摄取一些肉类、豆类或奶制品也十分重要，因为这些食物为强壮骨骼、肌肉生长提供必要的蛋白质。 1)

10、besides prep.除之外（还）2) 句式It is important to do 做是很重要的It作形式主语，to do不定式为真正主语。3）as“因为”引导原因状语从句。11. As with everything in life, moderation is key. as with 正如；与一样；就来说12. It takes about twenty minutes from the time you start eating for your brain to tell your body that you are full. 开始进食大约20分钟后，你的大脑才会告知你的身

11、体“你吃饱了”。1）It takes sb. some time to do sth.=It take some time for sb. to do做某事花费某人多长时间2) you start eating为省略了关系代词that/which的定语从句，修饰先行词the time.3) tell后接双宾语，that引导宾语从句，作that后的第二个宾语。13. What this means is that people who chew too quickly end up eating too much food because they still feel hungry. 这意味着

12、咀嚼过快的人最终会吃太多食物，因为他们仍然感到饥饿。1) what 引导主语从句, 主句的谓语是is . that 引导的是表语从句，表语从句中包含who引导的定语从句because引导原因状语从句2) end up doing 以做而结束/终结14. Eating slowly also allows your body to digest your food better, and will allow you to enjoy your food more.细嚼慢咽还能让你的身体更好地消化食物、更充分地享受美食。1) eating slowly为动名词短语作主语，谓语动词allows用三

13、单形式。and连接allows和will allow两个并列的谓语动词。2) allow sb. to do允许某人做某事15. In addition, studies show that consistent eating habits, for example, taking three meals a day at the same time each day, are better for our health.此外，研究表明，有规律的饮食习惯对我们的健康更有好处，例如，每天固定时间食用三餐。1) in addition 另外；而且=besides/furthermore/moreo

14、ver/whats more2) that在谓语动词show后引导宾语从句3) taking three meals a day at the same time each day 是动名词短语作例子说明前面的主语eating habits.16. It is also better to eat a modest amount of food each time, rather than to eat a lot in one meal, and then a little in the next.而且最好每餐摄入适量的食物，而不是上一餐吃很多，下一餐吃得很少。1) It is better

15、 to do句式中it 作形式主语，to do不定式为真正主语2) rather than 而不是17. There is no one trick to healthy eating.健康饮食没有诀窍。one trick to一个的诀窍（to为介词） 18. rather adv.恰恰相反；而是 start with从开始 have a healthy attitude towards/ to 对有健康的态度 be on the right track 思路正确 on the road to 在的路上19. It is up to you to decide how you want to live, and to make the right decisions about your diet.1) 固定句式It is up to sb. to do sth. 由某人决定做某事2) and连接两个不定式短语to decide和to make how在decide后引导宾语从句3) make the right decisions about作出关于的正确决定