1、选选 1 Unit 3 Using language 知识点知识点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
2、从句用陈述语气）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 muchfatty 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
3、状况。4. And in America, people who receive 25%o of their daily calories or more through sugarare 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 people
4、2) 两个 who 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 isdangerous, we already
5、 know that sugar 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 100-150calories a day from sugar, wh
6、ich is less than what is usually contained in one can of sweetdrink 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”，
7、常见后接虚拟语气从句的动词：一坚持：insist 二命令：order, command三要求：demand, require, request 四建议：advise, suggest, propose, recommend2) 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 outsweet drinks altogether.换言之，要想身体
8、健康，就必须少吃甜点，完全禁饮甜饮料。1) in other 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 processedfoods.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
9、维生素和纤维素的水果和蔬菜，而不是加工食品。1) keep 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
10、些食物为强壮骨骼、肌肉生长提供必要的蛋白质。1) besidesprep.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 yourbody that you are full
11、.开始进食大约 20 分钟后，你的大脑才会告知你的身体“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 foodbeca
12、use they still feel hungry.这意味着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 toenjoy 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) ea
13、ting slowly 为动名词短语作主语，谓语动词 allows 用三单形式。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 aday 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)
14、 in addition 另外；而且=besides/furthermore/moreover/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 onemeal, and then a little in the next.而
15、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 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 yourdiet.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 makehow 在 decide 后引导宾语从句3) make the right decisions about作出关于的正确决定
