Unit 3 Food and Culture Period 2 Reading and Thinking 课本知识梳理与重难点精讲2026-2027学年高中英语人教版（2019）选择性必修第二册

人教版（2019）选择性必修第二册　Unit 3 Food and Culture

Reading and Thinking　课本知识梳理与重难点精讲

适用：高中英语人教版（2019）选择性必修第二册　｜　范围：Reading and Thinking 与 Using Language 两个语篇　｜　内容：8 个长难句 · 7 组核心词汇 · 40 道检测　｜　建议用时：45 分钟

怎么用：先看"课文脉络"表，把两个语篇的内容对到句子号上；再逐句拆 8 个长难句，重点看"难点"那一行；词汇按"教材例句—搭配—辨析"三层记，别只背汉语；最后 40 道检测一次做完，错哪道就回看对应那句。

一、课文脉络

篇目	课文写了什么	对应句子
Culture and Cuisine	一地人吃什么，就能看出这里种什么、过什么日子、喜欢什么	1
Culture and Cuisine	中餐到了美国被改造：左宗棠鸡就是炸鸡块加甜酱、再撒红辣椒	2
Healthy Eating	加工食品营养少、糖盐脂多；每天从糖里摄入 25% 以上热量的人，心脏病风险翻倍	3、4、5
Healthy Eating	理想的饮食是均衡的；没有一劳永逸的诀窍——不过量，吃慢些	6、7、8

二、长难句精讲

1. At a minimum, the kinds of food local people consume tell us what they grow in their region, what kinds of lives they lead, and what they like and do not like.（Reading and Thinking）

难点：三个 what 并列不难，难在 local people consume 这一截——它没有连接词，也不是谓语。

拆解：At a minimum ／ the kinds of food local people consume ／ tell us ／ what they grow in their region ／ what kinds of lives they lead ／ what they like and do not like

语法：food 后面已经有一个谓语 tell，所以 local people consume 只能是定语从句，关系代词 that／which 在从句里作 consume 的宾语，被省掉了。三个 what 从句并列，都作 tell us 的直接宾语（tell sb sth 双宾语）。

词块：at a minimum 至少；lead／live a life 过日子（两种搭配都成立：lead a quiet life 与 live a quiet life 同样常见，lead 偏书面，不能说 live 是错的）；in one's region 在某人的家乡、所在地区

仿写：At a minimum, the songs a city hums tell you what its people do for a living, how they spend their evenings, and what they miss when they are away.（最起码，一座城市哼的歌就能说明这里的人靠什么吃饭、晚上怎么过、离开之后想念什么。）

 

2. America's most popular Chinese dish is General Tso's chicken, which consists of fried chicken covered in a sweet sauce, flavoured with hot red peppers.（Reading and Thinking）

难点：逗号后的 which 不是"哪一个"；两个分词短语各挂谁，不能凭"就近"猜——看有没有逗号，就能判出 flavoured 那一截属于整道菜。

拆解：America's most popular Chinese dish ／ is General Tso's chicken ／ which consists of fried chicken ／ covered in a sweet sauce ／ flavoured with hot red peppers

语法：which 引导非限制性定语从句，先行词是 General Tso's chicken。covered in a sweet sauce 是过去分词短语作后置定语，修饰 fried chicken；flavoured with hot red peppers 前有逗号，与 covered 不在同一层，它是与 which 从句并列的省略结构（＝and which is flavoured with hot red peppers），逻辑主语是 which，即先行词 General Tso's chicken 整道菜，不是就近的 sauce。consist of 不用被动，也不用进行时。

词块：consist of 由……组成（＝be made up of）；be covered in／with 覆着一层……；be flavoured with 用……调味

仿写：The most popular breakfast here is hot dry noodles, which consists of noodles covered in sesame paste, flavoured with spring onions and pickled beans.（这里最受欢迎的早点是热干面：面条拌上芝麻酱，撒上葱花和酸豆角。）

 

3. Processed foods often contain less nutrition, and have higher quantities of sugar, salt, and fat than fresh ingredients.（Using Language）

难点：and 后面的 have 前面没有主语；比较的两头是两种食物，不是两种营养。

拆解：Processed foods ／ often contain less nutrition ／ and ／ have higher quantities of sugar, salt, and fat ／ than fresh ingredients

语法：一个主语带两个并列谓语 contain 和 have，第二个谓语承前共用主语。higher... than 引出比较，比较对象是 fresh ingredients，与前面的 processed foods 对照，两头都是食物才对称。

词块：processed food 加工食品；contain less nutrition 营养成分更少；quantities of 大量的（作主语时谓语用复数，a quantity of 则看后面接的名词）

仿写：Frozen dumplings often cost less, and contain more salt and oil than the ones made at home.（速冻饺子通常更便宜，盐和油却比家里包的更多。）

 

4. This is true regardless of how healthy the rest of their diet might be.（Using Language）

难点：of 后面不是名词，而是一整个从句；This 指什么，得回头看上一句。

拆解：This is true ／ regardless of ／ how healthy the rest of their diet might be

语法：regardless of 是短语介词，后面可接名词，也可接疑问词引导的从句；本句接的是 how＋形容词 引导的宾语从句，作 of 的宾语。in spite of／despite 只能接名词或动名词，接不了从句，这是两者的分界。

词块：regardless of 不管、不顾；the rest of 其余的；might be 也许是（语气比 is 弱，表示不肯定的判断）

仿写：The soup is worth the wait regardless of how long the queue is.（不管队伍排多长，这碗汤都值得等。）

 

5. And in America, people who receive 25% 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.（Using Language）

难点：倍数句里冒出来一个 than——as...as 和 than 混在同一句里，只能取一处；两个 who 从句各管一个 people。

拆解：And in America ／ people who receive 25% 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

语法：倍数的标准形式是"倍数＋as＋形容词／副词原级＋as"。本句写成 twice as likely ... than ...，规范写法应为 twice as likely ... as ...，考试按 as ... as 作答。be likely to do sth 意为可能做某事。

词块：be likely to do sth 可能做某事；die from 死于（外因，如疾病、事故）；one's daily calories 每日摄入的热量

仿写：Students who sleep less than six hours are twice as likely to catch a cold as those who sleep eight.（每天睡不到六小时的学生，感冒的几率是睡八小时者的两倍。）

 

6. The ideal diet is a balanced one, without too much or too little of any one thing.（Using Language）

难点：one 不是数词"一个"；without 那一截不是修饰 is 的状语。

拆解：The ideal diet ／ is ／ a balanced one ／ without too much or too little of any one thing

语法：one 是代词，替代前面出现过的可数名词 diet，避免重复。without... 是介词短语，补充说明这个 diet 具体指什么。too much／too little 修饰不可数名词，any one thing 指任何单一的一种食物。

词块：a balanced diet 均衡饮食；too much／too little 过多／过少；of any one thing 任何单一样东西

仿写：A good weekend is a quiet one, without too many plans or too little sleep.（好的周末是安静的周末：计划不太多，觉也不太缺。）

7. There is no one trick to healthy eating.（Using Language）

难点：整句只有 8 个词，坑却有两个——no one trick 的 one 是"唯一一个"，to 是介词。

拆解：There is ／ no one trick ／ to healthy eating

语法：There be 句型。no one trick 强调的是"没有哪一个单一的诀窍"，不是"一个诀窍都没有"。to 是介词，后面接名词或动名词，所以是 a trick to doing sth，不是 trick to do sth。

词块：a trick to (doing) sth 做某事的诀窍；play a trick on sb 捉弄某人；do the trick 奏效

仿写：There is no one trick to learning characters—you simply write them until your hand remembers.（认字没有一劳永逸的窍门，写到手自己记住了为止。）

 

8. Finally, a fundamental key to healthy eating is to eat slowly.（Using Language）

难点：一句里两个 to，一个是介词，一个是不定式符号，长得一模一样。

拆解：Finally ／ a fundamental key to healthy eating ／ is ／ to eat slowly

语法：a key to 里的 to 是介词，接名词或动名词作定语，修饰 key；is 后面的 to eat slowly 是动词不定式作表语，说明这个 key 到底是什么。同一个 to，两种身份，判断依据是它后面接的是名词还是动词原形。

词块：a key to (doing) sth 做某事的关键；be fundamental to 对……至关重要；eat slowly 细嚼慢咽

仿写：The key to speaking a language well is to use it badly, and often.（把一门语言说好的关键，是先说得不好，而且常说。）

三、核心词汇

1．at a minimum　至少；最低限度

教材：At a minimum, the kinds of food local people consume tell us what they grow in their region...

拓展：At a minimum, the report should name the schools it is talking about.（这份报告至少该点出它说的是哪些学校。）

搭配：at a minimum 至少（＝at least）；keep sth to a minimum 把……控制在最低限度；the minimum wage 最低工资

派生：minimal adj. 极小的、最低限度的；minimize v. 使降到最低；minimum 本身也可作形容词（the minimum temperature 最低气温）

 

2．region　n. 地区、区域

教材：...what they grow in their region, what kinds of lives they lead...

拓展：Rice grows in the south and wheat in the north—the two regions have never eaten the same way.（南方种稻，北方种麦，这两个地区吃得从来就不一样。）

搭配：in the region of 大约（＝about）；a regional dish 地方菜；the region's climate 这一地区的气候

派生：regional adj. 地区的、区域的；regionally adv. 在地区范围内

 

3．contain　v. 含有、容纳；克制（情绪）

教材：Processed foods often contain less nutrition...

拓展：This jar contains twice as much honey as the one on the shelf.（这罐蜂蜜是架子上那罐的两倍。）

搭配：contain sugar／salt 含糖、含盐；contain oneself 克制自己；contain the damage 控制住损失

派生：container n. 容器、集装箱；contents n. 内容物、目录

辨析：contain 说"里面装着什么"，include 说"作为整体的一部分被算进去"——The box contains ten books（箱子里装着十本书，全书在箱内）；The price includes breakfast（价格里含早餐，早餐是价格的一部分）。

 

4．ideal　adj. 理想的、最合适的；n. 理想

教材：The ideal diet is a balanced one...

拓展：A quiet corner by the window is ideal for reading on a rainy afternoon.（窗边安静的角落，下雨的下午看书正合适。）

搭配：be ideal for 对……来说正合适；in an ideal world 在理想情况下；pursue one's ideals 追求理想

派生：ideally adv. 理想情况下；idealize v. 把……理想化