Conversation 1

【主题分类】长对话：工作和人际关系

【高级表达】

Bride n. 新娘

Wrap up 完成

Client n. 客户

Advertising n. 广告业

Natural n. 天才

【关键句型】

1. I bet Brenda is glad it’s done with, and she can focus on wedding preparations. 我保证布兰达很开心终于做完了，这样她能专注地准备婚礼了。

2. What line of work are you in? 你是从事什么行业的？

3. If you hadn’t told me that, I would have guessed they were baked by the restaurant. 要不是你跟我说了，我肯定会猜这些是饭店里烤出来的。

【听力原文】

W: Hi, my name’s Cathy. Nice to meet you!

M: Nice to meet you too, Cathy. My name’s John. I’m a university friend of the bride. What about you? Who do you know at this party?

W: I am a colleague of Brenda. I was a little surprised to be invited, to be honest. We’ve only been working together the last six months, but we quickly became good friends. We just wrapped up a project with a difficult client last week. I bet Brenda is glad it’s done with, and she can focus on wedding preparations.

Oh, yes, so you’re Cathy from the office. Actually I’ve heard a lot about you, and that project. The client sounded like a real nightmare.

W: Oh, he was. I mean we deal with all kinds of people on a regular basis. It’s part of the job, but he was especially particular, enough about that. What line of work are you in?

M: Well, right out of college, I worked in advertising for a while. Recently though, I turn my photography hobby into a small business. I’ll actually be taking photos during the big event as a wedding gift.

W: That sounds wonderful and very thoughtful of you. I bake just as a hobby but Brenda has asked me to do the cake for the wedding. I was a bit nervous saying yes, because I’m far from a professional.

M: Did you bake the cookies here at the party tonight?

W: Yes, I got the idea from a magazine.

M: They are delicious. You’ve got nothing to worry about. You’re a natural.

W: You really think so?

M: If you hadn’t told me that, I would have guessed they were baked by the restaurant. You know, with your event planning experience, you could very well open your own shop.

W: One step at a time. First I’ll see how baking the wedding cake goes. If it’s not a disaster, maybe I’ll give it some more thought.

【答案解析】

Q1. What did Cathy and Brenda finish doing last week?

答案： C。考点在于理解整个对话前部分的内容，即Cathy 和新娘的关系。问题有两个关键要素：两人一起完成的，上周完成的。A选项是两人共事的整个时间；B选项是新娘一个人做的事情；D选项是干扰项，全文并未提及，这也考察了wrap 这个词语的不同意思。因此C选项是正确的，两人刚刚结束了一个棘手的项目。Troublesome 总结了a difficult client，a real nightmare, especially particular这几个对客户进行描述的词语。

Q2. What is John going to do for Brenda?

答案： A。此题考点是John为新娘将做什么事情。A选项正确，同义表述了男士所言will be taking photos during the big event as a wedding gift。The big event 特指wedding。B是男士过去从事的职业，C是男士现在的职业，D中的派对就是对话双方正在参加的活动，但全文并未说此派对是男士为新娘举办的。

Q3： How did Cathy feel when asked to bake the cake?

答案：B。此题考查女士对将要做婚礼蛋糕的心情。第七段女士说“I was a bit nervous saying yes”。A,C全文对话未提及，D的 “surprised”是接到婚礼邀请函的心情。

Q4: What does the man suggest the woman do?

答案：A。此题考查理解男士对女士未来职业的建议，文中他建议女士“you could very well open your own shop”。A中的bakery和文中的shop相对。其他选项均不符合。

Conversation 2

【主题分类】长对话：高中和大学生活的区别

【高级表达】

Dormitory n. 宿舍

Self-discipline n. 自律

Assignment n.任务，作业

Academic adj. 学术的

Commitment n. 义务，承诺

【关键句型】

1. It's up to your own self-discipline how much effort you put into study. 你能投入多少精力到学习上就取决于你的自律。

2. It's just that suddenly at university you are expected to behave like an adult, that means concentrating on the direction of your life in general and your own academic performance specifically. 只是在大学，突然之间你就被期待像成年人那样处事.这意味着你既要专注于自己人生的总体方向，还要特别专注于自己的学业表现。

3. Also, there are a lot of wonderful clubs, but you shouldn't allocate too much time to club activities, unless they are directly related to your study. 此外，还有许多很棒的社团，但你不应将过多时间拨给社团活动，除非它们与你妁学业直接相关。

【听力原文】

M: You are heading for a completely different world now that you are about to graduate from high school.

W: I know it's the end of high school, but many of my classmates are going on to the same university and we are still required to study hard, so what's the difference?

M: Many aspects are different here at university. The most important one is that you have to take more individual responsibility for your actions. It's up to your own self-discipline how much effort you put into study. Living in college dormitories, there are no parents to tell you to study harder or stop wasting time. Lecturers have hundreds of students and they are not going to follow you up or question you if you miss their lectures.

W: Nobody cares, you mean?

M: It's not that nobody is concerned about you. It's just that suddenly at university you are expected to behave like an adult, that means concentrating on the direction of your life in general and your own academic performance specifically.

W: For example?

M: Well, like you need to manage your daily, weekly and monthly schedules so that you will study regularly. Be sure to attend all classes and leave enough time to finish assignments and prepare well for examinations.

W: Okay, and what else is different?

M: Well, in college there are lots of distractions and you need to control yourself. You will make interesting friends, but you need only keep the friends who respect your student commitments. Also, there are a lot of wonderful clubs, but you shouldn't allocate too much time to club activities, unless they are directly related to your study. It's also your choice if you want to go out at night, but you will be foolish to let that affect your class performance during the day.

W: Well, I'm determined to do well at university and I guess I am going to have to grow up fast.

【答案解析】

Q5: What does the man say about college students as compared with high schoolers?

答案：C。C）与第3段男士介绍大学与高中的一项区别“you have to take more individual responsibility for your actions”相符。A歪曲了“It's up to your own self-discipline how much efforts you put into study”的意思，原句是侧重于强调自己要负责规划自己的学习，并非明确要求大学生必须更努力学习。 B）则将“there are a lot of wonderful clubs”过度推岀推演为大学生必须参加社团。D）故意混淆“self-discipline”（自律）与academic discipline（学科）的意思，为误导选项。

Q6: What are college students expected to do according to the man?

答案：D。问题考点在于理解男士对大学生需要想成年人一样自我规划和自我负责的强调。D选项符合题目要求。A）将男士所说的“为考试做好准备”（prepare well for examinations）改为了“为职业生涯做好准备"；B）将男士建议女士慎重择友（you need only keep the friends who...）改为了尽可能多交友；C）所说的“树立长远目标”问题未原文中出现。

Q7: What kind of friends does the man suggest the woman make as a college student?

答案：B。B项符合男士建议“你只需与尊重你学生义务的朋友保持交往”（youneed only keep the friends who respect your student commitments）这一条。A和C在对话中并无依据。D将参加社团的建议和交友建议混淆了。

Q8: What kind of club activities should college students engage in according to the man?

答案：D。此题考查是否理解了男士对大学生要理性挑选合适社团的建议。D正确解读了男士所建议的“不应花太多时间在社团活动上，除非它们与你的学 习直接相关（shouldn't..., unless.）”。A在文中无根据。B）同7题D）项，在“选择朋友”与“参 加社团”之间强加联系。C为干扰项，将确实在文中出现的individual 和interesting 等，但是与社团无关的词语杂糅在一起。

Passage One

Passage One

【主题分类】听力篇章：成功与打破传统

【高级表达】

Unorthodox adj. 非正统的，非传统的

Refine v. 改进，改善

Instinctively adv. 凭直觉地，不由自主地

Explosive adj.爆炸性的

Trophy n 奖杯，荣誉

【关键句型】

1. Instead of trying to refine old formulas, they invent new ones. 他们创造新事物，而不是对旧方法进行改良。

2. At the crack of dawn he would run up the slopes with his skis on, an unbelievably backbreaking activity. 刚一破晓，他就穿着滑雪板登坡，这是一项异常费力的活动。

3. His experiments resulted in a new style that was almost exactly opposite the accepted technique of the time. 他通过多次试验找到了一种几乎与当时的常规技术完全相反的新方式。

4. It involved skiing with his legs apart for better balance and sitting back on the skis when he came to a turn.它包括滑雪时双腿分开以获得更好的平衡，转弯时向后坐于滑雪板上。

【听力原文】

Most successful people are unorthodox persons whose minds wander outside traditional ways of thinking. Instead of trying to refine old formulas, they invent new ones.

When Jean-Claude Killy made the French national ski team in the early 1960s, he was prepared to work harder than anyone else to be the best. At the crack of dawn he would run up the slopes with his skis on, an unbelievably backbreaking activity. In the evening he would do weight lifting and running. But the other team members were working as hard and long as he was. He realized instinctively that simply training harder would never be enough.

Killy then began challenging the basic theories of racing technique. Each week he would try something different to see if he could find a better, faster way down the mountain.His experiments resulted in a new style that was almost exactly opposite the accepted technique of the time. It involved skiing with his legs apart for better balance and sitting back on the skis when he came to a turn. He also used ski poles in an unorthodox way to propel himself as he skied. The explosive new style helped cut Killy's racing time dramatically. In 1966 and 1967 he captured virtually every major skiing trophy. The next year he won three gold medals in the Winter Olympics, a record in ski racing that has never been topped.

【答案解析】

Q9: What does the speaker say about most successful people?

答案：A。A）符合第一段对大多数成功人士的描述“在思维上偏离传统思维方式的非正统人 士”。文中的具体人物“work harder than anyone else”,但不能泛化为“大多数成功人士”，B项排除。C与第一段意思完全相悖。D项文中并无提及该信息。

Q10 : What does the speaker say about Killy's experiments?

答案：B。B）正确概括了第三段“他通过多次试验找到了一种几乎与当时的常规（滑雪） 技术完全相反的新方式/新技术”。A把原文“试验出的创新方式让下坡更快更好”过度理解为了“推动了滑雪运动的普及度。C）将基利对滑雪杆使用方法的创新“由正统方式变为非正统方 式"曲解为“由非科学方式变为科学方式”。D将explosive所修饰的new style （经多次试验而成的新技术），偷换成了爆炸性的新闻。

Q11 : What is said to be Killy's biggest honor in his skiing career?

答案：C。C正确复现第三段末句“第二年他在冬奥会上获得了三枚金牌”。A把原句中的“创新不需要天赋”这一信息偷换成“他是公认的天才”这一意思，设置干扰。B）将“他几乎获得了所有滑雪大奖”降级为了“参加了全球所有重大滑雪赛事”。D）所说的三年打破三次记录不符合文中所述，文中只谈及他在1968年打破了一次记录。

Passage Two

【主题分类】篇章：负面情绪的危害 

【高级表达】

Toxic adj. 有毒的

Inject v. 注射

Poisonous adj. 有毒的

Irritated adj. 愤怒的

Subconscious n. 潜意识

【关键句型】

1. Remember how you feel when you’re speeding down the highway and a big truck suddenly brakes twenty meters in front of you. 回想一下你在高速公路上疾驰、前 方20米处突然有辆大卡车急刹车时的感觉。

2. The toxic substances that fear, anger, frustration, and stress produce not only kill guinea pigs but kill us off in a similar manner. 恐惧、愤怒、沮丧和压力产生的有毒物质不仅会杀死豚鼠，也会以类似的方式杀死我们。

3. Once we recognize that these things happen to us, we are halfway to doing something about them. 一旦意识到这些事情发生在我们身上，我们（的身体）其实已经在着手处理这些事情了。

【听力原文】

Scientific experiments have demonstrated incredible ways to kill a guinea pig, a small furry animal. Emotional upsets generate powerful and deadly toxic substances. Blood samples taken from persons experiencing intense fear or anger when injected into guinea pigs have killed them in less than two minutes. Imagine what these poisonous substances can do to your own body.

Every thought that you have affects your body chemistry within a split second. Remember how you feel when you’re speeding down the highway and a big truck suddenly brakes twenty meters in front of you. A shockwave shoots through your whole system. Your mind produces instant reactions in your body.

The toxic substances that fear, anger, frustration, and stress produce not only kill guinea pigs but kill us off in a similar manner. It is impossible to be fearful, anxious, irritated, and healthy at the same time. It is not just difficult, it is impossible.

Simply put, your body's health is a reflection of your mental health. Sickness will often then be a result of unresolved inner conflicts which in time show up in the body.

It is also fascinating how our subconscious mind shapes our health. Do you recall falling sick on a day when you didn't want to go to school? Headaches brought on by fear?

The mind-body connection is such that i£ for example, we want to avoid something, very often our subconscious mind will arrange it. Once we recognize that these things happen to us, we are halfway to doing something about them.

【答案解析】

Q12 : What happens to guinea pigs, when blood samples of angry people are injected into them?

答案：D。D同义复现给豚鼠注射恐惧愤怒者的血样时发生的事（have killed them in less than two minutes）。 A和C是干扰项，文中均指人类的负面情绪而非豚鼠的反应。B将首段“注射血样后豚鼠在两分钟内毙命”改为“豚鼠失去了知觉”，不准确。

Q13 : What does the speaker say about every thought you have?

答案：A。A直接对应 第二段首句“你的任何想法都会在瞬间影响你身体的化学物质（Every thought that you have affects your body chemistry within a split second）”。B、C、D均在原文中并无信息支持。

Q14: What does the speaker say is impossible?

答案：D。 D正确概括了第三代段第二句“不可能在恐惧、焦虑、愤怒等消极情绪中同时保持健康（It is impossible to be fearful, anxious, irritated, and healthy at the same time）”。 A将该句不可能之事由偷换为“在烦躁时取得成功，B则将其颠倒为“在健康不佳时感受快乐（等积极情绪）”， C则将其单向窄化为“摆脱挫折和失败（等消极情绪）。

Q15:What does the passage say about our mind and body?

答案：A。此题考查对整个篇章中心思想的理解，即身、心两者是紧密相连的，心理因素对健康有直接影响，故A正确。文中仅提及潜意识对身体健康的影响（/作用），但并未提及身体健康对潜意识的影响，故排除B和D。C在原文中无信息支持。

Recording One

【主题分类】篇章：技能与意识

【高级表达】

Paradox n.悖论

Mechanics n.机制

Tactical adj. 战术上的

Respectively adv. 各自地，分别地

Intelligence n. 聪明才智

【关键句型】

1. This has led some to say that the expert operates in a zone "beyond thought", in a state of flow. 这让一些人认为，行家运动或弹奏时不假思索，处于一种心流状态（全身心投入其中，自如发挥）。

2. Smart basketball players or skilled musicians need to pay close attention to the demands of high performance, to the challenges to be overcome.聪明的篮球运动员或是娴熟的音乐家需要密切关注的是对上佳表现的要求以及需要克服的挑战。

3. A nice video published online last month sheds light on expertise and the conscious mind. 上个月网上发布的一段不错的视频阐明了专业技能与有意识的头脑之间的关系。

4. It turns out that the less skilled pianist spends more time looking at her fingers than does the expert who, in contrast, is more likely to be looking at the sheet of music, or looking ahead at keys he's not yet playing. 结果表明，不够娴熟的钢琴演奏者会比行家花更多时间看手指，而后者与之相反，更可能看乐谱，或是看还没弹奏的琴键。

【听力原文】

Teachers and students alike have experienced the curious paradox that beginners, as a rule, tend to think too little about what they are doing because they think too much about what they are doing, lake, for example, people who are learning to play basketball or the piano. They have to give so much thought and attention to the low-level mechanics of handling the ball or fingering the keys or reading the music, that they are unable to give any thought to the thing that matters一 ——the game, or the music, respectively.

With experts, it's just the other way around. They're open to the tactical possibilities and the musical challenges precisely because they're freed, through skill, from the need to pay attention to the low-level details of how to play. Indeed, when the expert pays attention to the mechanics, this is liable to disrupt performance. .

This has led some to say that the expert operates in a zone "beyond thought", in a state of flow. But this is misleading. Expert performance is not beyond thought.

Smart basketball players or skilled musicians need to pay close attention to the demands of high performance, to the challenges to be overcome. What they don't need to do一what would be a distraction一is to have to think about where their fingers are, or how to control the ball while running. Ifs not mechanics, but the play itself, that absorbs the expert's intelligence.

A nice video published online last month sheds light on expertise and the conscious mind. The video reports a new study using an eye-tracking device.

It turns out that the less skilled pianist spends more time looking at her fingers than does the expert who, in contrast, is more likely to be looking at the sheet of music, or looking ahead at keys he's not yet playing. In general, the experts gaze was calmer and more stable.

But it's remarkable for all that, nonetheless. The eye tracker gives expert and learning performers a glimpse into what they do without thinking about it.

【答案解析】

Q16: What does the speaker say about beginners and expert pianists?

答案：B。B准确概括文章首两段的核心信息：初学者会过于注重初级技巧性细节信息，忽略对音乐本身的感知，而行家在演奏时不会拘泥于这些细节。A把reading the music（识谱）理解为“音乐鉴赏力”，不正确。C和D是干扰项，文中虽然有这些词语，但并非文中对两者的对比内容。

Q17: What do smart basketball players do according to the speaker?

答案：D。D同义改写第四段首句 Smart basketball players... pay close attention to the demands of high performance，故正确。其他项文中无信息支持。

Q18: What do we learn about the new study published in an online video?

答案：C。此题考查对例子所支撑的观点的理解，即新证据支撑了一个传统的观点。C同义改写了文中“It supports what we might almost think of as conventional wisdom”，故正确。A与“这一发现并不令人惊讶”相悖，且将段末提及的“认知科学” 偷换为“行为科学；B将“证实了传统观点”改为“采用了传统方法”；D所述内容文中没有提及。

Recording Two

【主题分类】篇章：瘦身，经济和文化

【高级表达】

Overwhelmed adj. 应接不暇；（感情上）被充溢

Advocate v. 宣扬，鼓吹

Diet n. 饮食（疗法）

Suppose v. 认为，假设

Circulation n. 循环

【关键句型】

1. I remember in Japan, people heading directly to the fruit section in the supermarket, when the banana diet was at its peak. 我记得在日本，香蕉节食法最热的时候，人们一进超市就直奔水果区。

2. Apart from what people eat, I've also seen many interesting slimming products. 除了吃的，我还见过许多有趣的瘦身产品。

3. Personally I do not believe in any of these slimming gadgets and I think I have a very different perspective when it comes to the definition of what is beautiful. 我个人完全不相信这些瘦身工具，而且提到“美”的定义，我想我有着完全不同的看法。

【听力原文】

Every summer when I top up my selection of summer outfits from the department stores, my eyes would nearly pop out of my head. I'm overwhelmed with a wide range of different slimming products each year. And more shockingly, these products are often advocated by very slim models.

Having lived in Asia for almost 10 years now, I've seen various dieting tips come and go. I remember in Japan, people heading directly to the fruit section in the supermarket, when the banana diet was at its peak. Then there was the black tea and the tea diet, followed by the soybean diet and the tomato juice diet. The list goes on and on.

Apart from what people eat, I've also seen many interesting slimming products. In Hong Kong, I've seen girls wrapping their whole body or both legs up with a special type of slimming tape which is supposed to help make them thinner. But it just reminded me of the roasted ham my mother usually puts on the dinner table at Christmas. Then there were the face slimming rollers that were said to improve your blood circulation and make your face smaller.

Personally I do not believe in any of these slimming gadgets and I think I have a very different perspective when it comes to the definition of what is beautiful. Asian women prefer to avoid the sun, because being pale or white is considered beautiful whereas a tanned complexion is considered much more beautiful and sexy in the West. It is most certainly shaped by a person's culture as well as how they were raised in their childhood.

As each summer season approaches, there's no escape from it. But it's not only women who are affected by this pressure to look good. Men aspired to be able to show off their 6 packs, or their v-shaped backs and there's a growing market of slimming pills aimed at men too.

I think no matter what diets we follow or what slimming products we obsess ourselves with, at the end of the day there's no magic trick to shape up for the summer. Eat in a balanced way and incorporate the right level of physical activity. For me, this still seems to be the best plan.

【答案解析】

Q19 : What overwhelms the speaker when she buys her summer outfits each year?

答案：D。D复现首段中的“每年去百货商店购置夏装时，五花八门的瘦身产品都会让我惊讶万分,the great variety of同义替换a wide range of。A提及了slim models, 但文中只提及“瘦身产品的推广模特往往极瘦”，并未指出“人们羡慕瘦模特。B）将原文人们狂热追求的对象“瘦身”偷换为“健康”。C将首段“瘦身产品（slimming products）”偷换为“高端产品（fancy products）”。

Q20 : What does the speaker think of girls wrapping their legs up with slimming tape?

答案：B。此题考查讲话人对这种瘦身方式的评价，B推理讲话人认为这种瘦身方法十分奇怪/不可思议，符合原文。A和C所描述的”充满活力、非常迷人”文中并未提及。 D）为干扰，答非所问。

Q21: What does the speaker think affects people's interpretation of beauty?

答案：A。A准确归纳了“It is most certainly shaped by a person's culture as well as how they were raised in their childhood”。C提及了文中出现的pressure一词,但文中指“维持良好外形的压力”，而非“同侪压力”。 B和D为干扰，均未在文中出现。

Recording There

【主题分类】篇章：皮肤与头发（生命科学）

【高级表达】

Attribute n. 特点

Evolve v. 进化

Fossil n. 化石

Plentifully adv. 足够地

Originate v. 起源于

【关键句型】

1. We can make a very good estimate from ...that ... 我们可以很好地从......中估计出来......

2. it allowed us to do sth. 它使得我们得以做某事

3. It really made it possible for us to do sth. 它真的让我们有可能做成某事

4. It's in these populations that we begin to see real changes in the genetic makeup of natural coloring. 正是在这些种群中我们开始看到天然色素基因组成的真正变化。

【听力原文】

Skin may seem like a superficial human attribute, but it's the first thing we notice about anyone we meet. As a zoologist focusing on the studies of apes and monkeys, I have been studying why humans evolved to become the naked ape, and why skin comes in so many different shades around the world.

We can make a very good estimate from the fossil record that humans probably evolved naked skin around a million and a half years ago, and meanwhile they mostly lost their coat of fur. Today we have a few patches of hair remaining on various parts of our bodies, but compared with apes and monkeys, we have very little. Basically, we turned our skin darker to serve as a natural sun protector in the place of the hair we lost.

We think we lost this hair because of the need to keep ourselves cool when we were moving around vigorously in a hot environment. We can’t really lose heat by breathing quickly and loudly like dogs. We have to do it by sweating. So we evolved the ability to sweat plentifully and lost most of our fur.

Most animals protect themselves from the sun with fur. What we did in our ancestry was to produce more permanent natural coloring in our skin cells.

This was really an important revolution in human history because it allowed us to continue to evolve in equatorial environments. It really made it possible for us to continue along the path toward modem humans in Africa.

For most of human history we all had dark skin. What we see today is the product of evolutionary events resulting from the dispersal of a few human populations out of Africa around 60,000 to 70,000 years ago.

Our species originated around 200,000 years ago and underwent tremendous diversification culturally, technologically, linguistically, artistically for 130, 000 years. After that, a few small populations left Africa to populate the rest of the world. These early ancestors of modem Eurasians dispersed into parts of the world that had more seasonal sunshine and much lower levels of sun radiation. It's in these populations that we begin to see real changes in the genetic makeup of natural coloring.

Today, skin color is evolving via new mixtures of people coming together and having children with new mixtures o£ skin color genes. We can see this in almost every large city worldwide. Not only the coloring genes, but lots of other genes are getting mixed up, too.

【答案解析】

Q22: What does the speaker mainly talk about?

答案：A。此题考察对整篇材料的主要内容的理解，整体来说，谈话人主要讨论的话题是关乎“毛发脱落及多种皮肤颜色之间的关联”，故A正确。B所言的“兴趣日增”在文中并无根据，且并非主要内容。C仅涵盖内容的一部分，忽视了谈话人对两者关系的大篇幅讨论。D所提及的“皮肤保护”在文中是为了介绍皮肤变深的原因一一是防晒，而非整篇的主要内容。

Q23: What had probably caused humans to lose most of their hair one and a half million years ago?

答案：B。B正确概括3段内容“人类脱落毛发的原因是，需要在炎热的环境中保持身体凉爽，为此人类进化出了大量排汗的能力，并脱掉了大部分皮毛”。A所述原因“需要节约能量”文中未提及。C）推导出“人类必须要轻松呼吸所以要脱毛"，但原文实指人无法通过呼吸方式来散热，故而需要脱去毛发来散热。D对in a hot environment断章取义，原文仅提及环境炎热，并未涉及气候变化。

Q24: What does the speaker say protected early humans from the sun?

答案：C。C正确概括第二段末句所提“我们把皮肤变深来防晒”以及第四段中“我们祖先免受晒的方式是在皮肤细胞中生成更持久的天然色素（即利用肤色防晒）”。A和B均在原文并未提及。D张冠李戴，“皮毛”是动物防晒方式，而非人类防晒方式。

Q25: What happened after humans migrated from Africa to other parts of the world?

答案：A。A正确概括第七段信息“少数人群离开非洲后，分散到了世界上季节性日照更多、太阳辐射强度更低的地域。正是在这些种群中，我们开始看到天然色素的基因构成的真正变化。” B所说的“社区稳步发展”在材料中并未提及。C把第8 段中having children with new mixtures（出现了更多有新型混合基因的孩子）错误解释为孩子之间互相交往。D所说的进化的速度在材料中并未提及。