Unit 5 Part 1 Starting out & Understanding ideas☆(同步精炼)（PPT同步课件）-【学而思】2026-2027学年高一英语必修第一册（外研版）

Unit 5　Into the wild Part 1　Starting out & Understanding ideas 基础过关练 第1讲　描述运动的基本概念 Ⅰ.单词拼写 1.[2023全国乙]The _____________(位置) enabled us to look over the lake with the sunset in the back- ground. 2.By clicking on the “donate” button, you can choose to contribute to any of these ____________(慈 善机构). 3.[2026广东广州期中] To address this issue, the researchers suggested several ____________(解决方法). 4.Every autumn, the monarch butterflies ____________ to warmer regions to escape the cold weather. 5.[易错题][2026江苏省苏州中学月考] It's high time we considered the problem seriously and _________ (寻求) effective measures. 　sought     　migrate     　solutions     　charities     　position     第1讲　描述运动的基本概念 知识拓展 　　seek为不规则动词,其过去式和过去分词均为sought。类似动词可见下表: 原形 过去式 过去分词 意义 bring brought brought 带来 buy bought bought 买 fight fought fought 打架 think thought thought 思考 第1讲　描述运动的基本概念 Ⅱ.单句语法填空 1.[高考变式题]It is inspiring to know that the person that we had lost track of _____________ (eventual) turned up. 解析　考查副词。句意:得知我们失去联系的那个人终于出现了,真是令人鼓舞。本空作状语,应用副 词形式, 故填eventually。 　eventually     第1讲　描述运动的基本概念 2.The advances in modern biomedical technology can significantly improve the patients' chance of _____________(survive). 解析　考查名词。句意:现代生物医学技术的进步可以显著提高病人生存的可能性。根据空前介词of 可知,本空应用名词形式。chance of survival意为“生存的可能性”。 类比启发 　　动词词尾去e加-al→名词(一般是抽象名词):arrive→arrival n.到达; approve→approval n.赞成; pro- pose→proposal n.提议; remove→removal n.移动; refuse→refusal n.拒绝,回绝 　survival     第1讲　描述运动的基本概念 3.[2026陕西西安期中] In Kenya alone, 7.5 million farmers lose up to 50% of their harvest because of pests and diseases _____________(annual). 解析　考查副词。句意:仅在肯尼亚,每年就有750万农民因病虫害而损失多达50%的收成。本空作状 语,应用副词形式, 故填annually。 　annually     第1讲　描述运动的基本概念 4.It has been proved that social media can have a negative effect ______ our sleep if we use it before bed, and setting a strict bedtime schedule is ______________(effect) in improving sleep quality. 解析　考查介词和形容词。句意:事实证明,如果我们在睡前使用社交媒体,它会对我们的睡眠产生负 面影响,制订严格的就寝时间表可以有效提高睡眠质量。have an effect on意为“对……有影响”,故第 一空填on;第二空作表语,意为“有效的”,故填effective。 　effective     on     第1讲　描述运动的基本概念 5.We were ___________ to find a rainbow in the sky after the rain, which was an ____________sight and the beauty of it filled us with ______________. (amaze) 解析　考查形容词和名词。句意:雨后,我们惊奇地发现天空中有一道彩虹,这是一幅令人惊叹的景象, 它的美丽让我们充满了惊奇。第一空作表语,且主语为指人的代词We,故应用形容词amazed,意为“吃 惊的”;第二空修饰名词sight,故应用形容词amazing,意为“令人惊叹的”;根据第三空前的介词with可 知,本空应用名词形式,故填amazement。 　amazement     　amazing     　amazed     第1讲　描述运动的基本概念 6. [2025全国二] Determined ____________(turn) her life around, Ms Donohue began to work out and follow a healthy lifestyle. 解析　考查不定式。句意:Donohue女士决心扭转自己的人生,于是开始锻炼并遵循健康的生活方式。 (be) determined to do sth.意为“决心做某事”,本空应用不定式形式,故填to turn。 　to turn     第1讲　描述运动的基本概念 7.[易错题][高考情境题]After surviving two world wars, the century-old bookstore, a perfect place for book lovers and poets, which used to be known for its comfortable reading corners, __________________(destroy) by a fire last month, losing thousands of rare first editions. 解析　考查动词的时态、语态和主谓一致。句意:在挺过两次世界大战后,这家百年书店 —— 一个为 书迷和诗人打造的理想去处,过去常以其舒适的阅读角而闻名 ——上个月在一场火灾中被烧毁,损失 了数千本珍贵的初版书。分析句子可知,which引导非限制性定语从句,主句的主干为“the century-old bookstore ______by a fire”,故设空处为主句的谓语。根据时间状语 last month 可知应用一般过去时; 主句主语 the century-old bookstore 和动词 destroy 之间是被动关系,应用被动语态;主语表单数,故填was destroyed。 　was destroyed     　　     第1讲　描述运动的基本概念 易错归因 　　①忽略主谓间隔:句子中插入了多个修饰成分,包括同位语a perfect place for book lovers and poets, 非限制性定语从句 which used to be known for its comfortable reading corners。这些成分割裂了主语和 谓语,导致学生难以快速定位核心的“主谓”逻辑,进而出现语法判断失误。 　　②动词拼写错误:误将destroy的过去分词错写为destroied。注意:动词原形结尾为“辅音字母-y” 时才变y为 i,再加-ed,如:carry→carried;cry→cried;hurry→hurried;study→studied。而destroy为“元音字 母o+-y”结尾,应直接加-ed。 第1讲　描述运动的基本概念 Ⅲ.完成句子 1.在我看来,该是我们采取措施保护野生动物的时候了。(measure) As far as I am concerned, it's high time that ______ ________ ____________ _______ _________ the wildlife. 2.砍伐树木和挖草会导致沙漠和沙尘暴增加。(cut) __________ _________ _________ and digging up grass can cause deserts and sandstorms to increase. 3.艾丽斯走出她上班的大楼,松了口气。(关系副词引导的定语从句) Alice stepped out of the tall building _________ _______ __________ and breathed a sigh of relief.(读后续 写—动作描写) 　worked     　she     　where     　trees     　down     　Cutting     　protect     　to     　measures     　took     　we     第1讲　描述运动的基本概念 4.我越走近我哥哥的家,我的心因紧张就跳得越快。(the+比较级...,the+比较级...) ________ _________ I got to my brother's house, _______ ________my heart beat with nervousness.(读后续 写—心理描写) 5.The girl who was frightened by the thunderstorm hid under the bed.(句型转换:分词作定语) →The girl ____________ _______ _______ _______________ hid under the bed. 　thunderstorm     　the     　by     　frightened     　faster     　the     　closer     　The     第1讲　描述运动的基本概念 能力提升练 第1讲　描述运动的基本概念 Ⅰ.课文语法填空 　　Many animals make an annual 　1　 (migrate) to find food, seek a partner, or in search of warmer weather at certain times of the year. Every autumn, 　2　 (million) of North American monarch butterflies start such a journey. They travel about 4,000 kilometres south to California or Mexico, 　3　 people didn't know how they did this until recently. 　　Some scientists have found out that these insects can know the time of day and they use their eyes 　4 　 (measure) the position of the sun. The information permits 　5　 (they) to decide their way to go. Even- tually, they manage to arrive in the places where they spend the winter. People are　6　 (amaze) at their mysterious ability and find the solution to the mystery when people find that their number 　7　 (crash) by as much as 90 per cent during the past few years. Unfortunately, the main 第1讲　描述运动的基本概念 reason why the number of them is dropping is human activity. People are destroying the places 　8　 they live in. They cut down trees and use chemicals which are bad for the plants that monarch caterpillars eat. 　　Now people begin to be aware 　9　 this creature and work together to protect them. People hope that the number of them will rise again. The 　10　 (much) we learn about them, the more likely they are to sur- vive. 1.____________    2.___________    3._______    4._____________    5._________ 6.___________    7.____________    8._____________    9._______    10._________ 　more     　of     　that/which     　has crashed     　amazed     　them     　to measure     　but     　millions     　migration     第1讲　描述运动的基本概念 解析     1.migration　考查名词。由空前的不定冠词an和形容词annual可知,此处应用名词。 2.millions　考查数词。millions of是固定短语,意为“数百万的……”,修饰后面的名词短语North American monarch butterflies。 方法归纳 　　hundred、thousand、million、billion等数词前没有具体的数字时,常用复数形式,并与of连用。 3.but　考查连词。设空处前后为两个完整的句子,故此处应用连词连接。上文“它们向南飞行大约四 千公里到加利福尼亚州或墨西哥”与下文“直到最近人们才知道它们是如何做到的”是转折关系,故 用表示转折意义的连词but。 第1讲　描述运动的基本概念 4.to measure　考查非谓语动词。use sth. to do sth.意为“用某物做某事”,其中的不定式是目的状语,此 处表示“用它们的眼睛测量太阳的位置”。 5.them　考查代词。设空处是动词permits的宾语,应用人称代词的宾格形式。 6.amazed　考查形容词。设空处表示人的感受,应用以-ed结尾的形容词;be amazed at是固定短语,意为 “对……感到惊讶”。 7.has crashed　考查时态和主谓一致。设空处在that引导的宾语从句中作谓语。during the past few years是现在完成时的标志性时间状语,number意为“数量”,是第三人称单数,故填has crashed。 8.that/which　考查定语从句。设空处无提示词,空前为名词places,空后的句子缺少宾语,故推测此处为 定语从句。设空处引导该从句,并作从句中介词in的宾语,先行词places指物,故用that或which。 易错归因 　　本题易错填where。先行词places虽然指地点,但定语从句的引导词应代替先行词在从句中作相应 成分,而where是关系副词,不能在从句中作in的宾语。 第1讲　描述运动的基本概念 9.of　考查介词。be aware of是固定短语,意为“意识到”。虽然be aware后也可加that引导的从句,但 本空后的部分this creature不是从句。故填of。 10.more　考查比较级。“the+比较级...,the+比较级...”是固定句型,意为“越……,(就)越……”。故 填more。 第1讲　描述运动的基本概念 Ⅱ.语法填空   [2026山东泰安期末] 　　A new study shows that polar bears are struggling to find enough food on the decreasing(减少) Arctic ice. 　　　1　(record) their feeding behavior, scientists fitted nine polar bears with GPS collars(项圈). They al- so measured the bears' energy use. The results showed that most of the animals had 　2　 (difficult) getting enough food to meet their energy needs. 　　“We found that polar bears actually have much higher energy demands than predicted. They need to catch more seals,” said Anthony Pagano, a US wildlife biologist 　3　(lead) the study. “The Arctic sea 第1讲　描述运动的基本概念 ice is decreasing 　4　 a rate of about 14% every ten years as 　5　 result of global warming, which is like- ly to reduce polar bears' access(接近) to seals. In the past centuries, polar bears 　6　(hunt) seals on sea ice, but when the ice is gone, they now need to travel 　7　 (far) and consume more energy than before to find seals.” 　　“Ice loss will eventually cause polar bears to die out in the wild unless stronger methods 　8　 (take). Since it is human activities 　9　 result in global warming, we 　10　(probable) need to take action at once,” Pagano added. 1.____________    2.____________    3.__________    4.______    5.______ 6.______________    7.________________    8.___________    9._______    10._____________ 　probably     　that     　are taken     　farther/further     　have hunted     　a     　at     　leading     　difficulty     　To record     第1讲　描述运动的基本概念 语篇解读　    本文是一篇说明文。一项新的研究表明,北极熊因北极冰层减少而难以找到足够的食 物。 【高频词汇】    1.struggle v.努力;争取    2.demand n.需求;所需之物    3.consume v.消耗;耗费    4.unless conj.除非    5.result in导致    6.take action采取行动 【熟词生义】　fit 熟义:v.适合　生义:v.安置;安装 1.To record　考查动词不定式。分析句子可知,设空处表示目的,应用动词不定式作目的状语,故填To record。 2.difficulty　考查名词。设空处作had的宾语,应用名词形式。have difficulty (in) doing sth.意为“做某 事有困难”,为固定用法,故填difficulty。 3.leading　考查动词的-ing形式。设空处需用非谓语动词作后置定语,修饰名词短语 a US wildlife biol- ogist, lead 和 a US wildlife biologist之间为逻辑上的主动关系,需用动词的-ing形式,故填 leading。 第1讲　描述运动的基本概念 4.at　考查介词。at a rate of...意为“以……的速度”,为固定短语,故填at。 5.a　考查冠词。as a result of意为“由于;因为”,为固定搭配,故填a。 6.have hunted　考查动词的时态和主谓一致。分析句子可知,设空处作谓语,根据时间状语“In the past centuries”可知应用现在完成时;主语为复数名词,助动词应用have。故填have hunted。 7.farther/further　考查副词的比较级。根据设空处后的“than before”可知,此处表示“它们现在需要 比以前走得更远”,应用far的比较级farther或further。 知识拓展 　　far的比较级有两个,分别是farther和further。farther指“(时间或空间上)更远,较远”,表示具体的距 离更远;而further既可表示具体的距离更远,又可表示抽象意义上的“进一步;在更大程度上;在更大范 围内”。本题表示具体距离更远,所以两者皆可使用。 第1讲　描述运动的基本概念 8.are taken　考查动词的时态、语态和主谓一致。分析句子可知,设空处在unless引导的条件状语从句 中作谓语,主句为一般将来时,从句应用一般现在时;从句主语methods与提示词take之间为被动关系,应 用被动语态;methods为复数名词,be动词应用are,故填are taken。 9.that　考查强调句型。分析句子可知,Since引导原因状语从句,若将从句中的it is和设空处去掉,从句 结构完整,不缺成分,由此可知此处为强调句型。强调句型的基本结构为“It is/was+被强调部分+ that/ who+句子其余部分”,此处强调human activities,故填that。 10.probably　考查副词。设空处作状语,应用副词,故填probably。 第1讲　描述运动的基本概念 Ⅲ.阅读理解 A   [2025湖南长沙市明德中学期中] 　　Tall, long-necked giraffes are famous for their spots which are believed to help the animals hide from their enemies. Just like no two humans have the same fingerprints, each giraffe has its own special pattern of spots. However, a Tennessee zoo made the headlines recently after it welcomed one of the world's most un- common giraffes. 　　On July 31, a baby giraffe was born at Brights Zoo with light brown fur, which is a reticulated(网状的) giraffe, one of the four different kinds of giraffes. Unlike most giraffes, she was born without spots, a unique 第1讲　描述运动的基本概念 feature of the reticulated giraffe. At six feet tall, this baby giraffe is growing well under her mother's care. She shows typical baby giraffe behavior. 　　Experts said the young giraffe was the only single-colored reticulated giraffe around the planet. The last time this happened was in Japan in 1972. A giraffe's pattern of spots is created when the animal is still growing inside its mother. That means that this giraffe will never have spots. 　　“The new giraffe might not have survived if she had been born in the wild. Being single-colored, she may not be able to hide very well,” said Mr. David Bright, who runs the zoo. “She will easily be a key target for poachers(偷猎者) because she's so unusual.” 　　Brights Zoo stressed that reticulated giraffes had already become _________. In 2018, they were official- ly listed as “threatened”. Thirty-five years ago, there were 36,000 reticulated giraffes. Now, the number has been cut by more than 50%. Only about 16,000 reticulated giraffes remain. imperiled 第1讲　描述运动的基本概念 　　This brown giraffe's birth is not only a rare and amazing event, but also an opportunity to raise awareness of the challenges faced by giraffes in the wild. By supporting efforts like this, we can contribute to the conservation of these large creatures and ensure their survival for generations to come. 语篇解读　    本文是一篇新闻报道。文章主要报道了田纳西州的一家动物园迎来了一只世界上极为 罕见的长颈鹿,这只长颈鹿出生的时候身上没有斑点。 第1讲　描述运动的基本概念 1.What do we know about the spots of giraffes? A.They help protect giraffes. B.They are the same pattern. C.They look like giraffes' footprints. D.They appear on giraffes occasionally. 1.A　细节理解题。根据第一段第一句“Tall, long-necked giraffes are famous for their spots which are believed to help the animals hide from their enemies.”可知,长颈鹿以其斑点而闻名,人们认为这些斑点 可以帮助它们躲避敌人。因此,长颈鹿的斑点有助于保护长颈鹿,故选A。 第1讲　描述运动的基本概念 2.What makes the young giraffe born at Brights Zoo special? A.Its extremely large size.　　B.Its light brown fur. C.Its unusual eating habit.　　D.Its absence of spots. 2.D　细节理解题。根据第二段第二句“Unlike most giraffes, she was born without spots, a unique feature of the reticulated giraffe.”可知,这只在布莱特动物园出生的小长颈鹿的特别之处是没有斑点,故 选D。 第1讲　描述运动的基本概念 3.What does the underlined word “imperiled” mean in paragraph 5? A.Recognized.　　B.Endangered. C.Doubled.　　D.Balanced. 3.B　词义猜测题。根据画线词后文可知,2018年,它们被正式列为“受威胁”,35年前有36,000只网 纹长颈鹿,现在,这个数字已经减少了超过50%,目前只剩下大约16,000只网纹长颈鹿。因此,网纹长颈鹿 数量不多了,说明濒临灭绝了。故画线词的意思是“濒临灭绝的”。故选B。 第1讲　描述运动的基本概念 4.Which word can best describe the birth of the young giraffe? A.Awkward.　　B.Worrying. C.Meaningful.　　D.Foreseeable. 4.C　推理判断题。根据最后一段可知,这只棕色长颈鹿的出生不仅是一个罕见而有趣的事件,也是 一个提高人们对野生长颈鹿面临的挑战的意识的机会。通过支持这样的努力,我们可以为保护这些大 型生物做出贡献。因此,小长颈鹿的诞生是有意义的。故选C。 第1讲　描述运动的基本概念 【高频词汇】    1.spot n.斑点    2.hide from躲避 3.make the headlines成为头条新闻     4.typical adj.典型的    5.target n.(攻击的)目标,对象    6.be listed as被列为    7.conservation n.保护     8.ensure v.确保 第1讲　描述运动的基本概念 B   [2026山东省实验中学期中] 　　With the changing climate across the world, bird species that live in tropical (热带的) areas —specifi- cally in the remote, deep parts of Brazil's Amazon rainforest—are slowly getting smaller in size. It has been found that 80 tropical bird species have experienced a drop in body mass (体重) over the past 40 years. However, why the birds changed in that way was unknown. Therefore, researchers decided to study the records of 15,000 birds living in a rainforest within a few hours' drive from Manaus in Brazil. 　　The average temperature of the birds' habitat is 1℃ warmer in the wet season and 1.65℃ warmer in the dry season, compared with that 40 years ago. What's more, there are 13% more rainfalls in the wet season 第1讲　描述运动的基本概念 and 15% less in the dry season. The birds have lost body mass more sharply after extremely dry or wet sea- sons. This could be a short-term response to changes in their environment, such as a lack of rainfall causing a drop in the number of insects that the birds feed on. 　　“Mass is a generally good indication of body condition in birds,” says Vitek Jirinec at the Integral E- cology Research Center in California, who led the study. “If they're simply not getting enough to eat, you'd expect them to lose weight.” 　　Birds of the same species are generally larger in colder areas. The leading theory is that their smaller surface-area-to-volume ratio (表面积和体积比) allows them to better save heat. “The opposite would help smaller species in hot climates to cool and could explain why birds are getting smaller as the climate warms,” says Jirinec. 　　“The physical changes during just four decades show why stopping destroying trees alone won't 第1讲　描述运动的基本概念 prevent the ongoing extinctions of animal species across the world,” says Camila Gomez, a scientist who studies evolutionary changes in birds. “This study also shows how human-caused changes in climate are contributing to the observed population decline in tropical birds,” says Gomez. 语篇解读　    本文是一篇说明文。研究发现,过去40年亚马逊热带雨林中80种热带鸟类的体重普遍下 降,这可能与气候变暖和降水变化有关;这一变化说明气候变化正加剧物种生存危机,单靠保护森林已 不足够。 第1讲　描述运动的基本概念 5.According to the first paragraph, what was the purpose of the study? A.To record the changes in birds' body mass.　　B.To prepare them for their future migration. C.To find the reason for their weight change.　　D.To find a way to save the Amazon rainforest. 5.C　细节理解题。根据第一段中“However, why the birds changed in that way was unknown. Therefore, researchers decided to study the records of 15,000 birds...”可知,研究人员因不清楚热带 鸟类体重下降的原因才开展这项研究。由此可知,研究的目的是找出鸟类体重变化的缘由。故选C。 第1讲　描述运动的基本概念 6.In the study, what habitat changes do researchers find? A.High temperatures are rare.　　B.Weather gets more extreme. C.Wet seasons are getting drier.　　D.Rainfall increases in dry seasons. 6.B　推理判断题。根据第二段前两句可知,鸟类栖息地在雨季和旱季的气温均升高,同时雨季降雨 增多、旱季降雨减少,呈现出“雨季更湿、旱季更干”的特征。由此可推断,鸟类栖息地的气候模式 变得更为极端。故选B。 第1讲　描述运动的基本概念 7.How does Jirinec see the fact that birds are losing weight? A.It helps them lose extra heat.　　B.It makes them feel less cold. C.It keeps them in good shape.　　D.It enables them to hide easily. 7.A　推理判断题。根据第四段前两句可知,在较寒冷的地区,较小的体表面积与体积比有助于鸟类 更好地保存热量;根据Jirinec说的话“The opposite would help smaller species in hot climates to cool” 可推断,Jirinec认为在气候炎热时,鸟类体重下降、体型变小能帮助它们散发多余热量。故选A。 第1讲　描述运动的基本概念 8.What might be the best title for the text? A.Global Warming Is Threatening the Habits of Birds B.Tropical Birds' Population Is Experiencing a Sharp Drop C.Tropical Birds Are Struggling to Survive Dry Seasons D.Climate Change Is Causing Some Birds to Lose Weight 第1讲　描述运动的基本概念 8.D　主旨大意题。 Para. 1 指出现象 热带鸟类体型变小,研究旨在探究原因。 Para. 2 介绍研究发现 栖息地气候变暖且雨季和旱季的降雨量变得更极端,鸟类在经历极端季节后体重下降更明显。 Para. 3— Para. 4 分析原因 体重下降可能与食物短缺有关;体型变小有利于在变暖的气候中散热。 Para. 5 点明深 层影响 仅停止毁林不足以防止物种灭绝,气候变化已导致鸟类数量下降。综上可知,文章围绕“气候变化导致热带鸟类体重下降、体型变小”这一现象展开。D项“气候变化导致一些鸟类体重下降”准确概括主旨,且与研究发 现直接对应,可以作为本文最佳标题。故选D。 第1讲　描述运动的基本概念 【高频词汇】    1.extremely adv.极其;非常    2.a response to 对……的反应    3.lose weight 减重,减肥     4.ongoing adj.持续存在的;正在进行的    5.extinction n.灭绝;消亡 6.contribute to 促成;导致     7.keep...in good shape 使……保持健康状态 【差距词汇】    1.indication n.迹象;标示    2.evolutionary adj.进化的;演变的 第1讲　描述运动的基本概念 第1讲　描述运动的基本概念 $