（2021新外研版）高中英语选择性必修四 Unit 5 Period One Starting out & Understanding ideas—Comprehending ppt课件.pptx

1、Into the unknown Unit 5 单 元 主 题 语 境 Nature is full of mysteries,even unexplained mysteries.In the face of mystery,we are excited,curious,eager to know everything. 大自然充满了奥秘，甚至是一些难解之谜。面对神秘，我们兴奋，大自然充满了奥秘，甚至是一些难解之谜。面对神秘，我们兴奋， 我们好奇，我们想探我们好奇，我们想探 知一切。知一切。 人与自然大自然的难解之谜 话题导入话题导入 One of the greatest mysterie

2、s on the Earth is the statues(雕像雕像) standing on Easter Island1.Easter Island is one of the most remote islands on the Earth.It is in the southern Pacific Ocean,2,300 miles west of the coast of Chile and 2,500 miles southeast of Tahiti. Who built these statues and why and how did they get there? Nobo

3、dy knows the answer for sure，but many are trying to find it out.It has even been suggested that space aliens may have played a role regarding the statues.There are also other theories about them. One theory suggests that Easter Island was occupied by Polynesian sailors， who traveled thousands of mil

4、es in their canoes(独木舟独木舟)，guided by the stars2 and the birds making flights out to look for food.They first arrived on the island in 400 AD.However，they were trapped by the current(洋流洋流). The Easter Islanders had their own system of writing，different from any other in the world.No other Pacific Isl

5、anders knew how to write.Who taught the Easter Islanders how to write，or did they develop their own system? In brief，Easter Island continues to be one of the worlds greatest unexplained mysteries. 靓句运用于写作 1.We will play against the team coming from Hong-xing High School. (2019全国全国，书面表达，书面表达) 2.I wou

6、ld be happy to see you at the welcome ceremony，dressed in traditional Chinese dress.(2019江苏，书面表达江苏，书面表达) 语篇理解 精读演练 萃取文本精华 读前清障 识记单词 快速顺畅阅读 内容索引内容索引 Period OneStarting out & Understanding ideasComprehending 读 前 清 障识记单词 快速顺畅阅读 品品句猜词句猜词请请预读下列课文原句，并猜测句中加颜色词汇的意思。预读下列课文原句，并猜测句中加颜色词汇的意思。 1.Intrigued by May

7、a civilisation from a very young age,15-year-old Canadian William Gadoury thought he had made an incredible discovery from his study of ancient star charts. _ 2.Based on this，he believed he had spotted an unknown Maya city buried deep in the jungle. _ 3.The fact that Maya society was technologically

8、 primitive makes its achievements all the more incredible and mysterious. _ 4.But the greatest mystery of all is what caused the Maya to abandon most of their great cities. _ 激起激起的兴趣的兴趣文明文明 将将埋在下面埋在下面 神秘的神秘的 离弃，逃离离弃，逃离 5.Although his theory has been dismissed by scholars，it shows how powerful the se

9、crets of Ancient Maya civilisation are among people. _ 6.Some research seems to indicate that the Maya people themselves may have played a part in their downfall. _ 否定，拒绝考虑否定，拒绝考虑 返 回 衰败衰败 语 篇 理 解精读演练 萃取文本精华 Step 1Fast-reading 1.Whats the main idea of the passage? A.William Gadourys new discovery ab

10、out the Maya civilisation. B.A true writing system that the Maya people had created. C.Some possible reasons why the Maya civilisation fell down. D.How the Maya civilisation was formed. 2.Read the passage and match the main idea of each paragraph. Para.1 A.Why Maya civilisation collapsed. Para.2 B.A

11、 Canadian boy spotted an unknown Maya city buried deep in the jungle. Para.3 C.We should learn from the downfall of the Maya civilisation. Paras.45 D.What caused the Maya to abandon their cities. Para.6 E.Maya civilisation has been surrounded by mystery. Step 2Careful-reading Read the passage carefu

12、lly and choose the best answer. 1.Which of the following is TRUE about William Gadoury? A.He found that the Maya created a true writing system. B.He thought he had discovered an unknown city in the jungle. C.He has a good command of the Maya characters. D.He made a discovery about how the Maya built

13、 these impressive temples and palaces. 2.What caused the downfall of the Maya civilisation? A.Fighting between cities. B.A serious disease. C.A natural disaster. D.Still unknown. 3.What do people know about the Maya writing system? A.It is similar to the present writing system that Americans use tod

14、ay. B.It contained more than 8,000 words and signs. C.It is very complicated and hard to interpret. D.Some words were used to represent animals，objects and syllables. 4.When did Maya civilisation reach its highest level? A.Before 700 BC. B.By 700 AD. C.In the early 16th century. D.At around 900 AD.

15、5.What achievement of the Maya makes us amazed? A.They had a good knowledge of mathematics and astronomy. B.They carved some beautiful paintings on stones. C.They built some pyramids using only animal power. D.They created the Maya calendar which was accurate to within 30 minutes. Step 3Post-reading

16、 After reading the passage，please fill in the following blanks. The Maya created great civilisation.They built many impressive temples and palaces without the use of modern 1. (equip).They also invented their own calendar 2. was accurate to within 30 seconds per year,3._ (use) their understanding of

17、 mathematics and astronomy.Their writing system was so complicated 4. no one has been able to interpret it completely. equipment whichusing that 5. ，only after a couple of generations，the Maya civilisation 6. (disappear) within the deep jungle，leaving 7. (vary) mysteries for later people 8. (solve).

18、Some scientists believe that the droughts were the main reason why it collapsed.The droughts led to food 9. (shortage)，conflicts and 10. (ultimate)，the downfall of the cities. shortages However disappeared various to solve ultimately Step 4Sentence-learning 1.Intrigued by Maya civilisation from a ve

19、ry young age,15-year-old Canadian William Gadoury thought he had made an incredible discovery from his study of ancient star charts. 句式分析句式分析该句为复合句。该句为复合句。Intrigued by Maya civilisation from a very young age在句中在句中作作 ，intrigued 与句子主语与句子主语15-year-old Canadian William Gadoury为为 关系关系，所以用过去分词形式；，所以用过去分词形

20、式；he had made an incredible discovery from his study of ancient star charts为省略了为省略了that的的_ 从句。从句。 自主翻译自主翻译 _ _ 状语状语 动宾动宾 宾语宾语 从从很小的时候就对玛雅文明感兴趣，很小的时候就对玛雅文明感兴趣，15岁的加拿大男孩岁的加拿大男孩 William Gadoury认为自己从对古代星象图的研究中有了一个惊人的发现。认为自己从对古代星象图的研究中有了一个惊人的发现。 2.What is most extraordinary about these complex structures

21、 is how they were built without the use of wheels，metal tools or even animal power. 句式分析句式分析该句为一个主系表结构的简单句。名词性从句该句为一个主系表结构的简单句。名词性从句What is most extraordinary about these complex structures在句中在句中作作 ；how引导的部分引导的部分 为表语为表语。 自主翻译自主翻译 _ _ 主语主语 那些那些复杂的建筑结构最不同寻常的是，它们是怎样在没有轮滑、复杂的建筑结构最不同寻常的是，它们是怎样在没有轮滑、 金属工具

22、甚至畜力的情况下建造的。金属工具甚至畜力的情况下建造的。 3.It contained more than 800 characters，with some signs representing animals，people and objects and others representing syllables. 句式分析句式分析该句为一个复合句。该句为一个复合句。with some signs representing animals， people and objects and others representing syllables是是with的复合结构的复合结构作作 ， 修饰修

23、饰characters；signs 与与represent之间存在逻辑上之间存在逻辑上的的 关系关系，所以用动词，所以用动词 的的-ing形式形式。 自主翻译自主翻译 _ _ 定语定语 主谓主谓 它它含有含有800多个字，还有一些符号代表动物、人、物体等，其多个字，还有一些符号代表动物、人、物体等，其 他符号代表音节。他符号代表音节。 4.The fact that Maya society was technologically primitive makes its achievements all the more incredible and mysterious. 句式分析句式分析该

24、句为一个复合句。该句为一个复合句。The fact是主语，是主语，Maya society was technologically primitive为为 ，解释说明解释说明fact 的内容；的内容；its achievements为宾语，两个形容词为宾语，两个形容词incredible 和和mysterious为为 。 自主翻译自主翻译 _ _ 同位语从句同位语从句 宾语补足语宾语补足语 事实上事实上，玛雅社会在技术上是比较原始的，这使得它的这些成，玛雅社会在技术上是比较原始的，这使得它的这些成 就更加难以置信，更加神秘。就更加难以置信，更加神秘。 5.Its once-great citi

25、es fell into ruin，leaving various mysteries for later people to solve. 句式分析句式分析该句为一个复合句。该句为一个复合句。Its once-great cities fell into ruin为主句，为主句， leaving various mysteries for later people to solve为现在分词短语在句中为现在分词短语在句中作作_ ，表示一表示一种种 的的结果结果。 自主翻译自主翻译 _ _ 结结 返 回 果状语果状语自然而然自然而然 它它曾经的大城市荒废了，留下了各种各样的谜团等待后人去曾经的大城市荒废了，留下了各种各样的谜团等待后人去 解解决。决。 本课结束