外研版 (2019)选择性必修 第一册Unit 5 Revealing nature课文内容ppt课件

这是一份外研版 (2019)选择性必修 第一册Unit 5 Revealing nature课文内容ppt课件，共39页。PPT课件主要包含了Darwin，Predicting，In 1831 ，Time ，In 1859 ，Today ， Summary等内容，欢迎下载使用。
Understanding ideasA Jurney f DiscveryReading
At the end f the class, yu will be able t:1. find ut the main idea f the text and specific infrmatin abut the jurney f discvery: the time and what the main character did r thught and summarize what kind f persn he was accrding t sme details.
2. retell the passage simply.3. share pinins after learning the passage.
Observe the picture in Activity 1 n page 50 and think abut the questins: 1. What is the name f the tree?2. What is evlutin? 3. Can yu tell us the directin f evlutin?4. What species d yu recgnise in the picture?
evlutinary tree
5. What factrs can cause the prcess f evlutin?6. Can yu shw us a very famus persn related t evlutin?
Evlutin is nt nly a natural selectin prcess, but als the result f cmpetitin and cmmunicatin amng ppulatins
Predict the main idea f the text accrding t the picture and the title.
Read the passage t answer the questins.1. Whse jurney is it?2. What did he discver?3. What d the ntebk and the pen imply?
Reading fr general idea
1. Whse jurney is it?
Checking the answers
It is Darwin’s jurney (paragraph 2).
2. What did he discver?
He discvered hw different species came t exist (paragraph 5).
3. What d the ntebk and the pen imply?
The ntebk and the pen imply that he wrte a bk (paragraph 6).
S the text is abut Darwin’s jurney, his discvery and his achievement, On the Origin f Species.
Read the passage again and find ut the genre f the passage.
He left England n the ship, the Beagle, in 1831. When the Beagle reached the Galápags Island in 1835, Darwin saw a variety f new species.
It is a narrative in time rder.
Reading fr specific infrmatin
Read t find ut the detailed infrmatin abut the jurney: the time and what he did r thught.
He left England n the ship, the Beagle.
What he did:
After he had spent sme time in Suth America.
He studied the samples f plants and animals and asked himself the questin: hw did different species cme t exist? He nticed that sme species f animals were very similar t each ther.
In 1835 when he reached the Galápags Islands.
He nticed that there was a difference between the finchesn each f the islands. He suspected that the finches had evlved frm a cmmn ancestr. Over time, it had slwly evlved int many new species.
His bk, On the Origin f Species, was published, which immediately caused a strm.
On the Origin f Species is regarded as ne f the mst imprtant wrks ever written. It has changed ideas abut life n Earth frever.
Reading fr main idea
Chse the main idea f the passage n page 52.
1. Darwin’s interest in varius living things made him a gd naturalist.2. Darwin’s jurney n the Beagle inspired his Thery f Evlutin. 3. Darwin went n a jurney t cnfirm his thery that humans had evlved ver time.
Supprting infrmatin
Paragraph 2: The jurney gave him the chance t study varius living things in the natural envirnments. As he studied these, he asked himself the questin: hw did different species cme t exist?
Paragraph 3: At that time Darwin began t think differently. It was just an idea, but enugh t inspire Darwin t lk fr mre evidence. Paragraph 4: Darwin nticed that there was a difference between the finches n each f the islands. It seemed that their beaks had evlved accrding t what fd was available n that particular island.
Paragraph 5: That was the answer t hw new species f plants and animals came t exist: they evlved frm earlier ancestrs. Paragraph 6: It was a cmpletely new idea—a thery f evlutin. Darwin explained this thery in his bk,On the Origin f Species. It was nt published until 1859.
Paragraph 7: On the Origin f Species is regarded as ne f the mst imprtant wrks ever written. It has changed ideas abut life n Earth frever.S the main idea f the passage is the secnd ne—Darwin’s jurney n the Beagle inspired his Thery f Evlutin.
Number the puzzle pieces in rder n page 52. Organise the infrmatin frm the passage and cmplete them.
The rder is:14523.
The answers t the blanks:
1. On his jurneyDarwin studied varius living things in their natural envirnments and samples f the plants and animals he had cllected. He nticed that sme species f animals were very similar t each ther.
2. Generate ideasDarwin asked the questins:• Hw did different species cme t exist?• Maybe animals evlved as they adapted t their changing envirnments?
3. Lk fr mre evidenceOn the Galápags Islands:• He nticed that there was a difference between the finches n each f the islands.• It seemed the beaks had evlved accrding t what fd was available n that particular island.
4. Develp ideasDarwin suspected that the finches had evlved frm a cmmn ancestr, which had arrived n the islands a lng time befre and it had slwly evlved int many new species.5. Prpse a theryThe Thery f Evlutin : living things, including humans, had evlved frm lwer frms f life.
Retell the text accrding t the develpment f the jurney r Activity 4 n P52. Yu can add mre infrmatin frm the passage if necessary.
Retelling
Think abut the fllwing questins and share yur pinins.1) Why were many peple “shcked” by Darwin’s thery?2) What kind f persn was Darwin?
Thinking and Sharing
At that time, peple believed that all species had appeared n Earth at the same time and had nt changed since, but Darwin’s thery prpsed that living things, including humans, had evlved frm lwer frms f life, which, as a result, shcked many peple.
1) Why were many peple “shcked” by Darwin’s thery?
Darwin was a determined man. He had strng curisity and interest in science and was gd at thinking and making discveries. These gd qualities helped Darwin make such a lng jurney frm 1831 t 1859 t pursue his scientific explratin and finally published the great bk,On the Origin f Species.
2) What kind f persn was Darwin?
The passage is a narrative arranged in time rder. The main character Darwin made a lng jurney, during which he finally fund hw different species came t exist. We als knw Darwin was a determined man. He had strng curisity and interest in science and was gd at thinking and making discveries. S we shuld learn frm his spirit f devtin when pursuing what is right.