小学信息技术粤教版第四册下册二、设计教学设计及反思

这是一份小学信息技术粤教版第四册下册二、设计教学设计及反思，共10页。

主题语境：人与社会主题群：科学与技术
子主题：科学家与科学研究
语篇类型：视频、文字、习题
文本分析：
[What]本节课分两部分：第一部分为 Vide time，生动地阐释了科学探索的重要性。本节课的第二部分为Assessing Yur Prgress，围绕科学家的主要工作设置填空，练习重要词汇；在情境中练习本单元语法项目“表语从句”的用法；最后对本单元进行总的反思和评价
[Why]提高学生使用英语表达自己对科学探索重要性的观点及培养创造性思维的能力。
[Hw]教学材料将英语语用目标和本单元的主题语境有机结合起来，让学生在对主题语境的探究过程中提高英语语用能力，深入对主题的探究。
课时目标
1.通过观看视频，了解科学探索的重要性。
2.讨论对科技新产品的观点和态度。
3.阅读科学家日常工作的相关信息，复习本单元的词汇和语法项目“表语从句”的用法。
重点难点
重点：本单元重点词汇和语法的恰当使用。
难点：使用恰当的语言讨论对科学探索重要性的观点和态度。
教学准备
教师准备：段介绍科学探索的视频和播放设备。
学生准备：复习本单元语法项目“表语从句”和本单元的重点词汇。
教学过程
Vide Time
Step I 学习理解
活动一：感知与注意
Predict
Befre watching，ask students t predict what they think they will see in the vide. And tick the items that they think will be mentined.
□ airplane □ butterfly city □ airplane
□ cmputer □ diver □ frg
□ hrse □ plar bear □ ship
□ submarine □ vican □ whale
【设计意图】在观看视频之前，让学生预测视频内容激活学生的已有认知，提高学习的兴趣。
活动二：获取与梳理
1.Watch and check
Play the vide fr students t watch and check their answers frm Befre Yu Watch.
Suggested answers:
butterfly; cmputer; diver; frg; plar bear; submarine vlcan: whale
2. Watch and fill in the blanks.
(1) G thrugh the sentences n Page 12 in While Yu Watch with students and make sure they understand the meanings.
(2) Play the vide fr students t watch and get the answers.
(3) Share the answers with the whle class, and if necessary, play the vide again fr students t check the answers.
Suggested answers:
① be curius; want t learn mre
② yurself; where yu grw
③ this place; urselves; hw things wrk
④ By knwing; we care abut
⑤ with ur wrld; with ur human family; with lve
3. Watch and match
(1) Play the vide again and match the descriptins n he left with the wrds n the right，
① a first flight
② used t explre an inaccessible place
③ a new species
④ eight new species
⑤ a natural alarm clck
(2) Share the answers in grups. If necessary, play the vide again fr students t check the answers.
Suggested answers
①D②E③B④A⑤C
【设计意图】通过观看视频进行填空、完成匹配练习，让学生在解决问题的过程中实现对视频内容的理解，获取视频中相关的信息。
Step Ⅱ 应用实践
活动三：分析与判断
Discussin
Ask students t wrk in grups f fur and discuss the fllwing questins.
·Of the explratins in the vide，which seems the mst imprtant？Which seems the mst interesting？Why？
·Why is it imprtant t explre，in yur pinin？
·Hw wuld yu like t explre ur wrld？Why？
Suggested answers:
·The mst imprtant is the ne with the butterflies because butterflies are easily affected by climate and pllutin, and s their lives can tell us a lt abut hw the wrld is ding.
The mst interesting is the cave diving where they fund the animal bnes. It just seems s strange and mysterius, and ne wuld nt expect t find bnes there
·I think it is imprtant t explre because explratin is a part f human grwth, bth as an individual and sciety. Thrugh explratin, we develp urselves. Our interests and curisity cause us t learn, t imprve, and t be better
·I wuld like t visit places with my camera and take phts f interesting places and peple, as I enjy phtgraphy and lve travelling and finding ut abut new cultures.
【设计意图】在观看视频后，让学生讨论自已对科学探索重要性的认识，以及表达自己探索世界的方式，有助于培养学生的多元思维和利用本课所学的词汇在新的语境中表达自己的观点，有利于促进知识的内化，加深对主题意义的理解。
Assessing Yur Prgress
活动四：词汇复习
1.单词拼写
① The setting sun ________（投射）an range glw ver the muntains.
② She was abut t set ff when a familiar ________（影子）suddenly came int her sight.
③ A________（彩虹）is hanging n the sky after the rain.
④ ________（倒出）the hney int the bwl and mix it thrughly with the ther ingredients.
⑤ There was a vast distance between psychlgical lues and________（具体的）prf.
⑥ This________（显微镜）can magnify bacteria three thusand times their actual size.
Suggested answers:
① cast② shadw③ rainbw④ Pur⑤ cncrete⑥ micrscpe
2.完成句子
①我们刚进屋，大雨便倾盆而下。
________________________we were inside，the rain began t bucket dwn.
②我们学校的每个学生在课堂上使用电脑是可能的。
_________________________every student in ur schl shuld use a cmputer in class.
③该证据表明，在鸟类学会飞翔之前，恐龙的身上就已进化出羽毛了。
_________________________that feathers evlved in dinsaurs befre birds adapted them fr flight.
④实验表明这个新工艺流程是很实用的。
_________________________that the new prcess is very practical.
⑤这房子正是她目前最需要的东西。
This huse is ________________________ mst at present.
⑥听起来好像某人正在敲门。
It _________________________smene is kncking at the dr.
Suggested answers:
① As sn as
② It is pssible that
③ The evidence prves
④ The experiment shws
⑤ what she needs
⑥ sunds as if
3. Read and cmplete.
(1) G thrugh the wrds in the bx and make sure students understand their meanings.
(2) Ask students t read the passage and fill in the blanks with the crrect frms f the wrds in the bx.
(3) Share the answers first in pairs r grups and then with the whle class.
Suggested answers:
micrscpe; brilliant; slid; cntradictry thery; findings; astrnmer; gifted
【设计意图】通过单词拼写、完成句子及选择恰当单词完成与科学家精神与工作相关话题的句子，属于词汇练习。该活动旨在本单元具体语境中练习词汇，提高词汇的运用能力。
活动五：语法再现
1.单项选择
① The questin is ________ we will have ur sprts meet next week.
A. that B. if C. when D. whether
② The reasn why he failed is ________ he was t careless.
A. because B. that C. fr D. because f
③ G and get yur cat . It's ________ left it.
A. where B. there C. there where D. where there
④ The prblem is _______ t take the place f Ted.
A. wh can we get B. what we can get
C. wh we can get D. that we can get
⑤ What I want t knw is ________ he likes the gift given by us.
A. that B. if C. whether D.不填
⑥ The reasn is ________ I missed the bus.
A. that B. when C why D. what
⑦ That is ________ we were late last time.
A. that B when C why D. what
⑧ She lked ________ she were ten years yunger.
A. that B. like C. as D as thugh.
⑨-I feel sick！
-I think it is _______ yu are eating t much.
A. why B. when C. what D. because
⑩ The reasn why he hasn’t cme is ________.
A. because his mther is ill
B. because f his mther's being ill
C. that his mther is ill
D. fr his mther is ill
Suggested answers:
①~⑤ DBACC⑥~⑩ ACDDC
2.表语从句翻译
①真正重要的不在于别人怎么看待你，而在于你怎么看待你自己。（…）
___________________________________________________________________
___________________________________________________________________
②给我印象最深的是这一仪器的发明者是一位中学生。（impress）
____________________________________________________________________
____________________________________________________________________
③问题是你能否在大多数人反对的情况下坚持自己的观点。（stick t）
____________________________________________________________________
____________________________________________________________________
④她不能理解的是为什么对她的课感兴趣的学生越来越少。（shw interest in）
____________________________________________________________________
____________________________________________________________________
⑤事实是地球表面超过百分之七十都是被水覆盖的。（cver）
____________________________________________________________________
____________________________________________________________________
Suggested answers:
① What really matters is nt hw thers think f yu but hw yu think f yurself.
② What impressed me mst was that the device was invented by a high schl student.
③ The prblem is whether yu can stick t yur pint f view while mst peple are against it.
④ What she culdn’t understand was why fewer and fewer students shwed interest in her lessns.
⑤ The fact is that mre than seventy percent f the Earth's surface is cvered by water.
3. Read and fill in the blanks
(1) G thrugh the passage and make sure students understand its meaning.
(2) Ask students t read the passage and fill in each blank with a wrd r expressin that intrduces a predicative clause.
(3) Share the answers first in pairs r grups and then with the whle class.
Suggested answers:
what; what; hw; what; hw; why; because; that/as if
【设计意图】该活动把语法复习恰当地置于本单元的主题语境中，学生在语境中复习和运用语法项目，提高语法使用的实践性和应用性。
活动六：单元反思
Reflecting
1.G thrugh the questins with students and make sure they understand their meanings.
·What new ideas did yu learn abut science and scientists frm this unit？
·What new vcabulary and structures did yu learn in this unit？Hw well can yu use them？Did yu use any f them in yur language activities？
·D yu think the asking questins" strategy was useful in understanding the texts？
·What prblems did yu r yur friends have with this unit？Hw did yu slve the prblems？What advice did yu give each ther？
·Overall，I thught this unit was inspiring interesting s-s difficult.
2.Ask students t wrk in grups and discuss the questins.
3.Ask students t share the answers.
【设计意图】本环节围绕单元主题设计了几个开放性的问题，旨在引发学生对单元主题意义的再思考，并发表自已的看法和认识，有助于深化对主题意义的探究。
板书设计
① Emily Ainswrth: "It's part f human nature t________ and t________ abut the wrld."
② Juan Martinez: "It' s where yu find________ where yu find new things, ________."
③ Lee Berger: "We think we knw ________, but we dn’t. We think we knw ________, but we dn't, We think we understand________, but we dn't"
④ Catherine Wrkman:" ________what's ut there, ________what' s ut there."
⑤Cry Richards "And if we have mre t care abut then we engage mre fully ________ and mre full and we act--yu knw--________.”
A fish
B frg
C plar bear
D butterfly with a tag
E drne
brilliant slid micrscpe finding
cntradictry gift astrnmer thery
The scientist's main task is t discver hw things wrk in the universe. But few scientists have placed themselves under the ________. S even thugh the ________ scientific methd, which mainly includes hyptheses, data cllectin, and statistical analysis, is written dwn, the methd by which scientists cme t ________ cnclusins Is hard t identify. Tw f the essential qualities a scientist needs t have seem t be curisity and creativity. Peple wh are curius usually have mixture f seemingly ________ desires: They are lking fr riginality and yet they als want everything in its prper place. T settle the cnflict between statistics and ________, scientists ften have t be creative, and think utside the bx-apprach the prblem frm different directins. They must have a vivid imaginatin and a strng intuitin in rder fr new ________ t be made. It eches smething the ________ Carl Sagan nce said. He believes that every child "starts ut as a scientist" and every child is ________ with the "sense f wnder and awe".
Science is simply ________ yu can d. And ding science makes yu a scientist! S, what d scientists d? Actually, what matters is nt nly ________ they bserve in the wrld arund them and what questins they ask, but als ________ they use evidence r data t answer the questins.
They identify useful data and take new measurements. Sme f the key issues that scientists face are ________ calculatins they d and ________they analyse their data t draw cnclusins abut the questins they ask. The final issue, which many believe t be the mst imprtant, is th need t cmmunicate their results. This is ________ they want everyne t benefit frm their wrk! It seems ________ science Is arund us.
Yu see, by ding science, scientists get a better understanding f the wrld arund them and share that understanding with the whle wrld.
Unit 1 Science and Scientists
Perid Ⅵ Vide Time Assessing Yur Prgress
Vide Time
I.学习理解
活动一：感知与注意
Predict
活动二：获取与梳理
1.Watch and check
2.Watch and fill in the blanks
3.Watch and match
Ⅱ.应用实践
活动三：分析与判断
Discussin
Assessing Yur Prgress
活动四：词汇复习
活动五：语法再现
活动六：单元反思
Refeflecting