2018年人教版PEP最新版小学六年级英语下册：Four Seasons(小升初精品资料)

【教案】人教PEP六年级英语下册第4单元The fourth period(第四课时)

The fourth period（第四课时）Part B Let’s learn & Listen, match and say▶教学内容与目标▶教学重点能够理解并掌握本课时的词汇和句型。

▶教学难点能够熟练运用所学语言在情景中介绍自己或他人对事物喜好的变化。

▶教学准备1. 预习《状元大课堂》《创优作业100分》《状元作业本》中本课时的相关内容。

2. PPT课件、课文音频、视频、单词卡片等。

▶教学过程Step 1: Warm-up & Revision & Lead-in①1. Greetings.2. Let’s sing—Seasons Song.T: Let’s sing a very cheerful song—Seasons Song. I’m sure you’ll like it.(出示课件)3. Lead-in.Show the word cards of the four seasons.T: Which season do you like best？S s: I like…best.T: What can you do in…?Ss: I can…◆Teaching purpose①通过欢快的歌谣导入新课，迅速调动学生学习的注意力和积极性。

以基于歌曲话题的简短师生对话复习旧知，导入本课主题。

Step 2: Presentation②1. Learn the phrase “go cycling”.T: In different seasons, the weather is different. We can do lots of different activities. Brainstorm the relative activities.T: It’s warm in spring. What activities can you do?(课件出示：春天景色图)Ss: I can fly a kite/have a picnic/plant trees/go hiking/go cycling/…(Write down the relative phrases on the blackboard.)Teach the word “cycle” and the phrase “go cycling”. When “cycle” performs as a noun, it means “bike”. When it performs as a verb, it means “ride a bike”. And we can also say “go cycling”. Let students read the phrase after the recording. (课件出示：go cycling的图片及音频)2. Learn the phrase “play badminton”.T: How do you feel in autumn, cool or cold? (课件出示：秋天景色图)Ss: I feel cool.T: Yes, the cool weather is very good for many sports. What sports can you do in autumn?Ss: I can play ping-pong/basketball/football/badminton…Teach t he phrase “play badminton”. Lead students to read and memorize the word “bad-min-ton” in syllables. Let students read the phrase after the recording. (课件出示：play badminton的图片及音频)◆Teaching purpose②创设情境，导入季节、天气和活动，激活学生在不同季节中能进行的活动的相关语言，顺势导入新词，学习本课的核心单词和短语。

PEP_六年级下Unit4_A_let's_learn

dance
and
danced
I sang and danced.
learn English
learned English
Than,I learned English hardly(努力地).
What did you do on your holiday? Took, took, I took pictures. What did you do on your holiday? Climbed, climbed, I climbed mountains. What did you do on your holiday? Learned, learned, I learned Chinese. What did you do on your holiday? Ate, ate, I ate good food. What did you do on your holiday? Sang and danced, sang and danced, I sang and danced on my holiday.
homework
• Do your workbook on page 28.
• Copy the four-skilled phrases 5 times.
Unit 4
My holiday
What holidays do you know?
• New Year‘ s Day ∕ the Spring Festival (新年) • Women’s Day(妇女节) • Qing Ming Festival（清明节） • May Day （五一） • Children‘s Day（儿童节） • National Day（国庆节） • the Dragon-Boat Festival （端午节） • the Mid-Autumn Festival （中秋节） • summer holiday（暑假） • winter holiday（寒假）

复习作文(素材)人教PEP版英语六年级下册

六班级复习作文一、(1)介绍暑假方案〔一般将来时〕My summer holidayThe summer holiday is ing. I am going to Beijing with my parents in July. We will get there by car. I am going to the zoo. I like animals. I will also visit the Great Wall. I am going to take lots of pictures there. I’m going to buy some postcards for my friends. I will be very happy. In August I will stay at home to do my homework. What about your summer holiday?(2)介绍周末方案〔一般将来时〕My weekend plan句型：be going to +动词原形=will +动词原形短语:draw pictures/do homework/see a film/visit my grandparents/go shopping/wash clothes/play games/go for a picnic时间：on Saturday morning/afternoon/evening on Sunday morning/afternoon/evening Hi,I’’m going to have a busy weekend.On Saturday morning,I’m going to go shopping with my mother.In the afternoon,I have to do my homework.In the evening,I’m going to read books.On Sunday morning,I’m going to visit my grandparents.In the afternoon,I’m going to play games with my friends.In the evening,I’m going to watch TV.What about you？Can you tell me?二、现在是周六晚上8:00，描述你的家人正在做什么〔现在进行时〕Today is July 5th. It’s Saturday. It’s 8:00 p.m now. Look! My grandparents are watching TV in the living room. My father is reading a book in the study. My mother is cooking dinner in the kitchen. My brother is doing his homework. I’m playing puter games. We are happy. What are you doing now?三、给大家介绍你的笔友My pen palI have a pen pal.His name is John.He is 12 years old.He is from the USA.But he lives in Beijing.He likes doing kung fu and swimming.His favourite sport is playing badminton.He studies Chinese every day.Do you want to be his pen pal?四、〔1〕介绍你上周末的活动〔一般过去时〕Last weekendI had a busy weekend. On Saturday morning, I cleaned my room at home. In the afternoon, I went to the library and read a book. I did my homework in the evening. On Sunday morning, I played pingpong with my friends. In the afternoon, I visited my grandparents. We watched TV together. I was tired, but I was happy.〔2〕介绍你的上一个暑假/寒假是如何度过的〔一般过去时〕My summer/winter holidayI had a good summer/winter holiday. I went to Sanya with my parents. Sanya is far from Shandong,so we went there by plane. Sanya was warm. We played football on the beach. We ate much fresh sea food there. I took pictures of the food. I also went shopping and bought some gifts for my friends. I was very happy. How was your summer/winter holiday?四、〔1〕介绍自己周末常常性的活动〔一般现在时〕My weekendI am John. On Saturday morning, I often get up at 6 o’clock. Then I do morning exercises. After breakfast, I usually do my homework. In the afternoon, I always watch TV and go shopping. On Sunday morning I usually help my mother do housework . In the afternoon, I usually play pingpong with my father. In the evening I often go for a walk with my grandparents. I have a good time on the weekend, what do you usually do on the weekend?〔2〕介绍你的一天〔一般现在时〕My dayHello, I’m Mike. I usually get up at 6:00 and eat breakfast at 7:00. Then I go to school. I have four classes in the morning and three classes in the afternoon. I go home at 4:00. Then I do my homework and read books. At 7 o’clock p.m, I eat dinner and watch TV. I go to bed at 9 o’clock. This is my day. I’m busy but happy. What about your day?五、〔1〕介绍自己的变化〔过去：一般过去时；现在：一般现在时〕My changesI am Mike. Look at my old photos. Before, I was short and quiet. I didn’t like sports. I couldn’t ride my bike well. But I am different now. I am tall and active now. I like sports very much. I go cycling every day. I often go swimming and play football, too. I want to be a football player in the future. How about you?〔2〕介绍学校的变化〔过去：一般过去时；现在：一般现在时〕My school changesI am Mike. My school is very different now. It changed a lot. Before my school was small. There was only a small building on a hill. There was no gym either. There were no puters or Internet in my old school. We didn’t have a library. But now we study in a big building. We play in the gym. We can use puters in the puter room. There are many books in our library. I love my school. It will be better and better.六、〔1〕介绍你的好伴侣〔一般现在时，留意主语三单，动词三单〕My good friendI have a good friend. She is Amy. Amy is 13 years old. She is a student. She is tall and thin. She has big eyes and long hair. She is very friendly. She often goes to school on foot. She plays sports every day. She likes summer best because she can go swimming. She likes going hiking and reading books. We often play together. I love my friend. Can you tell me about your friend?〔2〕介绍家人〔一般现在时,，留意主语三单，动词三单〕My familyThere are 4 people in my family. They are my father, my mother, my brother and me. My father is a doctor. He is the tallest one in my family. He is 39 years old. My mother is 2 years younger than my father. She has long hair. She likes singing and dancing. My brother is a student. He likes listening to music. I am a student too. I read books every day. I want to be a writer.I love my family. What about your family?（3）介绍老师My teacherI have many teachers.My favourite teacher is Miss Li.She is an English teacher.She is tall andthin.She has big eyes and a round face.She has long hair.She is strict and friendly.Her favourite food is salad.Because the salad is very delicious.She likes summer best.Because she likes swimming very much.She also likes singing.She often sings songs after school.We all like her very much.七、介绍自己最喜爱的季节〔一般现在时〕My favourite seasonThere are four seasons in a year. They are spring, summer, autumn and winter. My favourite season is spring. The weather is warm. There are beautiful flowers everywhere. It is pretty. I often go on a picnic with my family in spring. I can fly kites, too. Which season do you like best?(There are four seasons in a year. They are spring, summer, autumn and winter. My favourite season is summer. The weather is hot. I can go swimming every day. I often eat ice cream and watermelons in summer. They are sweet. The trees are green in summer. I like green. And I like summer vacation. Which season do you like best?)(There are four seasons in a year. They are spring, summer, autumn and winter. My favourite season is winter. The weather is cold. There is lots of snow in winter. I like snow. I can play in the snow. I often make a snowman with my father. And I like winter vacation. Which season do youlike best?)八、介绍自己的家乡〔there be句型〕My hometownI’m Amy. I live in a small village. My village is very beautiful. There are many trees in the village. The trees are very tall. There are two tall buildings. One is a school, and the other is a hospital. There is a library in our village, too. I often go to the library and read books. There is a river in front of my home. There are many pretty fish in the river. I love my village.九、描述一下你的房间〔there be句型〕My bedroomI have a nice bedroom. There is a blue bed in it. Beside the bed, there is a desk and a chair. There are many books on the desk. There is a water bottle on the desk, too. I always do my homework on the desk. I also have a big closet because I have many clothes. There is a family photo and a clock on the wall. I like my bedroom.十、描述一下你的家〔there be句型〕My homeThere are five rooms in my home. They are two bedrooms, a living room, a bathroom and a kitchen. There is a sofa in the living room. There are some flowers, too. There is a TV in my bedroom. I like watching TV. There are some pictures and a clock, too. There is a fridge in the kitchen. I love my home and I love my family.。

PEP六年级英语下册Unit4 A

ቤተ መጻሕፍቲ ባይዱ
I went to Xinjiang .
A Let’s chant
Where did you go on your holiday ? We went to Canada on our holiday . How did you go on your holiday ? We went by airplane on our holiday .
Where did you go on your holiday ?
I went to Guangzhou . What did you do there ? I ate good food with my new friends .
Listen and circle .
Where did you go on your holiday ?
What did you do on your holiday ?
We skied and made a snowman on our holiday .
Did you have a good time on your holiday ?
We had a lot of fun on our holiday .
A Let’s Talk
Mike: Where did you go on your holiday ?
John: I went to Xinjiang . Mike: What did you do there ? John: I sang and danced with my new friends .
Unit Four My Holiday (A)
北海小学刘盛均
What do you usually do on your holiday?

人教版PEP小学英语六年级下册第四单元A部分课件

Children’s Day
May Day
National Day
What do you usually do on your holiday? I usually …
take pictures/climb mountains...
What do does they he usually do on their his holiday? holiday?
用方框内的词填空
What When Where How Why
Where 1.--________did you go on your holiday? --I went to Xinjiang. What 2.--__________did you do on your holiday? --I ate good food. Why 3.--___________were you late for school? --Because my bike was broken. 4.--___________was your last trip? When --Last summer. How 5.--___________did you go on your holiday? --We went by airplane on our holiday.
Listen,tick or cross.
( ×)1 John had fun with his parents. ( ×) 2 On Monday,he went to a cinema. ( √ ) 3 He went to a park on Tuesday. ( ×) 4 He went swimming on Wednesday. ( √ ) 5 On Friday,he will be back home.

六年级下册英语 Unit 4 Part A 人教PEP版

last month now
Your conversation
A: There was no ______ last year/last month /...months ago/...years ago...
B: Now ______________.
Find the mistakes
Look at the picture in the book. There were many strange things in the picture. Can you find the mistakes?
What can we do in the gym?
play basketball play ping-pong play tennis
What can we do in/on the ____? We can...
饭厅
—Where can we have breakfast and lunch? —In the dining hall.
以前
Summary
ago的用法
ago用作副词，意为“以前”，在句中不能单独使用，它的前面必须要有一个表示时间的词或词组，ago词组用于一般过去时。
例：一年前 a year ago
DATE:2021年5月11日
2021 年 5 月
日一二三四五六
ago
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
school _tw_o__m_o_n_t_h_s __a_g_o __.
Now _t_h_e_re__is__ a new one.

六年级下册英语课件-3.1 我们一起学四季 (三起)(共15张PPT)

Wet Season Dry Season
知识讲解
SNOWS AUTUMN SWIM SUMMER WINTER RAINS SEASON HOT WEATHER Across 1. What’s the _____ like in your city? 5. I don’t like summer. The weather is too _____. 6. We can make a snowman in _____. 8. It usually _____ in the winter. 9. The weather is usually hot in _____.
课堂小结
What happens to trees in different seasons? 树木在不同的季节会发生什么变化？ Sometimes I like to look at the clouds. 有时我喜欢看云。
Thanks and see you next time!
1、只要有坚强的意志力，就自然而然地会有能耐、机灵和知识。2、你们应该培养对自己，对自己的力量的信心，百这种信心是靠克服障碍，培养意志和锻炼意志而获得的。 3、坚强的信念能赢得强者的心，并使他们变得更坚强。4、天行健，君子以自强不息。5、有百折不挠的信念的所支持的人的意志，比那些似乎是无敌的物质力量有更强大的威力。6、永远没有人力可以击退一个坚决强毅的希望。7、意大利有一句谚语：对一个歌手的要求，首先是嗓子、嗓子和嗓子……我现在按照这一公式拙劣地摹仿为：对一个要成为不负于高尔基所声称的那种“人”的要求，首先是意志、意志和意志。8、执着追求并从中得到最大快乐的人，才是成功者。9、三军可夺帅也，匹夫不可夺志也。 10、发现者，尤其是一个初出茅庐的年轻发现者，需要勇气才能无视他人的冷漠和怀疑，才能坚持自己发现的意志，并把研究继续下去。11、我的本质不是我的意志的结果，相反，我的意志是我的本质的结果，因为我先有存在，后有意志，存在可以没有意志，但是没有存在就没有意志。12、公共的利益，人类的福利，可以使可憎的工作变为可贵，只有开明人士才能知道克服困难所需要的热忱。13、立志用功如种树然，方其根芽，犹未有干；及其有干，尚未有枝；枝而后叶，叶而后花。14、意志的出现不是对愿望的否定，而是把愿望合并和提升到一个更高的意识水平上。15、无论是美女的歌声，还是鬓狗的狂吠，无论是鳄鱼的眼泪，还是恶狼的嚎叫，都不会使我动摇。16、即使遇到了不幸的灾难，已经开始了的事情决不放弃。17、最可怕的敌人，就是没有坚强的信念。18、既然我已经踏上这条道路，那么，任何东西都不应妨碍我沿着这条路走下去。19、意志若是屈从，不论程度如何，它都帮助了暴力。20、有了坚定的意志，就等于给双脚添了一对翅膀。21、意志坚强，就会战胜恶运。22、只有刚强的人，才有神圣的意志，凡是战斗的人，才能取得胜利。23、卓越的人的一大优点是：在不利和艰难的遭遇里百折不挠。24、疼痛的强度，同自然赋于人类的意志和刚度成正比。25、能够岿然不动，坚持正见，度过难关的人是不多的。26、钢是在烈火和急剧冷却里锻炼出来的，所以才能坚硬和什么也不怕。我们的一代也是这样的在斗争中和可怕的考验中锻炼出来的，学习了不在生活面前屈服。27、只要持续地努力，不懈地奋斗，就没有征服不了的东西。28、立志不坚，终不济事。29、功崇惟志，业广惟勤。30、一个崇高的目标，只要不渝地追求，就会居为壮举；在它纯洁的目光里，一切美德必将胜利。31、书不记，熟读可记；义不精，细思可精；惟有志不立，直是无着力处。32、您得相信，有志者事竟成。古人告诫说：“天国是努力进入的”。只有当勉为其难地一步步向它走去的时候，才必须勉为其难地一步步走下去，才必须勉为其难地去达到它。33、告诉你使我达到目标的奥秘吧，我唯一的力量就是我的坚持精神。34、成大事不在于力量的大小，而在于能坚持多久。35、一个人所能做的就是做出好榜样，要有勇气在风言风语的社会中坚定地高举伦理的信念。36、即使在把眼睛盯着大地的时候，那超群的目光仍然保持着凝视太阳的能力。37、你既然期望辉煌伟大的一生，那么就应该从今天起，以毫不动摇的决心和坚定不移的信念，凭自己的智慧和毅力，去创造你和人类的快乐。38、一个有决心的人，将会找到他的道路。39、在希望与失望的决斗中，如果你用勇气与坚决的双手紧握着，胜利必属于希望。40、富贵不能淫，贫贱不能移，威武不能屈。41、生活的道路一旦选定，就要勇敢地走到底，决不回头。42、生命里最重要的事情是要有个远大的目标，并借助才能与坚持来完成它。43、事业常成于坚忍，毁于急躁。我在沙漠中曾亲眼看见，匆忙的旅人落在从容的后边；疾驰的骏马落在后头，缓步的骆驼继续向前。44、有志者事竟成。45、穷且益坚，不坠青云之志。46、意志目标不在自然中存在，而在生命中蕴藏。47、坚持意志伟大的事业需要始终不渝的精神。 48、思想的形成，首先是意志的形成。49、谁有历经千辛万苦的意志，谁就能达到任何目的。50、不作什么决定的意志不是现实的意志；无性格的人从来不做出决定。我终生的等待，换不来你刹那的凝眸。最美的不是下雨天，是曾与你躲过雨的屋檐。征服畏惧、建立自信的最快最确实的方法，就是去做你害怕的事，直到你获得成功的经验。真正的爱，应该超越生命的长度、心灵的宽度、灵魂的深度。生活真象这杯浓酒，不经三番五次的提炼呵，就不会这样可口！人格的完善是本，财富的确立是末能力可以慢慢锻炼，经验可以慢慢积累，热情不可以没有。不管什么东西，总是觉得，别人的比自己的好！只有经历过地狱般的折磨，才有征服天堂的力量。只有流过血的手指才能弹出世间的绝唱。对时间的价值没有没有深切认识的人，决不会坚韧勤勉。第一个青春是上帝给的；第二个的青春是靠自己努力的。不要因为寂寞而恋爱，孤独是为了幸福而等待。每天清晨，当我睁开眼睛，我告诉自己：我今天快乐或是不快乐，并非由我所遭遇的事情造成的，而应该取决于我自己。我可以自己选择事情的发展方向。昨日已逝，

人教PEP六年级下册英语Unit 4 Part A 第二课时课件

Ask about your father’s school and write down.
TWO
Make a short dialogue using the sentences we have learnt.
►Suffering is the most powerful teacher of life. 苦难是人生最伟大的老师。 ►For man is man and master of his fate. 人就是人，是自己命运的主人。 ►A man can't ride your back unless it is bent. 你的腰不弯，别人就不能骑在你的背上。
Time phrases we learnt.
last year last month …years ago …months ago
去年
上个月 ……年前 ……月前
at that time in the old time(days) next week
在那时
过去
下周
tomorrow yesterday this week very long time ago
gym
grass
dinning hall
ago
Find the mistakes
In the Tang dynasty…
At that time, there were no gyms. People didn’t go by bus. People couldn’t use the Internet.
Summary
1. 学习了下列短语： dining hall, gym, grass, ... years ago, ... months ago, last year/month

新版PEP人教版六年级下册Unit4BLetslearn

couldn't / cycling Because he couldn't ggoocyccylincgl.ing
Yifan likes winter now.
like/ winter
can/ ice-skate
Because he can iiccee--sskkaattee. He loves to go ice-skating now.
2.Before, he ______ go cycling in
winter. Now he can ________.
3.Before, he _____ tall, he _____
play badminton. Now he is tall, he ____ play badminton.
Let's play a game.
cotuhldeicceo-smkapteu,tceourl,dn..'.t
cook the meals
can write a story
Task 3. Write a report
My friend
I have a good friend. His name is ___T_o_n_n_y. He was ____s_h_o_r_t__, He was _1_._3_5__meters and __3_5__kilograms four years ago. He was _a_c_t_iv_e_. He liked __ic_e_-_s_k_a_t_in_g__a_n_d__cy_c_l_in_g_. He didn't like _p_la_y_i_n_g_b_a_d_m__in_t_o_n. He thought __h_e_w__as_n_'_t__ta_l.lHe couldn't p_l_a_y_b__ad__m_in_t_o_n__. Now, He is very different. He is _t_a_l_l __, he is _1_._5_7_meters and __4_2__kilograms. He is __q_u_ie_t__. He likes _r_e_a_d_in_g__. He can _w_r_it_e__a_s_t_o_r_y. He loves __t_o_w_r_i_t_e_a__s_t_o_r_y.

人教版(PEP义务教育版)英语六年级下册 Unit 4 Part B 第二课时名师教学课件

BC
( A) 2. I thought it is too cold.
A
BC
( C) 3. Mike can play the badminton.
AB
C
__d_id_n_’t___ __t_h_in_k___ _ba_d_m_i_n_t_on_
三、连词成句。
1. couldn’t, Amy, cycling, go, before(.) __A_m__y_c_o_ul_d_n_’t_g_o_c_y_c_li_ng__b_e_fo_r_e_. ______ 2. I, love, ice-skate, to, winter, in(.) __I__lo_v_e_t_o_i_ce_-_s_k_at_e_i_n_w_i_n_te_r_.________ 3. don’t, I, like, maths, now(.) __I__do_n_’t__li_ke__m_a_t_hs__n_ow__. ____________
Listen and answer the questions.
Did Wu Yifan like winter before? No, he didn’t. Does he like winter now? How do you know? Now he likes winter. Because he loves to ice-skate.
go cycling
ice-skate
play badminton
Wu Yifan: I didn’t like winter before. I thought it was too cold, and I couldn’t go cycling. Mike: How about now? Wu Yifan: Now I love to ice-skate, so I like winter.

pep(人教)六年级英语下册 part A (4) 优质课件.ppt

。2020年12月15日星期二2020/12/152020/12/152020/12/15
• 15、会当凌绝顶，一览众山小。2020年12月2020/12/152020/12/152020/12/1512/15/2020
• 16、如果一个人不知道他要驶向哪头，那么任何风都不是顺风。2020/12/152020/12/15December 15, 2020
• 9、春去春又回，新桃换旧符。在那桃花盛开的地方，在这醉人芬芳的季节，愿你生活像春天一样阳光，心情像桃花一样美丽，日子像桃子一样甜蜜。 2020/12/152020/12/15Tuesday, December 15, 2020
• 10、人的志向通常和他们的能力成正比例。2020/12/152020/12/152020/12/1512/15/2020 9:06:25 AM • 11、夫学须志也，才须学也，非学无以广才，非志无以成学。2020/12/152020/12/152020/12/15Dec-2015-Dec-20 • 12、越是无能的人，越喜欢挑剔别人的错儿。2020/12/152020/12/152020/12/15Tuesday, December 15, 2020 • 13、志不立，天下无可成之事。2020/12/152020/12/152020/12/152020/12/1512/15/2020
•
THE END 17、一个人如果不到最高峰，他就没有片刻的安宁，他也就不会感到生命的恬静和光荣。2020/12/152020/12/152020/12/1520 very much for taking me with you on that splendid outing to London. It was the first time that I had seen the Tower or any of the other famous sights. If I'd gone alone, I couldn't have seen nearly as much, because I wouldn't have known my way about.

新PEP英语六年级下册 Unit4 Part B 第二课时

【详解】thought 为“think”的过去式,后面跟的句子作“认为” 的宾语。这个句式表达的意思为“太……不能……”。
【拓展】同样的一种用法还有“too… to…”句型,意思是 “太……而不能……”。句型结构:
主语 + be动词 + too + 形容词 + to + 动词 + 其他.
重点句型二 How about now?现在呢?
Unit 4 Then and now
人教版(三年级起点)六年级下册
Part B Let's learn Listen, match at’s sing
Presentation
ice-skate (动词)滑冰
【短语】 go to ice-skate 去滑冰
cycling
骑自行车运动
重点句型
I thought it was too cold and I couldn’t go cycling. 我觉得太冷了,我不能骑自行车。
Homework
请同学们根据自己的调查，描述自己好朋友的变化。
【短语】 go cycling 去骑自行车
They often go cycling. 他们经常参加骑自行车运动。
Game
I say you do
Listen and answer the questions
1.Did Wu Yifan like winter before? Why or why not?
2.Does he like winter now? How do you know?
视频
点击“Let's learn”，跟我一起读吧！
Let's learn