八年级上册英语Unit2导学练(2019年新人教版)
课题：unit 2 how often do you exercise?
period 1 (section a 1a-1c)
主备人：_____李瑞居___ 审核人：______________ 审核时间：_____________ 等级认定：______________ 学科组长签字：____________ 教科室签字：__________
学习目标【learning objectives】
1.熟练掌握下列单词：housework, hardly, ever, hardly ever
2.掌握频率词汇及询问活动频率；熟练运用一般现在时态.
3.能听懂并熟读文中的对话:
a:what do you usually do on weekends?
b:i often go to the movies.
a: do you go shopping?
b:no, i never go shopping.
重点和难点【important and difficult points】
1.重点：能熟读并拼写单词housework, hardly, ever, hardly ever以及一些频度词汇。
2.难点：初步学会谈论活动的频率。
预习内容【preview contents】
自主预习并完成section a 1a—1c的导学单，为上课做好准备。
学习过程【learning process】
一、 预习反馈，明确目标【preview feedback, clear objective】
ⅰ.翻译：
1.家务劳动 ____________ 2.几乎没有______________3.在任何时候，曾经______________
4.几乎从不 ______________ 5.有时 _______________ 6. never_________________
7. 总是_________________ 8. often_________________ 9. usually________________
ⅱ. 通过预习，你们能又快又准确翻译下列句子吗？
1.你多久去运动？_____________________________________________________________
2.你周末通常干什么？_________________________________________________________
3.我通常去看电影？___________________________________________________________
4.你通常去购物吗？ __________________________________________________________
5.我从来都不去购物。_________________________________________________________
6. 我经常帮助妈妈做家务。____________________________________________________
7. 我几乎从不看电视。________________________________________________________
二、创设情境，自主探究【create situations, self inquiry】
finish 1a and 1b.
三、展示交流，点拨提升【display communication, coaching to enhance】
pairwork 1c.
四、师生互动，拓展延伸【teacher-student interaction, development】
grammar focus:
频率副词及相关的百分比。
1. 频率副词，表示动作发生间隔的副词。它们主要是：always; usually ; often ; sometimes; hardly ever; never等。always意为 “总是”, 表示动作的重复或状态的延续。usually意为 “通常”, 表示很少有例外。often意为 “经常”, 表示动作的重复, 但不如usually那么频繁, 中间有间断。sometimes意为 “有时”, 表示动作偶尔发生。hardly意为 “几乎不”, 常和ever连用表示强调。never意为 “从未”。
2. 频度副词的比率大概是：
always (100%) usually(80%) often (30-50%) 共16页，当前第1页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
sometimes (20%) hardly ever(5%) never (0%)
3. 频度副词的位置：通常在主语后，实义动词前面。但sometimes也可在句首。如：they often go swimming in summer. he never speaks japanese.
4. 对句中的频度副词提问，使用how often(多久)， 如：
she hardly ever watches tv on weekends.
how often does she watch tv ?
五、达标测评, 巩固提高【evaluation standards，consolidation and improvement】
（ ）1.i like english very much,so i ______ listen to the tape in the morning.
a.usually b.hardly ever c.never
（ ）2.—what does your father do in the evening? —he usually ____________.
a.watch tv b.exercises c.read books
（ ）3.“____________give up,then you can be successful(成功) .”
a.always b.sometimes c.never
（ ）4.—doctor,_______ should i take this medicine?
a.what time b. how much c. how often
（ ）5.though he has studied _______ at russian for ten mouths, he can still ____speak it.
a. hard; hardly b. hardly; hardly c. hardly; hard
作业布置: a（必做）:
b（选做）:
教学反思: 本节课成功之处和亮点：
需要改进和注意的地方：
课题：unit 2 how often do you exercise?
period 2 (section a 2a-2d)
主备人：_______________ 审核人：______________ 审核时间：_____________ 等级认定：______________ 学科组长签字：____________ 教科室签字：__________
学习目标【learning objectives】
1. 熟练掌握下列单词：once, twice, internet, program, full, swing, swing dance.
2.频率词汇及询问活动频率；一般现在时态的熟练运用。
3.能听懂并熟读文中的对话。
重点和难点【important and difficult points】
1.重点：熟练掌握下列单词：once, twice, internet, program, full, swing, swing dance.
2.难点：频率词汇及询问活动频率。
预习内容【preview contents】
自主预习并完成section a 2a—2d的导学单，为上课做好准备。
学习过程【learning process】
一、 预习反馈，明确目标【preview feedback, clear objective】
翻译下列单词及短语：
1.两次，两倍_______________ 2.一次，曾经 ________ 3. 因特网 ______________
4. 节目_____________5.满的，充满的 _____________ 6. 摆动，秋千_________________
7.摇摆舞 _____________ 8. 去看电影 __________________9.看电视_________________ 共16页，当前第2页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
10.上网_________________________¬¬¬¬¬¬ 11.锻炼_____________________________
12.每天_________________________ 13.一周一次__________________________
14.一周两次_______________________15. 一周三次__________________________
16.一月一次_______________________17. 让我想想_________________________
19.怎么回事？_____________________ 20. 喜欢的节目_______________________
二、创设情境，自主探究【create situations, self inquiry】
finish 2a and 2b.
三、展示交流，点拨提升【display communication, coaching to enhance】
pairwork 1. finish 2c. fill in the chart and then make conversations with your partner.
pairwork 2. role play the conversation in 2d.
四、师生互动，拓展延伸【teacher-student interaction, development】
grammar focus:
ⅰ.疑问词 how 的用法:
1.怎样，用什么手段，方法/交通工具
how are you? / how is she?
how did he do it? / i don't know how to swim.
how do you come to school?
2.情况如何（指身体健康状况） how are you?
3. how many，how much 表示"多少"其中how much 还可以表示钱数。
how many 后接可数名词复数，how much 接不可数名词。
how many times do you go to the park?
how many pens do you want?
how much water do we drink every day?
how much are those pants?
4.how often 是对动作发生的“次数”提问，询问的是频率“多久一次”.
回答可以是：every day. / once a week. / three times a week. / often. / …
how often do you play tennis? three times a week.
how often do you surf the internet？
5. how old …? 询问年龄 how old are you? i am five.
6. how about …? ……如何？……怎么样？ how about going to the movies?
7.how long 多长，用来询问多长时间，也可询问某物有多长。
how long does it take to get to shanghai from here? how long is the ruler?
8.how far 多远， 用来询问距离，指路程的远近。
how far is it from here to the park? it’s about 2 kilometers.
ⅱ.once , twice, three times等次数的表达法。
1) 这三个词都表示________，once是_______，twice是_______，除了一次，两次，其他的次数都表达：次数+times。 如：三次是____________，五次是____________。
2) 这些表次数的词后与一段时间连用，表示动作多长时间发生几次，即动作的______。
3) 翻译： 两周一次 ________________ 一年两次 ________________
一个月两次 ________________ 一月八次_________________
五、达标测评, 巩固提高【evaluation standards，consolidation and improvement】
ⅰ.对划线部分提问：
1.my favorite program is animal world.共16页，当前第3页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
_______ _______favorite program ?
2. they hardly ever play football.
_______ _________ ________they play football ?
3. he does homework at home after school.
_______ ________ he do homework after school?
ⅱ.单项选择
( ) 1.a: _____does she exercise? b: once a week.
a. how often b. how soon c. how long
( ) 2. i ______ like to drink milk. a. not b. doesn’t c. don’t
( ) 3. how often does tom ____ tv? he ____ tv three times a week.
a. watches, watches b. watch, watches c. watches, watch
( ) 4.i visit my parents _________a month.
a. two times b. second time c. the second time d. twice
( ) 5. one of my favorite programs ________ animal world.
a. am b. is c. are d. don't
( ) 6.she hardly ever ________ sports games _____ tv on sunday evening..
a. watching; over b. to watch; in c. watch; by d. watches , on
ⅲ.连词成句。
1. usually , soccer, play, i (.)
_____________________________________________________
2. often, katrina, does, tv, watch, how.(?)
_____________________________________________________
3. do, you, what, usually, weekends, on, do ( ? )
_____________________________________________________________
作业布置: a（必做）:
b（选做）:
教学反思: 本节课成功之处和亮点：
需要改进和注意的地方：
课题：unit 2 how often do you exercise?
period 3 (section a grammar focus-3c)
主备人：_______ _______审核人：________________ 审核时间：_________________
等级认定：_____________学科组长签字：___________ 教科室签字：_______________
学习目标【learning objectives】
1.掌握下列单词：maybe, least, at least
2.掌握grammar focus中的内容,巩固频率词汇及如何询问活动频率。
3.完成3a-3c.
重点和难点【important and difficult points】
1.重点：掌握下列单词：maybe, least, at least.
2.难点：掌握grammar focus中的内容,巩固频率词汇及如何询问活动频率。
预习内容【preview contents】
自主预习并完成section a grammar focus—3c的导学单，为上课做好准备。
学习过程【learning process】
一、 预习反馈，明确目标【preview feedback, clear objective】
翻译句子。
1. 你周末通常做什么？ ___________________________________________________
2. 我总是锻炼。 ___________________________________________________________共16页，当前第4页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
3. 他们周末做什么？ _____________________________________________________
4. 他们经常帮助做家务 _____________________________________________________
5. 她经常周末做什么？_______________________________________________________
6. 她有时去购物。 _________________________________________________________
7. 你隔多长时间去看一次电影？______________________________________________
8. 我大概每隔一月看一次电影。 _____________________________________________
9. 他多长时间看一次电视？ _________________________________________________
10. 他几乎从不看电视？_____________________________________________________
11. 你购物吗？ _____________________________________________________________
12. 不，我从来不购物。 _____________________________________________________
二、创设情境，自主探究【create situations, self inquiry】
1. recite grammar focus.
2.finish 3a.
三、展示交流，点拨提升【display communication, coaching to enhance】
pairwork 3b.
use the words given to write questions. then ask and answer them with a partner.
pairwork 3c. what can you do to improve your english? add more things to the chart. then ask your classmates the questions the questions and find the best english student.
a: how _______ do you read english books?
b: i read english books about _______ _______ ________(每周两次).
四、师生互动，拓展延伸【teacher-student interaction, development】
grammar focus:
1. maybe 与 may be 的区别：
maybe 副词，意为“或许”，“大概”，“可能”；may be 属于“情态动词+be动词”，意为“可能是”。 (1)you___________ right. (2) ___________ you are right.
2. at least意为“至少，不少于；起码”，是副词词组，一般指在数量或程度上。
you have to clean your house _______ _________ once a week.
你必须至少一周打扫你的房间一 次。
3. sometimes , sometime, some times , some time 的区别：
(1) sometimes用作副词，表示“有的时候”，与from time to time 意思相同，可以把它放在句首，句尾或句中。sometimes是频率副词，它暗指某动作（在过去、现在或将来）有时候重复。如：
last year she went to the park sometimes.
sometimes i get up at six.
(2)sometime 用作副词。表示某个不确切或不具体的时间，表示“某个时候”，它后面应该接一个过去或将来的时间。例如：
we will have a meeting sometime next week.(sometime last year,sometime next month等常修饰非延续性的谓语)
另外，sometime还可以用作形容词，表示“以前的”，如：
a sometime student of yours is waiting for you at the gate.
(3) some time 表示"一些时间"或“一段时间”，可以用作名词或副词短语。例如： 共16页，当前第5页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
it took us some time to water the flowers.
some time表"某一段时间"时，常常修饰延续性的谓语。如：
she stayed in bed for some time.
(4) some times 是名词词组，意为“几次，几倍”，如：
the factory is some times larger than that one.
用sometimes , sometime, some times , some time填空。
1. tom went back home __________last month.
2. i ____________ think you are wrong.
3. she always spends ______________ on her english.
4. i will work in japan for ___________.
5. i met him _______________ in the street last month.
五、达标测评, 巩固提高【evaluation standards，consolidation and improvement】
ⅰ.用方框内的单词或短语完成下面的句子。
always, every day, often, sometimes, never, hardly ever
1. he _________gets up at six o’clock.
2. how ________do you go to the movies?
3. it _______________rains here. it’s usually sunny and warm.
4. some of my friends exercise every day and hardly ever eat junk food，but the others eat junk food ____________.
5. 1 can’t swim. so i ____________go to the beach to swim. sometimes i go there with my friends to run.
ⅱ.单选。
1.--sally, how often do you use the internet ?-_________.
a. twice a week 3. three hours c. two years ago d. this afternoon
2. --zhang lili , the most beautiful teacher, moved us deeply.
--yes, and she is ___________popular with her students.
a.sometimes b. never c. always d. hardly
3. --_________do you visit your grand- parents? --once a month.
a. how soon b. how long c. how much d. how often
4. -- __________do you watch tv every week?
--less than two hours. i often have much homework to do.
a.how many b. how much c. how long d. how often
5. tom studies _______.he _______plays with his friends.
a. hard; hard b. hardly; hardly c. hard; hardly d. hardly; hard
作业布置: a（必做）:
b（选做）:
教学反思: 本节课成功之处和亮点：
需要改进和注意的地方：
课题：unit 2 how often do you exercise?
period 4 (section b 1a-1e)
主备人：_ ______ _ 审核人：________________ 审核时间：_________________
等级认定：_____________学科组长签字：___________ 教科室签字：_______________
学习目标【learning objectives】
1.掌握下列单词：junk, junk food, coffee, health
2. 巩固频率词汇,能听懂并熟练掌握活动频率的问答方法。
重点和难点【important and difficult points】
1.重点：掌握下列单词：junk, junk food, coffee, health；巩固频率词汇。共16页，当前第6页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
2.难点：能听懂并熟练掌握活动频率的问答方法。
预习内容【preview contents】
自主预习并完成section b 1a-1e的导学单，为上课做好准备。
学习过程【learning process】
一、 预习反馈，明确目标【preview feedback, clear objective】
翻译下列单词：
1.无用的东西___________2.垃圾食品_____________3.喝咖啡_________________
4.健康________________5.喝牛奶_______________6.对……有好处____________
7.好习惯____________ 8.吃水果__________________9.每天_________________
二、创设情境，自主探究【create situations, self inquiry】
1. finish 1a and practice 1b.
2. finish 1c and 1d.
三、展示交流，点拨提升【display communication, coaching to enhance】
pairwork 1e
四、师生互动，拓展延伸【teacher-student interaction, development】
grammar focus:
1.want sb to do sth 想要某人做某事
my mother wants me to drink it.我妈妈想要我喝。
want to do sth. 想要做某事
want sb. to do sth. 想要某人干某事
do you want to go to the movies with me？你想和我一起去看电影吗？
i want you to help me with my math.我想要你帮我学数学。
有很多动词后面用这种结构做动词的复合宾语：
ask sb. to do sth. 叫某人做某事
tell sb. to do sth. 告诉某人去做某事
help sb. (to) do sth. 帮助某人做某事
2. be good/bad for 对----有好/坏处
be good for … 表示“对……有益（有好处）”其反义为：be bad for … 对……有害/无益
it’s good for us to do more reading.多读书对我们有好处。
drinking milk is good for your health.喝牛奶对你的健康有益。
reading english is good for studying english.对英语对学习英语有益/有帮助。
reading in bed is bad for your eyes.在床上读书对你的眼睛有害。
五、达标测评, 巩固提高【evaluation standards，cosolidation and improvement】
ⅰ.单项选择：
1.__________do you drink coffe? -----twice a day.
a.how many b.how long c. how soon d. how often
2.my teacher wants me _________ hard.
a.study b. studying c. to study d. studies
3.eating fruit and vegetables _____________ our health.
a. is good to b. is good c.is good for d.is well for
4.miss liu is very ________, because she exercises every day.
a. health b. healthy c. unhealthy d. unhealth共16页，当前第7页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
5.thank you for _______ me with my english.
a. help b. to help c.helping
6. _______ milk do you drink?
a. how many b. how much c.how often d. how soon
7.don’t read in bed. it’s bad ___ your eyes. a. for b.of c. with
8.i try to eat junk food once a week _____ i love it very much.
a. although b. through c. but
9. jenny _____ lifestyle. a. has a healthy b. have a healthy c. has a health
10.if you want to be healthier, you must eat ____ junk food, i think.
a. more b. less c. fewer
11. i try ____ vegetables eleven times a week. a. eat b. eating c. to eat
12. eating more vegetables helps you to keep ________ good health.
a. for b. in c. to
13.is katrina's life the same ____ （和……’同）yours?
a. as b. to c. with
ⅱ.阅读理解。
fruit is good for people. many people eat some fruit every day. mr and mrs green like fruit very much and every monday mrs green goes to buy some fruit in the shop near her house. the man in the shop knows her well and helps a lot.she can buy all kinds of fruit there, apples, pears, oranges and bananas. ln different time of the year, the price of each kind of fruit is not the same,sometimes high,sometimes low. mrs green wants to buy cheap fruit. but mr green only likes bananas. she buys bananas for him every week. she only buys cheap fruit for herself.
( )l. when does mrs green go to buy some fruit?
a. saturday' b. monday. c. thursday.
’ )2. where does mrs green buy fruit?
a. ln the shop near her house. b. in the town. c. near the shop
( )3. mrs green buys ____for mr green.
a. pears b. apples c. bananas
( )4. which of following is not right?
a. fruit is good for peopie. b. mrs green buys apples for herself
c. mrs green can buy all kinds of fruit.
( )5. ln different time of the year,the price of each kind of fruit is______.
a. the same b. not the same c. high
作业布置: a（必做）:
b（选做）:
教学反思: 本节课成功之处和亮点：
需要改进和注意的地方：
课题：unit 2 how often do you exercise?共16页，当前第8页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
period 5-6 (section b 2a-2e)
主备人：_ ___________审核人：________________ 审核时间：_________________
等级认定：_____________学科组长签字：___________ 教科室签字：_______________
学习目标【learning objectives】
1.掌握下列单词：result, percent, online, television, although, through,mind, body, such, such as, together, die, witer.
2. 理解2b短文的主旨大意，完成3c 和 3d，掌握文章中的短语、句型。
3.对本课的内容进行归纳、对话改写、及仿写。
重点和难点【important and difficult points】
1.重点：阅读2b，完成3c 和 3d，掌握文章中的单词、短语、句型。
2.难点：对本课的内容进行归纳、对话改写、及仿写。
预习内容【preview contents】
自主预习并完成section b period5 2a-2e的导学单，为上课做好准备。
学习过程【learning process】
一、 预习反馈，明确目标【preview feedback, clear objective】
翻译下列单词及短语
1.结果，后果___________2. 百分之_____________3. 在线，联网的__________________
4. 电视节目______________ 5.尽管_______________6. 凭借，穿过___________________
9.这样的______________10. 像……这样___________ 11. 在一起，共同____________
12. 消失，灭亡____________13.作者，作家____________14.上网____________________
15.百分之十五_______________________16. 一周四到六次__________________________
17. 一点也不______________________18.本性难移_________________________________
二、创设情境，自主探究【create situations, self inquiry】
finish 2c, 2d and check the answers.
三、展示交流，点拨提升【display communication, coaching to enhance】
pairwork: finish 2e with your partner.
四、师生互动，拓展延伸【teacher-student interaction, development】
grammar focus：
1. we found that only fifteen percent of our students exercise every day. percent，名词，意为“百分之……” e.g. eighty percent of the students in our class exercise every day. 我们班里80%的学生每天都锻炼。
【注意】percent做主语时，谓语动词的数要根据其后面的名词来确定。
e.g. fifty percent of the apples are bad. 50%的苹果都坏了。
twenty percent of the meat is in the fridge. 20%的肉都在冰箱。
2.and twenty percent do not exercise at all!
not … at all 意为“一点也不”， not应和be动词、助动词或情态连用。
e.g. the story isn’t interesting at all. 那个故事一点也没有趣。
they didn’t enjoy the vacation at all. 他们根本不喜欢那次旅行。
the old man can’t use the computer at all. 那位老人一点也不会用电脑。
3. although many students like to watch sports, game shows are the most popular.共16页，当前第9页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
although 连词，“尽管，虽然；即使”
e.g. we went fishing although it was cold.尽管天气很冷，但是我们还是去钓鱼了。
注意：although引导的从句不能与but连用。
e.g. 尽管他离家很早，但是他还是迟到了。
although he left home early, but he was late. (×)
although he left home early, he was late. (√)
□my cousin knows a lot about geography, ______ he is only four years old.
a. because b. so c. although
4. …the best way to relax is through exercise. through 介词，课文中意为“以，凭借”
e.g. he found the job through an advertisement in the newspaper.
他通过报纸上的一个广告找到这份工作。
[拓展] through 还有“穿过”之意。表示“从……内部穿过”。
e.g. they went through the forest yesterday. 昨天他们穿过了森林。
5. exercise such as playing sports is fun…
such as意为“像……这样”，表示列举。 结构常为：名词+ such as + 例子
e.g. she likes animas such as rabbits and birds. 她喜欢像兔子、小鸟这样的小动物。
注意：其后面不可列举出所有的事物。如：我了解四种语言，例如英语、汉语。
i know four languages, such as, english and chinese. (√)
i know four languages, such as, english, french, japanese and chinese. (×)
6. old habits die hard. 本性难移。
这是英语中的一句谚语，表示习惯一旦养成，并非朝夕即可改变，多用来
描述人们一时难以改变的固有观念及做法。
e.g. it’s the age of new technology, but my grandpa still goes everywhere with his old radio. old habits die hard, you see. 现在都已经是新技术时代了，可我爷爷仍然到哪儿都带着他的收音机。你瞧，老习惯可真难改呀。
7. so start exercising before it’s too late!
it’s too late 为时太晚；来不及了 e.g. now you know you’re wrong, but it’s too late.
现在你知道你错了，但是已经太晚了。
it’s too late与before共同组成从句，表示“不要等到为时已晚；不要等到来不及的时候；趁着还来得及 ”。e.g. you should work harder before it’s too late to catch up.
你应当更加用功，别等到为时过晚而赶不上了。（你现在用功还赶得上。）
五、达标测评, 巩固提高【evaluation standards，consolidation and improvement】
ⅰ.单选
（ ）1. her father ________ time.
a. usually waste b. never wastes c. hardly ever waste d. always wasting
（ ）2. a: how often does lara play the trumpet?
b: _____ once or ________ a week, i’m not sure.
a. may be, twice b. maybe, twice c. maybe, two times d. may be, two time共16页，当前第10页12345678910111213141516
八年级上册英语Unit2导学练(2019年新人教版)
（ ）3. a: i’ll give the boys _______ to eat. b: oh, i know fish and salad.
a. something healthy b. healthy something c. anything healthy d. healthy anything
（ ）4. what _______ the differences between your habit and _____?
a. are, hers b. is, his c. does, her d. do, his
（ ）5. a: _____ do you write to your parents? b: once a month.
a. how often b. how long c. how much d. how many
ⅱ.阅读理解：
we all need to exercise. doctors say it is good for us. it makes your heart and body strong. it also gives you more energy. and you will feel better about yourself. it's best to exercise twice a week. twenty minutes each time is enough.
there are many ways to exercise. you can walk, run, play sports, or swim. many people go to special places to exercise. they are ca1led "fitness centers." these places have a lot of equipment. some people buy equipment for their homes. but it is very expensive.
exercising can be fun. friends can exercise together at a fitness center. or they can play sports together. how do you exercise?
( )1. what is the main idea?
a. exercise equipment is expensive.
b. playing sports is a good way to exercise.
c. every person shou1d exercise.
( )2. we should exercise ________.
a. every day b. 2o minutes a week c. twice a week
( 3. at fitness centers,________.
a. you can buy expensive equipment
b. people can do many kinds of exercising
c. it is very expensive
( )4. which of these kinds of exercising is not in the article?
a. dancing. b. swimming. c. sports.
( )5. which of these sentences about exercising is true?
a. exercising is expensive. b. exercise is good for your heart.
c. only doctors exercise.
作业布置: a（必做）:
b（选做）:
教学反思: 本节课成功之处和亮点：
需要改进和注意的地方：
课题：unit 2 how often do you exercise?
period 7 (section b 3a-3c)
主备人：_ ___________审核人：________________ 审核时间：_________________
等级认定：_____________学科组长签字：___________ 教科室签字：_______________
学习目标【learning objectives】 共16页，当前第11页12345678910111213141516