What were you doing when the UFO arrived（通用7篇）
八年级（下）英语学案 第17课时
【课题】unit 3 what were you doing when the ufo arrived? reading
【励志小木屋】we always have time enough , if we will but use it aright.
只要我们能善用时间,就永远不愁时间不够用。
【学习目标】
（一）、知识与能力：1.master the words、phases and sentences. 2. 继续学习过去进行时.3.通过运用多种阅读技巧，提高快速准确的筛选文章信息的能力，从而提高阅读水平。
（二）、过程与方法：通过引导学生反复阅读和groupwork掌握阅读策略。
（三）、情感态度与价值观：learn to share information with their partners.
【学习重难点】掌握阅读策略。
一.自主预习：
（一）、预习任务：
task 1: 快速阅读文章，找出每一段的主题句。
paragraph1
paragraph2
paragraph3
paragraph4
task2: 仔细阅读回答问题：
1.why do many people remember what they were doing on april 4, 1968?
____________________________________________________________________
2.what was robert allen doing when he heard the news?
____________________________________________________________________
3. when was the world trade center in new york destroyed by terrorists?
__________________________________________________________________
4.why did yang liwei become a national hero in china?
____________________________________________________________________
task 3: 翻译句子：
1.this was the events in modern america history.这是当代美国历史上最重要的事件之一。
2.we in the playground when the bell rang.
我们正在操场上玩的很高兴时，突然铃响了。
3.our teacher what we were doing and listen.
我们的老师叫我们停下我们正在做的事，听他讲。
4.not all events in history are this.
并不是历史上所有的事情都像这个那么可怕。
5.he became a in china. 他成为中国的民族英雄.
(二)、预习诊断：根据句意和首字母补全单词。
1.paul”s room is b__________with two big windows.
2.we live on the e__________, we must protect it well.
3.in the afternoon they went to an exhibition of ___________(现代的) art.
4.i was reading a novel when the ___________(铃) rang。
5.they walked back home in _____________(沉默)
（三）预习置疑： do you have any questions?__________________
二、课中实施:
step1: warming-up step2: lead-in step3: finish some tasks by reading. step4 精讲点拨 we were having fun in the playground when the bell rang.
1) have fun 意为“玩得高兴，过的快乐”=have a good time=enjoy oneself.
例如：we had fun in the park.=we __________ ____________ in the park.
2) have fun (in) doing sth 意为“做某事很开心”。
试译：我弹吉他很开心。____________________________________________
step5: 拓展延伸：用所给词正确形式填空，每个单词只用一次
among believe seem back balloon study maybe understand answer earth
many people today like reading stories about ufos. many people in different countries are _____the ufos. but what are ufos?there are some different sayings for ufos. ___ __ those sayings, the most popular one for ufo is that they carry visitors coming from other stars. they ____ to fly much faster than planes on the earth.ufo scientists and many people ____ this saying. some people said that they saw a few ufos that landed on the ____ . some people said they saw some strange visitors coming out of the ufos. some even said they were carried away in the ufos, and then were sent _______ by the strange visitors.some people make mistakes when they say they have seen ufos. ___ ___ they see a big ___ _____ or an uncommon plane, or the light they see in the sky comes from the ground. sometimes they see the light from the moon..but there are a lot of things we can’t ____ . now, people still can’t understand ufos clearly. it may take many years to find a clear _____ , and then people will give ufo another name.
step6: summary:
三、限时作业：（满分10）. 得分_______
1、”tom and jerry” is one of _________cartoons i have ever seen.
a. interesting b .more interesting c. most interesting d. the most interesting
2. do you remember _______when i called you last night?
a. what were you doing? b. what you were doing? c .what you did? d. what did you do?
3. i didn’t ___________ __________(听说)the event.
4. _________ _________ _________ __________(并非全部的学生)like english.
5. no one knows_________ ___________ ___________(会发生什么)in the future.
6. we have friends ________ _________ _________ __________(遍天下)。
homework 根据句意及首字母完成句子
1、go and wash your hands in the b .
2、he had many exciting e while traveling in china.
3、we have to s because the music was so loud.
4、there was a traffic a here. luckily, nobody was injured.
5、the boy went into the classroom in s because others are having a lesson.
【学后反思】____________________________________________________
八年级下英语 学案第16课时
【课题】：unit 3 self-check
【励志小木屋】：every man is the master of his own fate.
命运掌握在自己手中。
【预习目标】：
知识目标： 1.识记单词 及短语。 accident, beijing international airport, plane, a car accident,
2.句型 it was raining when the plane landed in london.
能力目标：正确运用过去进行时。
情感态度与价值观 ：能谈论过去发生的事情。
【预习重难点】： 重点 过去进行时 难点 was/ were doing
自主预习
（一） 预习任务 1.完成 part 1
2.写出下列短语 一场车祸___________________ 飞往纽约的航班______________ 起飞_______________ 去医院看望姑妈________________
在医务室____________
3. 完成part 2 .
（二） 预习诊断
1. father _____ still ______（sleep）when i ______（get）up yesterday morning.
2. grandma ________(cook) breakfast while i _____( wash)my face this morning.
3. mother ______（sweep）the floor when i ______（leave）home.
4. the students ______（have）a biology class when the visitors ______（come）.
5. the driver __________（drive）home when it ______（rain）last night.
（三） 预习反思 do you have any questions ?
二.课中实施
step 1 预习交流------ 精讲点拨
at the doctor’s 在医生的诊所， 英语中有时习惯使用名词的所有格来表示该名词生活或工作的地方，例如：at the barber’s 在理发店 at jim’s 在吉姆家 at the teacher’s 在老师的办公室
i was _____ my aunt’s last night. ( 介词填空)
step2 warming-up step 3 lead-in step 4 finish 2
step5语法回顾
1. some students from class four _________（play）basketball when i ______（see）them on the playground.
2. doctor liu was on duty last night. he ______still ______（talk）with his patients in the hospital at 10 p.m.
3. the street seller _______(sell)clothes when he ______(find) a purse
on the ground.
4. mr wang spends a lot of time writing his novel every day. he ______still _____（work）at midnight last night.
5. i ______（read）a history book when someone ______（knock）at the door.
6. masha ______（cook）when the doorbell______（ring）.
step6 系统总结
三、限时作业 满分 10 分 得分 ________
1. linda couldn’t see davy _______（where）.
2. the bus station was _______（crowd）with many people.
3. the girl was _______（shop）while she saw the alien get out.
4.the girl was _______（scare）when she saw the dog.
5. the alien visited the museum of _______（fly）.
6. what ______ you ______ when you father came back?
a. did, do b. are, doing c. were, doing d. do, do
7. ______ the boy was walking down the street, the ufo landed.
a. while b. after c. as d. before
8. what happened while linda was ______ the telephone?
a. in b. at c. on d. into
9. they are waiting ______.
a. at the doctor b. at the doctor’s c. in the doctor d. in doctor’s
10. there is a big tree ______ the house.
a. in the front of b. at the front of c. in front d. in front of
homework
1.just now she saw the man ________ into the room.
a. go b. went c. goes . to go
2. there’s a big tree _______ the building.
a. in front of b. in the front of c. in front d. at the front of
改错 3. the child was shopping while she saw the alien out.
4. grandma was cooking breakfast when t was washing my face this morning.
5. i read a history book when someone knocked the door.
6. what did you do at ten o’clock last sunday morning ?
7. while the alien was in the museum, i was calling the tv station.
8. you can imagine how strange was it.
9. i was playing the guitar at this time yesterday. (提问)
_____________________________________________.
10. she washed clothes last night. ( 改为过去进行时)
__________________________________________________
11.the thief ________ ________ __________ the lift and ran away.(走出)
学后反思：
八年级英语（下）学案15课时
课题：unit3 what were you doing when the ufo arrived? section b
励志小木屋：today must borrow nothing of tomorrow.今日事今日毕。
预习目标：1、知识目标：
2. 能力目标：1）.能联系上下文理解课文 2）.能谈论过去发事情
3）.能利用情景思维 3.情感目标：热爱科学，探索科学。
预习重点：while, when引导的时间状语从句，过去进行时
预习难点：while, when引导的时间状语从句，过去进行时
一、自主预习：（一）预习任务： task1. 英汉互译：
climb a tree_______ be too scared_______ at the doctor’s _____________outside the house _______ 跳下_______ 逃跑，跑开 ____________在火车站_______ 喊某人的名字 _______
task2、通过预习3回答问题
(二)预习诊断：下列各句均有一处错误，请指出并改正
1. the child was shopping while she saw the alien get out.
2. grandma was cooking breakfast when i was washing my face this morning.
3. i read a history book when someone knocked at the door.
4. what did you do at ten o’clock last sunday morning?
5. while the alien was in the museum, i was calling the tv station.
6. you can imagine how strange was it!
(三)预习反思：do you have any question?
二.课中实施：
step1.预习交流 step2. warming-up step 3: lead- in step4 practice
step 5 精讲点拨: what happened while linda was on the telephone?
琳达打电话时发生了什么？
happen 常指具体事件的发生，特别指那些偶然的或未能预见的事件的“发生”eg: a car accident happened yesterday.昨天发生了一场车祸。
如果表示“某人发生了某事”，常用结构“某事+happen(s) +to+某人”
eg: an accident happened to tom yesterday.
sb. happen to do sth. “某人碰巧干某事“
step 5 拓展延伸：词的适当形式填空
1. he ____ for me in the park yesterday.
2. i ___ when i saw a thief in the supermarket.
3. he saw an alien___ the ufo.
4. he____ some fruit from the fruit shop yesterday.
5. the girl_____ dinner when her mother came back.
step 6 summary
三、 限时作业 （每空一分，共10分） 得分率______
选择 1. there is a bird singing____ the green tree. a. in b. on c. into
2. the leaves____ the tree are getting yellow. a. in b. on c. into
3. i can’t find my dictionary_____.
a. somewhere b. anywhere c. nowhere d. not where
4. i ____ a book when he came in.
a, am reading b. am looking c. was reading d was looking
5. ____ coming to ask something about the car accident.
a. a police is b. the police c. the police is d. the police are
6.. what were you doing when your father ____ back from work?
a. was coming b . comes c. came d. is coming
7. masha____ when the doorbell____. a. is cooking, ring b. was cook, rang c. was cooking, rang d. cooked, rang
8. what____ while linda was on the telephone?
a. was happened b. was happening c. happened d. happens
9. ——what_____ you, tim? —— i failed my test. a. happened b. happened to c. was happening to d. was happened
10. did you find your keys____?
a. somewhere b. anywhere c. everywhere d. nowhere
homework: 句型转换
1. i was playing the guitar at this time yesterday？(划线提问)
_____ _____ you _____ at this time yesterday?
2. she washed clothes last night.(改过去进行时)
she _____ _____ clothes last night.
3. he is looking at the souvenirs now. (用now 改写)
he ____ ____ at the souvenirs ____ _____ _____.
4. you’d better go to see her tomorrow.( 改否定句)
you’d ___ _____ ____ to see her tomorrow
5. i think there’s something interesting in his story.( 同4)
i_____ ____ there’s _____ interesting in his story.
学后反思：
八年级下英语学案第14课时
【课题】：unit 3 section a (3a-4)
【励志小木屋】：constant dropping wears the stone. 水滴石穿。
【预习目标】：1.识记p20 单词、短语 2.能够翻译3a. 3.学会讲故事
【预习重难点】：重难点：1.when, while引导的时间状语从句。
2.过去进行时。
一. 自主预习
（一） 预习任务
写出下列短语： 在…..前面___________ 起飞___________ 在图书馆里学习___________________ 买一份纪念品_______________ 一次奇怪的经历_______________ 参加博物馆______________ 沿着大街走________________
报警_________________ 十点钟左右______________
(二) 翻译句子：1. 上午十点钟左右，我正走在街上，突然一节飞碟正好降落在我的前面。__________________________________________
2.看到它走进纪念品商店时，我非常惊讶。______________________________
3. 当它正看那些纪念品时，那家商店的店员给警察打了电话。
4. 当外星人在博物馆时，我给电视台打了电话。
___________________________________________________________________
（二）预习诊断. 词的适当形式填空：
1. i ________(sleep) when i ________ (hear) a knock at the door.
2. when i saw him , he ________ (wait) for the bus.
3. what __________ you _______ (do) at this time yesterday?
4. i __________ (not go ) to the cinema last night.
5. i saw him __________ (play) in the park just now.
6. when you __________(call) me a moment ago , i ________ (write) .
7.they enjoy ________ (live) here very much.
（三）预习反思 do you have any questions ?
二.课中实施step 1 预习交流 step2 warming-up（复习导入）
step 3 lead-in （pictures）step 4 read the massage. step5 pairwork practice 3b
step5 精讲点拨：isn’t that amazing!难道那不令人惊讶吗？
该句是一个否定疑问句。否定疑问句的用法：1. 表示感叹，相当于陈述句，但语气更强烈，感情更丰富。aren’t the flowers beautiful!
2. 也可表示询问，意为“难道不……?”答语在形式上与一般疑问句的答语一样，肯定回答用yes,否定回答用no. 但翻译时， yes 要译成”不”, no要译成“是的”——can’t you speak english?难道你不会说英语？
——yes, i can./no, i can’t不，我会。/是的，我不会。
step 5 拓展延伸：词的适当形式填空
1. this is the very book ____(buy) yesterday.
2. the teacher asked us to put the___(follow) sentences into chinese.
3. they are going to visited the museum of_____(fly)
4.let’s go ____(shop) after school, shall we?
5. i was very____(surprise) when i saw the accident.
step 6 系统总结
三、限时作业 满分 10 分 得分 ________
单选：1 what were you doing____ the accident happened? a. while b. when c. that
2. look! the plane_____. a. is taking off b. was taking off c. looks off
3. while the boy was watching tv, his mother_____.
a. got out b. gets out c. got out of
4. ——what’s this? ——it’s ____ ufo. a. an b. a c. \
5. my mother bought a t-shirt____ me last saturday. a. to b. at c. for
6. ——did you watch the football match yesterday?
—— yes, i did . you know, my brother_____ in the match.
a. is playing b. was playing c. has played d. will play
7.——were you at home at 7 o’clock last night?
—— yes, i ____ a shower at that time.
a. took b. was taking c. was taken d. am taking
完成句子：8. while we ____ ____(交谈) with each other , tom came to us.
9. it was raining hard ____ _____ ____ ____(当我到达)chongqing.
10. i saw him ____ _____ ____(从…..出来) the house and disappear in the darkness.
homework:句型转换
1. the man was shopping when the alien got out.(划线提问)
_____was the man ____ when the alien got out?
2. don’t shout to the little boy.(同义句)
would you please ____ ____ to the little boy?
3. while john was walking to school, he saw a cat in the tree. (划线提问)
_____ ____he see a cat while john was walking to school?
4. he watched tv last night. (用at this time yesterday改写句子)
he____ ____ tv at this time yesterday.
5. my mother was cooking when my father came back. (用while 改写)
_____ my mother _____ ____, my father came back.
学后反思：
八年级（下）英语学案 第18课时
【课题】:unit 3 revision
【励志小木屋】：progress is the activity of today and the assurance of tomorrow .
进步是今天的活动、明天的保证。
【学习目标】：
（一）知识目标：1、master words、phases and sentences.
2、what were you doing when the ufo arrived? i was ………..
（二）能力目标：掌握过去进行时的用法，并能运用过去进行时描述往事。
（三）情感目标：通过本单元学习，让学生在谈论过去的事情中获取成就。
【学习重难点】】区分when and while.
【task 1】: 单词拼写
1. i’d like to cut hair in that shop because the owner is a good _________(理发师).
2. where is my little cat? i can’t find her __________(任何地方).
3. don’t ________(喊叫) aloud in the library.
4. look! the monkey is __________(爬) up the tree.
5. the plane _________(着陆) at 8:00a.m. yesterday.
6. he is helping his mother in the ________(厨房).
7. ---what __________(发生) to the girl last night? ---she met an alien.
8. he is going to have an __________(令人惊讶的) party next sunday.
9. ---where is my brother? --- he is in the ___________(浴室).
10. don’t __________ (跳) down from the high walls.
【task2】根据句意，补全单词，使句子完整，首字母已给出
1、jim likes planes very much, so his father usually takes him to the museum of f .
2、when i saw an a __ come out of the ufo, i was too surprised.
3、when he got home, his mother was busy cooking in the k __ .
4、tom had a very u _ experience yesterday. he saw a ufo.
5、when the baby saw the snake, she wasn’t s __ at all.
6、linda was ill in h ___ last week, but now she is ok.
7、if you visit a place, you should buy some s __ from the shop.
8、i can’t find my pet cat a __ . i think she’s lost.
9、while linda was waiting for the train at the train s , i saw her.
10、he wants to be a newspaper r in the future.
【task 3】单项选择
1.this bag isn’t nice. show me one, please!a.other b.another c.the other
2. i was reading english the teacher came in.a.when b.while c.as soon as
3. mr black is standing the classroom. he is teaching now.
a.in front b.in the front of c.in front of
4. they all got the classroom to play football. a .into b.out c.out of
5. he stood up to see what outside. a.happen b.was happening c.was happened
6. jack when i saw him. a.was in the kitchen b.was cooking c.cooked d.a and b
7. the girl was shopping, the alien got out.a.while b.when c.what d.a and b
8. what he at 9:00 yesterday morning? a.did; do b.was; do c.was; doing
9. we had great fun to our mp3. a.listen b.to listen c.listens d.listening
10. i followed the alien where it was going. a.to see b.saw c.see d.seeing
【复习诊断】短文填空
healthy on dangerous seat carful good buy ride shop leave
two years ago my husband ____ a bike for me. if you live in a town, it is often faster
than a car and don’t have to worry about parking（停车）. you can __ it anywhere.
because it has a ___ at the back and a basket at the front, i can take my small daughter
when it is cold and it is snowing hard. it also can be ____ . you must be _____
on a bike. accidents are not the only problem. one day i went ______ and when i came
back, i couldn’t find my front wheel（轮子）. it was a long walk to the bike shop! nowi have
three strong locks. sometimes my husband uses my bike for short trips. he is not good at ____
bikes, but he says it is _______ than waiting for a bus. he still likes his car for longer trips,
but i think that all this sitting is making him fat. ______ my bike i got a lot of exercise and
fresh air, and makes me feel much ______ .
【限时作业】 满分10分 得分__________
1、go and wash your hands in the b __ .
2、he had many exciting e __ while traveling in china.
3、we have to s because the music was so loud.
4、there was a traffic a here. luckily, nobody was injured.
5、the boy went into the classroom in s because others are having a lesson.
6、the thief __ _ （逃跑）last weekend. he hasn’t been caught by now.
7、she didn’t __ __ （想到）looking outside the station.
8、he likes his mother __ （跟着…做…）go shopping on weekends.
9、dave doesn’t feel well. he was ___ （在诊所里）.
10、the plane that tome took （起飞）just now.
homework
1、the man was reading newspapers when i came in.（就划线部分提问）
the man when you came in?
2、my mother was cooking when i got home yesterday.（改为一般疑问句，并作肯定回答）
your mother when you got home yesterday? yes, she .
3、the alien visited the museum.（就划线部分提问） the alien ?
4、davy jumped and ran with another dog yesterday.（加上at 4:30 改写）
davy and with another dog at 4:30 yesterday.
书面表达（15分）
上周日peter和朋友在公园渡过了一个愉快的周末，请根据下列括号内所给的提示词，发挥你的想像力写一篇60字左右的短文。(peter, get up, park, by bike, boating, drawing, playing games, happily, leave, until, four o’clock)
_____________________________________________________________________________________________________________________________________________________ ____________________________
【学后反思】_______________________________________________________
unit 3 教学设计
一、教学设计思路
结合多媒体（视频、图片、课件等）辅助教学，练习过去进行时；结合学生亲身经历设计活动，练习讲述过去发生的事情。
二、教学目标
(一)知识
1. 掌握如何谈论过去发生的事情：bathroom, bedroom, kitchen, ufo, alien, barber’s chair, cutting hair, climbing, jumping, land, get out of, take off, in front of, scared, what were you doing when ...? i was doing sth. when ...
2. 掌握如何讲故事
(二)能力
能了解有关ufo的基本常识。
(三)情感
热爱科学，积极探索。
三、教学重点
过去进行时。
when, while引导的时间状语从句。
四、教学难点
过去进行时。
五、教学媒体
电脑，投影仪，课件（参考“优秀课件”）
六、教学过程
(一)巧妙导入
给学生放一段ufo的视频，导入话题。
(二)结合实际，巧妙练习
方法1: 学生每人画一幅画，画出想象中的ufo，并画出ufo到来时自己在干什么。之后介绍自己的画。
方法2: 用课件帮助学生练习过去进行时。（参考“优秀课件”）
方法3: 让学生叙述自己昨天晚上做了什么。可以两人一组互相问答，也可以用表格的形式来体现，如：
time(yesterday) your partner you
7:00
8:00
9:00
方法4: 鼓励学生多了解有关ufo的知识，并在课堂上做简单的探讨。
方法5: 询问学生在一些大事发生时正在做什么。
(三)总结延伸
学生每人列一张表，回顾自己过去一周来每天晚上7:00都在做什么。
七、评价方法
评价本单元的教学效果，可以通过以下几点：
(一)学生是否能运用过去进行时谈论过去发生的事情。
(二)学生是否对ufo有基本的了解。
八、板书设计
八年级下英语学案第13课时
【课题】：unit 3 section a (1a-2c)
【励志小木屋】：i don’t think much of a man who is not wiser today he was yesterday如果一个人今天没有比昨天变得更聪明，那我是不会看重他的。
【预习目标】：1.识记p18-19 单词、短语 2.理解一般过去时与过去进行时的区别。3.理解when, while 引导的时间状语从句
【预习重难点】：重难点：1.when, while引导的时间状语从句。
2.过去进行时。
一. 自主预习
（一） 预习任务
1. 写出下列单词、短语： 在图书馆前面_________ 做饭_________ 理发_______ 睡过头________ 在浴室_________ get out of the shower___________ land on________ take off_______
barber shop_________
2.英汉互译：1). they wrote letters to their friends last night .
2). they were writing letters to their friends last night .
3).昨天我们上了一节英语课。_________________________________
4). 昨天八点钟我们上了一节英语课。_________________________________
5).当ufo到达的时候你正在干什么？__________________________________
（二） 预习诊断. 词的适当形式填空：
1.i was in the____(barber) chair. 2. he ____( sleep) late when it arrived.
3. the alien visited the museum of _____(fly).
4. what was the girl doing when the ufo_____ (take) off?
（三） 预习反思 do you have any questions ?
二.课中实施
step 1 预习交流 step2 warming-up step 3 lead-in step4 pairwork
step 4 精讲点拨 : 1. 过去进行时：表示在过去某一时间内正在进行的动作。
构成：was / were + 现在分词
用法：1）过去进行时表现过去某一时刻正在进行的动作。
eg. she was writing a letter when i came in .我进来时，她正在写封信。
2）过去进行时还表示过去某阶段正在进行的动作。
eg. they were waiting for you yesterday . 他们昨天一直在等你。
2. when/while区别 :
_________we were watching the movie ,you closed the door。
we were watching the movie , ___________you closed the door 。
when既可指时间点，也可指时间段。when引导的时间状语从句，主句用过去进行时，从句应用一般过去时。while指一段时间，其引导的时间状语从句，主句用一般过去时，从句用过去进行时，或主从句都可用过去进行时。
step 5 拓展延伸：用when，while填空
1. __________ the alien was in the museum , i called the police .
2. the boy was walking down the street __________ a ufo landed .
3. _____ the alien was visiting the museum , the boy called the tv station .
4. i was cleaning my room ________ the fire broke out .
5. ______ linda was shouting his name , some people looked at her .
6. __________ linda finally saw davy , he was jumping with a dog .
step 6 系统总结
三、限时作业 满分 10 分 得分 ________
单选：1. ——what ____ you ___ at this time yesterday?
——my homework. a. did, do b. are , doing c. were , doing
2.where ___ you___ lunch yesterday? ——at school.
a. did , have b. were, having c. do, have
3.—____ there___ a report on how to learn english tomorrow afternoon?
—— i’m not sure. you may ask dennis.
a. will, have b. is , going to have c. will, be
4.there are some big trees____ our classroom.
a. in front of b. in the front of c. on the front
5. what were you doing____ the accident happened?
a. while b. when c. that
词的适当形式填空：6. while we____(have) dinner, the telephone rang.
7. you are always ____(kid). if you do the same thing again, i’ll be angry.
8. we____(read) books while they___(watch) tv yesterday.
9. ——the telephone is broken.
——it doesn’t matter. maybe you could ____(repair) it by yourself.
10. what ____ you___ (do) when your mother came back?
homework: 根据句意及首字母提示补全单词：
1. i need to cut my hair. do you know where is the nearest b_____ shop?
2. while i was cleaning the room, mum was cooking in the k_____.
3. i don’t believe there are a_____ on the mars.
4. what w______ your parents doing at 9 o’clock yesterday?
5. don’t you think it is a______ to see a ufo land in front of you?
学后反思：
