14、在太阳周围的八颗大行星,它们是水星、金星、地球、火星、木星、土星、天王星、海王星。
一、填空:
8晶体的形状多种多样,但都很有规则。有的是立方体,有的像金字塔,有的像一簇簇的针……有的晶体较大,肉眼可见,有的较小,要在放大镜或显微镜下才能看见。
第三单元   
22、光的传播速度是每秒钟30万千米,光年就是光在一年中所走过的距离,它是用来计量恒星间距离的单位。
答:最有效的方法就是集焚烧、堆肥、热解、制砖、发电等一体的统合系统,但是焚烧垃圾对空气有污染。
二、问答题:
14、在太阳周围的八颗大行星,它们是水星、金星、地球、火星、木星、土星、天王星、海王星。
3月球是距离地球最近的星球直径大约是地球的1/4,质量大约是地球的1/80,月球体积大约是地球的1/49,月球引力大约是地球的1/6
答:无无味,比空气重,不支持燃烧。特殊疑问词

单词
意思
用法
when
什么时间
问时间
who
问人
whose
谁的
问主人
where
在哪里
问地点
which
哪一个
问选择
why
为什么
问原因
what
什么
问东西
what time
什么时间
问时间
what colour
什么颜
问颜
what about
…怎么样
问意见
what day
星期几
问星期
what date
什么日期
问具体日期
what for
为何目的
问目的
how
…怎么样
问情况
how old
多大
问年龄
how many
多少(可数名词)
问数量
how much
多少(不可数名词)
问价钱
how about
…怎么样
问意见
how far
多远
问路程

练一练
1A: _______ is the boy in blue?        B:He’s Mike.
2A: _______ wallet is it?            B:It’s mine.
3A: _______ is the diary?            B:It’s under the chair.
4A: _______ is the Chirstmas Day?    B: It’s on the 25th of December.
5A: _______ are the earphones?        B:They are 25 yuan.
6A: _______ is the hairdryer?          B:It’s blue.
7A: _______ is it today?              B:It’s Sunday.
8A: _______ was it yesterday?        B: It was the 13th of October.
9A: _______ this red one?            B:It’s beautiful.
10A: _______ is it from here?        B:It’s about two kilometre away.
11A: Can I have some paper and some crayons?
    B: _______ ?                    A: I want to make a kite.
12A:_______ one is fatter, the blue one or the red one?  B: The blue one.
13A:_______ is your cousin?    B: He’s 15 years old.
14A:_______ do you have dinner?  B: At 6 o’clock.
用适当的疑问词填空。
1.             is this?      It’s an onion.
2.             is Sue’s birthday?    It’s on the 1st of April.
3.             is she?      She is Linda.
4.             is the peach?        It’s on the table.
5.             do you go to school?        I go to school by bike.
6.             apples are there?        There are two apples.
7. __        ___ is she?            She’s my sister.
8. _      _____ is the cat?          It’s under the car.
9. __      ____ are these?        They’re moon cakes.
10. __      ____ is your hat?        It’s red.
11. ___      ___ subject do you like?        I like math.
12._        ___ is your birthday?          My birthday is in May.
blue什么特殊意思13.___      ___ do you go home?        I go home by bus.
14.____        _ is Christmas?            It’s in winter.
15.___      ___ do you get at Christmas?      We get presents.
16.___      ___ presents do you get ?  I get  a lot .
17.___      ___ present is this?        It’s Sue’s.
18. ____      __ can we buy Christmas cards?      In a bookshop.
对划系线部分提问
1. It’s a book.                          _____’s this?     
2I can play the flute.                  _______ can you do ?
3We’re flying a kite.              _______  are  you  doing ?
4She’s going to have a picnic.    _____ is  Amy  going to do ?
5It’s twelve o’clock.                    _______ is it?
6It’s blue and red.                      ___________ is it? 
7It’s Monday\ Tuesday \Wednesday…      ______ is today?
8She ‘s very naughty.                    _____ is she _____ ? 
9London is the capital of England  ______ ‘s the capital of England?