A.a-b-c
B.b-a-c
C.b-c-a
D.c-a-b
9.What does the underlined word"it"in Paragraph 4 refer to
A.The Earth.
B.Gliese 581g.
C.The Sun
D.Gliese.
10.Which of the following is TRUE
A.A year on Gliese 581g is 365 Earth days.
B.Water is the most important for life on a planet.
C.The temperature of Gliese 581g is colder than Antarctica.
D.Nowadays,astronomers have found nearly 400 new stars with planets.
11.What's the main idea of the text
离日大共国方鸣
A.Water,air and rock are important.
个国的的者A,商面圆
B.Gliese 581g is already a new Earth.
C.There are some planets like our Earth.
D.Astronomers are looking for a new Earth.
0200g之型日
D
How was your sleep last night Sleep is important for health.How can we
have healthy sleep 12.
Wake up naturally
13.
Studies show that when you get shocked by the alarm,your
breathing will go up,your heart will have more beats and your blood pressure will
rise.
"This is a very unhappy way to start the day,"sleep scientist Whitney Roban
said."You'll feel worse if you go back to sleep a few more minutes.It's important
to follow your body's natural sleep-wake cycle(循环).”
So what should we do 14.
Or leave a crack(缝隙)in the curtains
(窗帘)一the rising sun will wake you up.sae
Sleep early and get up early
Some young people may go to bed late and get up late,such as sleeping from
2 am to 10 am.They think as long as they have eight hours of sleep,everything
will be fine.
15
They use light and temperature to do so.If we wake up too late,
our bodies might feel stuck between sleep and being awake.That's why sometimes
we feel even more tired after oversleeping.
根据短文内容，从下列选项中选出能填入文中空白处的最佳选项，选项中
八年级英语试题算4页（共8页）
