Light travels at a speed which is about a million times faster than the speed of sound. You can get some idea of this difference by watching the start of a race. If you stand some distance(距离) away from the starter, you can see smoke from his gun before the sound reaches your ears.
This great speed of light produces some strange facts. Sunlight(太阳光) takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays left the moon 1.3 seconds before they reached you. The nearest star is so far away that the light that you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km. per minute. In some cases, the light from one of tonight’s stars had started on its journey to you before you were born.
Thus, if we want to be honest, we can’t say, “The stars are shining tonight.” We have to say instead, “The stars look pretty. They were shining four years ago, but their light has only just reached the earth.”Light speed is ______ sound speed.
| A．as fast as |
| B．a million times slower than |
| C．about millions of times faster than |
| D．about a million times faster than |
If you stand 200 meters away from a man who is firing a gun to start a race, you will find out that ______.
| A．you can hear the sound before you see the smoke |
| B．the sound does not travel as fast as light |
| C．the sound will reach you before the man fires |
| D．sound travels about a million times faster than light |
Sunlight obviously(显然的) ______ than the light of the moon.
| A．has to travel a greater distance |
| B．moves less quickly |
| C．travels much more quickly |
| D．is less powerful |
The scientific way of saying "The stars are shining tonight" should be ______.
| A．the stars have been shining all the time |
| B．the stars seen tonight will shine four years later |
| C．the stars were shining long ago but seen tonight |
| D．the starlight seen today could be seen four years ago |
根据短文内容，判断句子正（T）或(F)。
Dear Linda,
Do you want to know about my family? Well, I have a big family. My grandfather is Li Haitao. He's 60 years old. My grandmother is Huang Yingying. She's 59 years old. I have two aunts and an uncle. They are Li Li, Li Jia and Li Ming. Li Li is in America. She has a daughter. Her name is Rose. She's a three-year-old girl. They often come to Beijing to see us. Li Ming has a son named Li Xiaoping. Li Xiaoping is in England. He is a teacher. My parents are teachers, too. They work in No.1 Middle School in Beijing. I'm in No.1 Middle School, too. Oh, my father is my English teacher.
Yours, Li YinLi Ying is in Beijing.
Li Ying's cousin is in China.
Li Jia has a son named Li Xiaoping.
Huang Yingying is Li Ying's grandmother.
Li Ying is in No.1 Middle School and her mother is her English teacher.
看图选择正确答案。
Bill's family name is .
| A．Brown | B．Green | C．White | D．Jones |
Bill's aunt is
| A．Kate | B．Linda | C．Lisa | D．Lily |
Peter has sons.
| A．one | B．two | C．three | D．four |
Lisa and Lily are Helen's
| A．aunts | B．friends | C．cousins | D．sisters |
Paul is Lisa's
| A．grandfather | B．uncle | C．teacher | D．father |
根据短文内容，完成下列任务。
Hello! My name is David. I’m in Class 3, Grade 7. Here (1)___
our classroom. Thirty-two desks and thirty-two chairs (2) __ in it. Some bags are on the desks. Some books are in the bags. (3) 一些录像带在地板上。 Some plants are near the windows. They are fresh. What’s that ? It’s a map of China. Look! What’s this? It’s a baseball. (4) It’s Jeff’s baseball. It’s (5) under the desk.根据句意填入(1)、(2)处所缺的单词。(1)——(2)——
把(3)处划线的句子翻译成英语。
把(4)处划线的句子翻译成汉语。
对(5)处划线部分进行提问。
回答问题。
—Where are the 32 desks and the 32 chairs?
一They are______．
根据短文内容，判断下面句子正(T)、误(F)。
This is a picture of a classroom. The classroom is big and clean. You can see a teacher’s desk, five desks and six chairs. You can see a girl and a boy, too.
Three books are on the teacher’s desk. A pencil case is on the desk. Two pens and two rulers are in the pencil case. A school bag is behind a chair. A ball is on the floor.
The girl is Lucy, and she is eleven. The boy is Mike, and he is twelve. They are in Class Two, Grade Seven. They are friends. Their teacher is Miss Green. She is not here.It’s a picture of a school.
You can see a girl and a boy in the picture.
Two books are on the teacher’s desk.
Lucy is twelve years old.
Lucy and Mike are in Class Two, Grade Eight.
It is a photo of __ bedroom.
| A．Sally’s | B．Tommy’s |
| C．Tommy’s brother’s | D．Tommy’s sister’s |
The desk is
| A．behind the bed |
| B．not in the room |
| C．near the window |
| D．beside the bed |
You can’t see ___ in the photo.
| A．the math book |
| B．the baseball |
| C．the English dictionary |
| D．the computer |
The bookcase in the photo is __
| A．black | B．white | C．orange | D．blue |
Which is NOT true (正确的 )?
| A．Two dictionaries are on the bookcase. |
| B．The pens are in the pencil case. |
| C．The backpack is under the chair. |
| D．The baseball is Tommy’s brother’s. |
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