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Do you live in a city?Do you know h________1 cities began?Long, long ago, there were o________2 a few thousand people in the world．These people moved from place to place．They moved over the land, hunting(捕猎)animals for f________3．
No one k________4 how or where these people learned to grow food．But when they did, their l________5 changed．They did not have to look for food any l________6．They could stay in one place and grow it．
People began t________7 live near one another．And so the first villages g________8．Many people came to work in the villages．These villages grew very big．
When machines came along(出现), life in the villages c________9 again．Factories were built．More and more people lived near the factories．The cities grew very big．
Today, some people are m________10 back to small towns．This is strange, isn’t it?
根据课文回答问题。
Students will be very relaxed when they study on Mars, won't they?
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Living on Mars would be like living on avery high mountain. There would be little air.The temperature might be 50 degrees abovezero at noon and 140 degrees below zero atnight. Many people think there may be plantson Mars. We know that on Mars there is carbon(碳). This is a kind of material found in allplants and animals on the earth. Through atelescope, Mars looks red. In some places, itseems gray. At times the gray color turnsgray-green, then brown, then gray again. Thegray-green color may be a kind of plant.
Will men go to Mars one day? If they do,they must take enough oxygen, food andclothing with them.
( ) 1. There is enough oxygen for us to live on Mars.
( ) 2. It‘ s too hot in the daytime but it’s too cold at night on Mars.
( ) 3. We can find carbon in all plants and animals on the earth.
( ) 4. Sometimes Mars looks blue.
( ) 5. If one day we can go to Mars, we must take enough oxygen, food and clothing with us.
According to Harris’ Internet blog, Astronaut Abby, she has wanted to be the first astronaut to walk on Mars since she was 5 years old.
Harris wrote that at the beginning, most people didn’t take her dream seriously. But she stuck with (坚持) it.
“I made plans, I worked hard and I focused on (集中于) my goal. As I got older and continued to stay focused on science, people in my life began to notice and encouraged me to dream big,” she wrote.
In the 7th grade, Harris was doing a project on the International Space Station. She set up a Twitter account to get in touch with NASA. But soon she found that it was a great place for her to write about her dreams and talk with others who are interested in space. Her friends on Twitter then helped her create her website and blog, Astronaut Abby.
What’s more, Harris has a real astronaut as her mentor. Several years ago, Harris ran into Italian astronaut Luca Parmitano at an airport. They talked for an hour and Parmitano agreed to become her mentor. Now Parmitano is in the International Space Station. Harris e-mails him every day to learn about his experiences.
It’s not easy to become an astronaut, but Harris is confident about herself.
“If you work really hard at something, it can happen. And it will happen,” she said.
小题1:What’s the meaning of the word “mentor” (in paragraph 6) ?
| A．朋友 | B．导师 | C．徒弟 | D．助手 |
| A．learn more about space | B．make more friends online |
| C．tell others about her dream | D．introduce her website and blog |
| A．In Italy. | B．On the street. |
| C．At an airport. | D．In the International Space Station. |