The moon is the earth's largest and only natural satellite. A satellite is a small body that goes around a
planet. The first man-made satellite went into the orbit in 1957. By 1968 there were over three hundred
satellites in the orbit. Some satellites send back weather pictures. Others send out radio waves. Some
satellites are what we call "junk". In 1963, the United States put millions of small pieces of wire into orbit.
They were used to carry radio waves. Many of these wires may still be there. Some space junk was not
put in the orbit. For example, one piece of space junk is a glove lost by an astronaut!
     Space is very big. Does it matter if there is junk in the orbit? Many scientists think so. They say we
must pay much attention to how we use this new resource. They think anything man puts into space
should be made to come back to earth when its work is done. They say it's dangerous to have space junk,
because it's possible for spacecraft to collide with the junk.

1. The first man-made satellite was sent up into space in _____.

A．1957
B．1963
C．1968
D．1975

2. There were           satellites in orbit by 1968．

3. The underlined word "junk" in the first paragraph means _____.

A．飛行物
B．隕星
C．天體
D．垃圾

4. Lots of scientists think that all the space junk should be          .

A．kept in space
B．used to do something for humans
C．made to come back to earth
D．put together

      Have you ever noticed an advertisement which says "Learn a foreign language in six weeks, or your
money back! From the first day your pronunciation will be excellent. Just send…" and so on? Of course,
it never happens quite like that. The only language that is easy to learn is the mother tongue. And think
how much practice that gets! Before the Second World War people usually learned a foreign language in
order to read the literature (文學(xué)) of the country. Now speaking the foreign language is what most people
want. Every year many millions of people start learning one. How do they do it? Some people try at home,
with books and tapes; some use radio or television programmes; others go to evening classes. If they use
the language only two or three times a week, learning it will take a long time, like language learning at school.
A few people try to learn a language fast by studying for six or more hours a day. It is clearly easier to learn
the language in the country where it is spoken. However, most people cannot afford this, and for many it is
not necessary. They need the language in order to do their work better. For example, scientists and doctors
mainly need to be able to read books and reports in the foreign language. Whether the language is learned
quickly or slowly, it is hard work. Machines and good books will help, but they cannot do the students work
for him.

1. In the advertisement it is possible for a person to learn a foreign language ______.

A. more than two month
B. half a year
C. six months
D. less than two month

2. Before the Second World War people learned a foreign language in order to ______.

3. The easiest way for us to learn a foreign language is ______.

A. using the language six or more hours a day
B. learning the language at school
C. studying the language in the foreign country
D. reading the foreign stories as many as possible

4. Most people now learn a foreign language to ______.

A. read books and reports in a foreign language
B. talk to foreign friends
C. go to the other country to learn a language well
D. try their best to work better

A. the more you spend, the quicker you'll learn the language
B. it is possible for you to learn a foreign language in six weeks
C. it is not good for you to learn a foreign language by yourself
D. the quicker you learn a foreign language, the more you must pay for it