The first astronauts
Since the earliest times, people have looked up at the stars, the moon and the planets. Today people use modern machines (1) at the sky. This is very different from the situation (2) years ago when people could only use their eyes. Perhaps they dreamed of (3) the universe.
When did humans first go into space? The story began not so very long ago,
(4) the first astronauts were not people﹣they were animals.
Scientists wanted to make travelling to space as (5) as possible for humans. So they decided to experiment with animals and test (6) in spaceflights. Insects, mice, frogs, dogs and monkeys were some of the animals (7) first went into space. Many of them (8) , but they helped to make space travel safer for humans. For their great service, we (9) forget these animals.
Albert Ⅱ was the first monkey to go into space in 1949.Sadly he died (10) his spaceship landed back on Earth.
(11) the result was different for Ham the Monkey. His story ended happily when he return to earth (12) C very good health.
Scientists wanted to know the answer to the important question:could(13) animal like Ham do the same things in space as he could do on Earth? The answer came when Ham (14) into space in 1961. Yes, he did everything well and lived for (15) 16 years.
(1)A. look |
B. to look |
C.looking |
D. looked |
(2)A. thousand |
B. thousands |
C. thousand of |
D. thousands of |
(3)A. explore |
B. to explore |
C.explored |
D. exploring |
(4)A.as |
B. or |
C. but |
D. so |
(5)A. safe |
B. safer |
C. safest |
D. the safest |
(6)A. they |
B.them |
C. their |
D. theirs |
(7)A. whom |
B. what |
C. that |
D. whose |
(8)A. die |
B. died |
C.have died |
D. will die |
(9)A. shouldn't |
B. may not |
C.don't have to |
D. needn't |
(10)A.if |
B.because |
C. after |
D. since |
(11)A. Luck |
B. Lucky |
C. Luckier |
D. Luckily |
(12)A. at |
B. on |
C. in |
D.for |
(13)A. a |
B. an |
C. the |
D./ |
(14)A. send |
B. sent |
C. is sent |
D. was sent |
(15)A. another |
B.other |
C. others |
D. the others |
There is someone knocking at the door.
It must be the repairman. I ______ him to come to fix our fridge two hours ago.( )
A. |
call |
B. |
have called |
C. |
called |
______ exciting the news is! Beijing will hold 2022Winter Olympic Games.( )
A. |
How |
B. |
What a |
C. |
What |
Julia, your mobile phone is ringing.
Wait a minute. It's dangerous ______ it while crossing the street.( )
A. |
answering |
B. |
answer |
C. |
to answer |
Look, what an old bridge! It looks so special!
Yeah, it ______ nearly 500 years ago.( )
A. |
was building |
B. |
was built |
C. |
has built |
Why ______ we close that chemical factory?
Because it has caused lots of pollution. We need better environment.( )
A. |
must |
B. |
can |
C. |
may |