The first astronauts
Since the earliest times, people have loop 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 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. Luck C. Luck 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
John suddenly jumped off the swing without even slowing down. He called out nervously,”Mom, where's Charlie? "He had just 16 he hadn't seen his new puppy for over an hour.
John loond the garden, behind the bushes, and under the picnic table. No dog! His mother heard 17 in his voice as he called her a second time. " Mom, I can't find Charlie!"
She came outside 18. "Let's loond the garden first. Don,t worry. I'm sure he's close by.
Both son and mother were 19 now, but still no Charlie. Their calls were not completely wasted, though. Joe, the next-door neighbor, and his two daughters Tania