I. Choose the word whose underlined part pronounced differently from that of the others. 1 a. planet b. adventure c. galaxy d. solar 2 a. surface b. trace c. danger d. space 3 a. terrorist b. trek c. Venus d. Neptune II. Choose the word whose main stress pattern is not the same as that of the others. 4 a. adventure b. messenger c. poisonous d. Jupiter 5 a. alien b. planet c. explore d. weightless III. Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence. 6 Scientists claimed that there __________ eight planets in our solar system. a. are b. were c. was d. is 7 This water is __________ poisonous that people here can’t drink. a. too b. so c. enough d. such 8 I love __________ at pictures of the galaxy very much. a. seeing b. watching c. looking d. viewing 9 Space __________ is the main vehicle for astronauts to travel on the Moon. a. buggy b. system c. surface d. planet 10 I’m curious about the __________ space of the Earth. a. alien b. weightless c. outer d. poisonous 11 The atmosphere on Mars is quite similar __________ that on Earth. a. to b. on c. at d. with 12 Have you ever seen a flying __________? a. danger b. saucer c. outer d. painter 13 Neil Armstrong is considered as the first person __________ on the Moon. a. step b. steps c. stepping d. to step 14 I can’t stand __________ with such a talkative person like her. a. talking b. talk c. talked d. to talk 15 There have been some traces proving the __________ of aliens. a. exist b. existence c. existing d. existed 16 It was so kind of him __________ me when I was homeless a. accommodate b. to accommodate c. accommodating d. accommodated 17 Our lives are in __________ because of pollutions a. danger b. saucer c. surface d. system 18 The astronaut wears a __________ to protect him from the dangers of being outside in space. a. spacesuit b. swimsuit c. suit d. sleeping bag 19 Scientists think it is possible to send humans on a __________ to Mars by the 2030s. a. weight b. buggy c. mission d. trace 20 “What subject do you find the most difficult?” My mother asked. My mother asked what subject ____________ the most difficult. a. do you found b. I found c. did I find d. did I found