45. The author’s purpose of writing this passage is to ____.

39. How do the Germans plan to deal with space junk?

28. —Did you enjoy yourself last night?—It’s very nice of you. I highly appreciate ____ to the party.

37. Why is space junk considered a problem?

17. Leave your key with a neighbor ____ you lock yourself out one day.

49.    , drink-making techniques, equipment and packaging are exhibited in the exhibition.

1听力

Part Ⅰ Listening Comprehension ( 15 Points )Directions: This part is to test your listening ability. It consists of 3 sections.Section ADirections: This section is to test your ability to understand short dialogues.There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. Both the dialogues and questions will be spoken only once. When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.1. 

23. The letter is from my sister, ____ is working in Beijing.

50.The organizing committee of the exhibition is   50  .

66. Great writers are those who not only have great thoughts but also express these thoughts in words which appeal powerfully to our minds and emotions. This charming and telling use of words is what we call literary style. Above all, the real poet is a master of words. He can convey his meaning in words which sing like music, and which by their position and association can move men to tears. We should therefore learn to choose our words carefully and use them accurately, or they will make our speech dull. 

19. Only when your identity has been checked ____.