英语六级过关专项训练―完形填空_大学英语单词

英语六级过关专项训练―完形填空

　　10.A) behave B) imply C) ignore D) list

　　11.A) luxurious B) painful C) attractive D) noticeable

　　12.A) occasional B) free C) accustomed D) popular

　　13.A) familiar B) similar C) regular D) thirty

　　14.A) sport B) astonishment C) rule D) mountaineering

　　15.A) by B) in C) from D) against

　　16.A) admitted B) tracked C) vanished D) linked

　　17.A) obviously B) basically C) already D) conversely

　　18.A) would B) have to C) due to D) be to

　　19.A) mountain B) wind C) nature D) snow

　　20.A) limitation B) division C) goodness D) qualities

　　Key to Test Five

　　1.D 2.A 3.B 4.C 5.A 6.C 7.B 8.A 9.D 10.C

　　11.C 12.B 13.A 14.D 15.B 16.D 17.A 18.B 19.C 20.D

　　Test Six

　　If you stand a short distance away from a high wall and shout, your voice sometimes comes back to you as an echo. This happens because the 1 waves are reflected 2 the wall. This is the principle of radar, 3 instead of sound it is radio waves which are reflected. This 4 was made a few years before the last war,5 radio waves from a transmitting station 6 reflected back from a distant aeroplane.

　　It was realized 7 an apparatus could be devised to send out radio waves 8 and record the 9 from any approaching aeroplanes, it would be a wonderful method of defense 10 war.