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. C5. BⅡListen again.① article② important③ widespread④ impression⑤ responsible for Ⅲ. Listen and repeat1. This simply wouldn’t happen if people were using stomper board.2. Crop circles have been documented in more than 29 countries. 3. This is serious error in judgment on the part of this newspaper.4. They are not the result of visits by extraterrestrial beings.5. I discovered a Website that describes exactly how to make crop circles. Unit 10 Ⅰlisten to the passage.1. place hightech weather probes。 collect the information。 2. directly in the path。 3. wind velocity。 does most of the damage4. upper part。 bottom5. a better chance of surviving ⅡListen again.① June 11② 5③ 16 one thousandth/ ④ 115⑤ 200Ⅲ. Listen and repeat1. They place hightech weather probes in the paths of tornadoes.2. This enabled them to illustrate exactly what happens inside of a tornado.3. This is part of the storm which actually does most of the damage.4. The winds in this area of the storm are the strongest.5. Scientists were then able to accurately determine the velocity of the objects