Tham khảo tài liệu 'revision test 19', tài liệu phổ thông, ôn thi đh-cđ phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | REVISION TEST 19 Exercise 1. Cho dạng đúng của từ trong ngoặc. Weather 1 - create by the heat of the the sun shines on the earth the air close to the surface 2 - heat up expands and rises. The higher it 3 - go the cooler it 4 - become . Meanwhile an area of warmer low - pressure air forms below it. Winds 5 - cause by air moving from an area of high pressure to one of low pressure. The closer the pressure centers 6 - be to each other and the greater the pressure difference between them the stronger the wind 7 - be . High and low pressure air masses travel the globe and cause major weather changes. When a cold high - pressure polar air mass 8 - meet an extremely low - pressure tropical air mass their combination 9 - produce intense storm such as typhoons hurricanes and tornadoes. Less severe weather conditions often 10 -cause by small local pressure areas. A mild rain storm occurs when 11 -rise warm air combines with cool air. Clouds 12 - create as the moist warm air cools and condenses to form water droplets. When clouds reach a saturation point or the point at which they can no longer contain their moisture the droplets 13 - fall to earth as rain or snow. Weather forecasters 14 - look at the movement of warm and cool masses and try to predict how they 15 - behave . Although weather forecasting is completely accurate satellites sophisticated instruments and computers making weather prediction are numbers but in the end nature does what it 16 - please . We may attemp to predict weather but we can t control it. Exercise 2. Chọn đáp án đúng 1. Van Gogh s Sunflowers previous record. A. once sold for B. for sale one million three times the C. selling for once D. for once sold 2. Perspiration increases A. during B. when _ vigorous exercise on hot weather. C. at the time D. for 3. Some people tie a knot in their handkerchief they don t forget something important A. in order B. because C. so as D. so that 4. He drove fast and arrived an hour A. in advance B. .
