生理干旱(physiological drought)
土壤干旱(soil drought)
大气干旱(atmosphere drought)
Hurricanes, flooding, droughts, forest fires and other disasters occur more frequently than those in the past.
Heavy rains that fell in early June have eased a prolonged drought.
Trees are useful to man 【B1】______ three very important ways: they provide him 【B2】______ wood and other produces; they help to check soil erosion and they help to 【B3】______ drought and floods.
Experts wrn tht globl wrming will cuse drmtic climte chnges, including more ________ floodsExperts wrn tht globl wrming will cuse drmtic climte chnges, including more ________ floods, het wvesnd droughts. [ ]usul B.frequent C.ordinry D.common
The drought in Europe has brought about all the following problems except .
Questions 14-16 are based on the following passage about the drought. You now have 15 seconds to read Questions14-16.
Even when rain did come following a drought, water could not______ the soil because it was so dry and hard()