三、克漏字測驗
       Extreme heat events are becoming more common allover the world. But besides the effects like sweaty clothesand increased thirst, extreme heat can have several   41.   effects.
       Because of some conditions   42.   by extremeheat, there’s a risk that airplanes won’t be able to take offproperly. You might think it’s because the engines get toohot, but it actually has to do with how air acts when it ishot. The hotter the air is, the less dense it becomes.Because airplane wings can’t operate in air that is below acertain density, when extreme heat lowers the air’s densitytoo much, flying becomes dangerous.
       While extreme heat may keep the sky clear of planes,it will also   43.   the oceans cloudier. That’s because incertain parts of the world, extreme heat caused more rainto fall. This creates larger, faster-moving rivers, whichcarry more dirt with them into the oceans. As the oceansget darker, it gets   44.   for animals that use their sightfor hunting to find enough food to survive.

extreme 極端的；conditions 情況；dense 密度大的；operate 運作；ceratin 某種（些、個）的；density 空氣密度
【題組】41.
(A) surprising
(B) surprises
(C) to surprise
(D) surprised