Scientistshavefoundthatpesticides(農*)harmtheabilityofbe...
問題詳情:
Scientists have found that pesticides (農*) harm the ability of bees to find food. Bees must learn which flowers contain their food from the smells of the flowers. 41 the bees do not learn which smells mean food, they will starve. Researchers in Britain found that pesticides 42 (use) by farmers and gardeners can switch off the part of a bee’s brain that is responsible 43 associating smells with food. Lead researcher Dr. Geraldine Wright said pesticides could seriously impact the 44 (survive) of honeybee colonies. She said, “Bees that cannot learn will not be able to find food.” This also 45 (mean) bees will not pollinate (給……授粉) crops and wild plants.
Bee populations around the world have been declining. Scientists have searched for a long time for a reason 46 so many bees are disappearing. This new research may be 47 important clue. However, the British government does not want to stop the use of the pesticides that may prevent bees from learning. 48 wants to carry out more tests to make sure pesticides are the real reason for the decrease in the number of bees. A spokeswoman from the Friends Of The Earth charity said the government must act 49 (soon) rather than later. “Bee health is far too urgent to wait 50 more research has been completed. Controls should be placed on these pesticides until bee safety can be guaranteed,” she said.
【回答】
41. If 42. used 43. for 44. survival 45. means
46. why 47. an 48. It 49. sooner 50. until
知識點:短文填空
題型:閱讀填空
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問題詳情: 下列說法正確的是 A.物質發生化學反應都伴隨着能量變化B.伴有能量變化的物質變化都是化學變化C.在一個確定的化學反應關係中,反應物的總能量總是高於生成物的總能量D.放熱反應的發生無需任何條件【回答】A知識點:化學反應中的能量變化題型:選擇題...
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閱讀下文,根據文中的情境,選出依序最合適填入*、乙的選項。(3分)清光四*,天空皎潔, * ,坐客無...
問題詳情:閱讀下文,根據文中的情境,選出依序最合適填入*、乙的選項。(3分)清光四*,天空皎潔, * ,坐客無不悄然!舍前有兩株梨樹,等到月升中天,清光從樹間篩灑而下, 乙 ,此時尤爲幽絕。直到興闌人散,歸房就寢,月光仍然逼進窗來,助我淒涼。 ...
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______Icouldn’tfullyunderstandwhathewantedtoshowinhispa...
問題詳情:______Icouldn’tfullyunderstandwhathewantedtoshowinhispaintings,Ithoughthisworksquiteimpressive. A.As B.Since C.If ...
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下列反應的離子方程式正確的是( )A.在碳**鎂溶液中加入足量Ca(OH)2溶液:Mg2++2HCO3-+C...
問題詳情:下列反應的離子方程式正確的是( )A.在碳**鎂溶液中加入足量Ca(OH)2溶液:Mg2++2HCO3-+Ca2++2OH-=MgCO3↓+CaCO3↓+2H2OB.電解飽和食鹽水:C.過量的鐵與濃**反應: Fe+6H++3NO3-=Fe3+十3NO2↑+3H2OD.向硫*鋁銨[NH4Al(SO4)2]溶液中滴加足量Ba(OH)2溶液 NH4++Al...
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