閱讀理解SomethingaboutBlackFlowersMostoftheflowersinnatural...
問題詳情:
閱讀理解
Something about Black Flowers
Most of the flowers in natural are red,orange and yellow.If we have seen a black flower,it’s chance in a million.
People have made a census(普查)to colors of more than thousands of flowers and discovered that only eight of them are black.
As we know,sunlight is formed by seven different colored lights.The wave length of each light is different,so the quantity of heat in each light is also different.Flowers,especially their petals(花瓣),are easy to be harmed by high temperature.
Black flowers can take in all the light waves which cause the flowers to dry up in a high temperature.So black flowers can rarely survive(倖存於)sunlight. But red flowers,orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light,orange light and yellow light,each of which has a large quantity of heat.
( )1.According to the writer,it is _____ to see a black flower.
A.impossible B.hard C.common D.no chance
( )2.The underlined word “them” in the second paragraph refers to ________.
A.kinds B.colors C.flowers D.a million
( )3.The passage tells us that __________.
A.black flowers are so weak that it is difficult for them to grow up
B.there are only eight black flowers in natue
C.sunlight is formed by seven different colored lights,so the wave length of each
light is different
D.black flowers can take in the light of all the wave lengths which make them dry
up because of high temperature
( )4.Which of the following ideas is wrong?
A.people have found that only a few kinds of flowers are black.
B.flowers are easy to be harmed by very high temperature.
C.red,orange and yellow flowers can also absorb the light of all wave lengths.
D.the black flowers cannot protect themselves from sunlight.
( )5.The red,orange or yellow light _____.
A.has less heat than the other lights B.has more heat than the other lights
C.also has a great deal of heat D.has a little heat
【回答】
1B 2A 3D 4C 5C
知識點:人物傳記 故事閱讀類
題型:閱讀理解
-
命題“若aA,則b∈B”的否命題是( )(A)若aA,則bB (B)若a∈A,則bB(C)若b∈B,...
問題詳情:命題“若aA,則b∈B”的否命題是()(A)若aA,則bB (B)若a∈A,則bB(C)若b∈B,則aA (D)若bB,則a∈A【回答】B.命題“若p,則q”的否命題為“若﹁p,則﹁q”,故該命題的否命題為“若a∈A,則bB”.知識點:常用邏輯用語題型:選擇題...
-
,飛鳥相與還。 (陶淵明《飲酒·其五》...
問題詳情: ,飛鳥相與還。 (陶淵明《飲酒·其五》)【回答】出師未捷身先死知識點:其他題型:填空題...
-
_______________,聽取蛙聲一片。 (*棄疾《西*月•夜行黃沙道中》)
問題詳情:_______________,聽取蛙聲一片。 (*棄疾《西*月•夜行黃沙道中》)【回答】稻花香裡說豐年知識點:其他題型:填空題...
-
下列各組詞語中加點的字注音完全正確的一項是( )A.吮吸(yǔn)札記(zhá) 艾蒿(hāo)剔除(t...
問題詳情:下列各組詞語中加點的字注音完全正確的一項是( )A.吮吸(yǔn)札記(zhá) 艾蒿(hāo)剔除(tì) 垂涎三尺(xián)B.睥睨(bì) 蠻橫(hèng)自詡(xǔ) 畏葸(xǐ) 聊以慰藉(jí)C.龜裂(jūn)譏誚(qiào)臉頰(jiá)監生(jiàn)戛然而止(jiá)D.蹩進(bì) 瞭望(lià...
相關文章
- 閱讀理解DoyouknowthemovieI,Robot?Ittellsusastoryaboutthefut...
- 閱讀理解。Alotofboysandgirlsinthewesterncountries(西方國家)arewe...
- 閱讀理解WaterPolo(水球)WaterpolocamefromtheLondonSwimmingClub...
- 閱讀理解Idon’tthinkallthechoresareboring,butsomeofthemreall...
- 閱讀理解AFrenchwomangoestoLondontoseeherson.Sheknowsalittle...
- 閱讀理解Weallknowthat70%oftheearthiswater.Butonly1%ofitiscl...
- 閱讀理解。ToysAnno…Theworld’ssmallest,butthemostbeautifulexh...
- 閱讀理解MrStilwelllookedoutofhiswindow.Therewasaboyattheoth...
- 閱讀理解Blackisthecolorofpower(權力).Ithasthemeaningofsubmiss...
- 閱讀理解ThedesignerofAppleComputer,StevenJobs,wasnotquitesu...