問題詳情
BHoney(蜂蜜)from the African forest is not only a kind of natural sugar, it is also delicious.Most people, and many animals, like eating it.However, the only way for them to get that honey is to find a wild bees' nest(巢)and take the honey from it.Often, these nests are high up in trees, and it is difficult to find them.In parts of Africa, though, people and animals unexpected helper一a little bird called a honey guide.The honey guide does not actually like honey, but it does like the wax (蜂蜡) in the beehives (蜂)finally arrive at the nest, the follower reaches in to get at the delicious honey as the bird patiently waits and watches.Some of the honey, and the wax, always falls to the ground, and this is when the honey guide takes its share.Scientists do not know why the honey guide likes eating the wax, but it is very determined in its efforts to get it.The birds seem to be able to smell wax from a long distance away.They will quickly arrive whenever a beekeeper is taking honey from his beehives, and will even enter churches when beeswax candles are being lit.
60.Why is it difficult to find a wild bees' nest?
(A)It's small in size.
(B)It's hidden in trees.
(C)It's covered with wax.
(D)It's hard to recognize.
60.Why is it difficult to find a wild bees' nest?
(A)It's small in size.
(B)It's hidden in trees.
(C)It's covered with wax.
(D)It's hard to recognize.
參考答案
答案:B
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
內容推薦
- 58.What does "hands-on science" mean in the last paragraph?(A)Science games designed b
- 31.Larry asks Bill and Peter to go on a picnic with him, but_ of them wants to, because they have wo
- 57.What can kids do at a Youtheater?(A)Look at rock collections.(B)See dinosaur models.(C)Watch
- 30.I _use a clock to wake me up because at six o'clock each morning the train comes by my house
- 第三部分阅读理解(共两节,满分40分)阅读下列短文,从每题所给的四个选项(A, B, C和D)中,选出最佳选项.并在答且卡上将该项涂黑。AAre you looking for some new an
- 29.This restaurant wasn't_ that other restaurant we went to.(A)half as good as (B)as half good
- 針對社經文化地位不利的資優學生進行教學時,下列哪些措施較為適切?甲、提供優勢才能的表現機會乙、安排課業輔導精熟學習策略丙、放寬學業標準激勵學習動機丁、善用同儕輔導與支持的策略(A)甲乙
- 21.对一定量的气体,若用N表示单位时间内与器壁单位面积碰撞的分子数,则(A)当体积减小时,V必定增加(B)当温度升高时,N必定增加(C)当压强不变而体积和温度变化时,N必定变化(D)当压强不变而体积
- 第二节 完形填空(共20小.:每小1.5分.满分30分)阅读下面短文.从短文后各题所给的四个选项《A、B,C和D》中,选出可以填入空白处的最佳选项,并在答题卡上将该项小涂黑。Body language
- 27.Mary is really good at taking notes in class.She can_ almost every word her teacher says.(A)put o
內容推薦
- 62.The honey guide is special in the way_•(A)it gets its food (B)it goes to church(C)it sings in
- 63.What can be the best title for the text?(A)Wild Bees(B)Wax and Honey(C)Beekeeping in Africa(D
- 13.等质量的CuO和MgO粉末分别溶于相同体积的硝酸中,得到的Cu(NO3)2和Mg(NO3)2溶液的浓度分别为a mol•L-1和b mol•L-1。则a与b的关系为(A)a=b (B)a=2b
- 5.下列实验中所用试剂错误的是(A)在观察植物细胞有丝分化瓦解实验中,使用醋酸洋红溶液使染色体着色(B)在提取叶绿体色素实验中,使用丙酮提取色素(C)在DNA的粗提取与鉴定实验中,使用氯化钠溶液析出D
- CAbout twenty of us had been fortunate enough to receive invitations to a film-studio(影棚)to take par
- 14.如图所示,位于光滑固定斜面上的小物块P受到一水平向右的推力F的作用。已知物块P沿斜面加速下滑。现保持的方向不变,使其减小,则加速度(A)一定变小(B)一定变大(C)一定不变(D)可能变小,可能变
- 65.What made the author feel cold?(A)The heavy snowfall.(B)The man-made scene.(C)The low tempera
- 15.一束复色光由空气射向玻璃,发生折射而分为a、b两束单色光,其传播方向如图所示。设玻璃对a、b的折射率分别为na和nb,a、b在玻璃中的传播速度分别为va和vb,则(A)na>nb (B)n
- 9.NA代表阿伏加德罗常数,下列说法正确的是(A)在同温同压时,相同体积的任何气体单质所含的原子数目相同(B)2g氢气所含原子数目为NA(C)在常温常压下,2L氮气所含的原子数为NA(D)17g
- 66.What would happen in the "three minutes" mentioned in the last paragraph?(A)A new s
- 15.一束复色光由空气射向玻璃,发生折射而分为a、b两束单色光,其传播方向如图所示。设玻璃对a、b的折射率分别为na和nb,a、b在玻璃中的传播速度分别为va和vb,则(A)na>nb (B)n
- DGrown-ups are often surprised by how well they remember something they learned as children but have
- 20.处在匀强磁场中的矩形线圈abcd,以恒定的角速度绕ab边转动, 磁场方向平行于纸面并与ab垂直。在t=0时刻,线圈平面与纸面重合(如图),线圈的cd边离开纸面向外运动。若规定由a→b→c→d→a
- 17.图中画出了氢原子的4个能级,并注明了相应的能量E。处在n=4的能级的一群氢原子向低能级跃迁时,能够发出若干种不同频率的光波。已知金属钾的逸出功为22eV。在这些光波中,能够从金属钾的表面打出
- 9.NA代表阿伏加德罗常数,下列说法正确的是(A)在同温同压时,相同体积的任何气体单质所含的原子数目相同(B)2g氢气所含原子数目为NA(C)在常温常压下,2L氮气所含的原子数为NA(D)17g
- 3.图中三条曲线分别代表了动物物种多样性程度、动物数量易变程度及冬眠动物比例在不同类型生态系统中的变化趋势。代表动物物种多样性程度和数量易变程度的曲线依次是(A)①② (B)②③(C)①③
- 68.The author explains the law of overleaming by_________.(A)presenting research findings(B)sett
- 17.图中画出了氢原子的4个能级,并注明了相应的能量E。处在n=4的能级的一群氢原子向低能级跃迁时,能够发出若干种不同频率的光波。已知金属钾的逸出功为22eV。在这些光波中,能够从金属钾的表面打出
- 69.According to the author, being able to use multiplication tables is_______.(A)a result of ove
- 21.图中a、b是两个点电荷,它们的电量分别为QQ2,MN是ab连线的中垂线,P是中垂线上的一点。下列哪种情况能使P点场强方向指向MN的左侧?(A)QQ2都是正电荷,且Q1|Q2|(C) Q1
- 70.What is the author's opinion on cramming?(A)It leads to failure in college exams.(B)It
- 小學、青少年階段身心發展不同,請依該二階段之「身體發展」、「心理認知發展」、「人格與社會發展」等特質加以說明。
- 5.下列实验中所用试剂错误的是(A)在观察植物细胞有丝分化瓦解实验中,使用醋酸洋红溶液使染色体着色(B)在提取叶绿体色素实验中,使用丙酮提取色素(C)在DNA的粗提取与鉴定实验中,使用氯化钠溶液析出D
- 18.己知引力常量G、月球中心到地球中心的距离R和月球绕地球运行的周期T。仅利用这三个数据,可以估算的物理有(A)月球的质量 (B)地球的质量(C)地球的半径 (D)月球绕地球运行速度的大小
- 13.等质量的CuO和MgO粉末分别溶于相同体积的硝酸中,得到的Cu(NO3)2和Mg(NO3)2溶液的浓度分别为a mol•L-1和b mol•L-1。则a与b的关系为(A)a=b (B)a=2b