网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
According to lines 50－58 of Passage 2, microevolution ______.
A
has never actually been observed, but is believed to be theoretically possible
B
is the series of small changes that transforms one species into another
C
lacks evidence, and therefore should not be considered a scientific fact
D
is an evolutionary process involving small changes within a species
E
occurs wherever there are environmental changes in a species' habitat
参考答案
参考解析
解析：
文中最后一段第一句提到微进化是“the existence of small changes within a species,”这个过程，故选D项。
文中最后一段第一句提到微进化是“the existence of small changes within a species,”这个过程，故选D项。
更多 “单选题According to lines 50－58 of Passage 2, microevolution ______.A has never actually been observed, but is believed to be theoretically possibleB is the series of small changes that transforms one species into anotherC lacks evidence, and therefore should not be considered a scientific factD is an evolutionary process involving small changes within a speciesE occurs wherever there are environmental changes in a species' habitat” 相关考题
考题
According to the passage, early-twentieth-century education reformers believed that ______.A) different groups needed different kinds of educationB) special programs Should be set up in frontier communities to modernize themC) corporations and other organizations damaged educational progressD) more women should be involved in education and industry
考题
Which of the following statements is TRUE according to the passage?___________A.Oceanic salinity has great effect on sea life
B.Many factors combine to cause changes in oceanic salinity
C.The movement of the water is related to the amount of salt
D.The temperature of the water has much to do with the oceanic salinity
考题
You should （）the mooring lines according to the changes of draft.A、adjustedB、adjustingC、adjustmentD、adjust
考题
单选题According to the passage, a “dry” county is most probably a.A
district in which alcohol is prohibitedB
country that is suffering from droughtC
land where it has usually been very dryD
wine that contains little alcoholic content
考题
单选题According to the passage, the Earth’s magnetic field has _____.A
begun to change in the opposite directionB
been weakening in strength for a long timeC
caused the changes on the polaritiesD
misguided many a man and animal
考题
单选题Paleontologists hypothesize that modern birds evolved from the family of dinosaurs that included Tyrannosaurus rex. This hypothesis would be strongly supported if evidence that dinosaurs from this family had a body covering resembling feathers could be found, but so far no such evidence has been found. Which of the following, if true, would most help the paleontologists explain why no evidence of feathered dinosaurs has yet been found?A
Fossilized dinosaurs have shown many birdlike characteristics, such as bone structure and winglike arms.B
If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out.C
Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers.D
Soft tissues such as skin and feathers do not fossilize like bones, and therefore are far less likely to have left permanent evidence in the fossil record.E
The thousands of dinosaur fossils excavated by paleontologists represent only a tiny fraction of the billions of dinosaurs that once lived.
考题
单选题According to the passage, the Concordia´s captain has been charged with causing the crash and______.A
drug useB
alcohol abuseC
abandoning his postD
setting fire
考题
单选题According to the passage, the algae ______.A
may not carry on photosynthesis aloneB
supply food to the fungiC
can’t live separatelyD
aren’t recognizable as a species
考题
单选题The author of Passage 2. most likely thinks that macroevolution ______.A
explains the dysfunctional genes present in hemoglobinB
has been proved to be true by scientific investigationsC
is a theory that lacks sufficient evidenceD
has never taken place on any scaleE
provides insight into our biological cousins
考题
单选题As indicated in the passage, being free personal preference in that _____.A
means that one can ignore other people’s criticismB
means that one can impose his preferences on othersC
doesn’t mean that one has the right to do things at willD
doesn’t mean that one has the right to charge others without evidence
考题
单选题The sentence “But this has rarely been a one-way street.” in the last paragraph means that _____.A
contemporary art has been nourished by modern scienceB
modern science has been nourished by artC
artists can become scientists and scientists can become artistsD
the impacts of modern art and science are actually mutual
考题
问答题练习14 Research has also been done into the way people’s behavior changes in a number of small, apparently unimportant ways when they lie. It has been found that if they are sitting down at the same time, they tend to move about in their chairs more than usual.
考题
单选题According to the author’s observation, college students _____.A
have never been so materialistic as todayB
have never been so interested in the artsC
have never been so financially well off as todayD
have never attached so much importance to moral sense
考题
单选题It is mentioned in the passage that one has to pay tax according to _____.A
how much education one has receivedB
whether one is single or marriedC
how old one’s children areD
where one lives
考题
多选题Consider each of the choices separately and select all that apply. Which of the following inferences can be made the information given in the passage?ALeonard Fuchs probably never actually saw a fuchsia plant.BCharles Plumier was a student of Fuchs’s at Tubingen.CPlumier’s book of plants included species from the Caribbean.
考题
单选题The evidence of electrical activity and other changes in brain cells after the outside stimulus has been got by observing.A
exposed cat brainsB
the human brainsC
cat brains and the human brainsD
exposed cat brains and the human brains
考题
单选题According to the passage, the Concordia’s captain has been charged with causing the crash andA
drug useB
alcohol abuseC
abandoning his postD
setting fire
考题
问答题Practice 11 (1) Research has also been done into the way people’s behavior changes in a number of small, apparently unimportant ways when they lie. (2) It has been found that if they are sitting down at the same time, they tend to move about in their chairs more than usual. To the trained observer they are saying “I wish I were somewhere else now.”
考题
单选题Which of the following statement is true, according to the above message?A
Singapore has lost 28 percent of its native forest habitat since 1819.B
Singapore has lost nearly 95 percent of its overall biodiversity since 1819.C
All of Singapore’s surviving species are concentrated in one-quarter of the country’s total area.D
Most of Singapore’s surviving species are concentrated in land designated as forest reserves.
考题
单选题While several baseball teams have tried to supplant the Yankees as the dominant team in baseball, their inability has been unable to win even half as many World Series as the Yankees have won in the past one hundred years.A
their inability has been unableB
the inability they possess has not been ableC
having been unableD
they were unableE
they have been unable
考题
单选题Both passages suggest which of the following about evolution?A
The fossil record is incomplete, so we must supplement it with other evidence.B
Our claims about evolutionary processes should be supported with clear evidence.C
Humans are no longer closely related to other species on the planet.D
Macroevolution has been shown to take place millions of times since life began.E
Indisputable evidence for evolution can be found in humans' genetic code.
考题
单选题According to the passage, Puritans believed that an unmarried adult woman should be _____.A
financially responsible for herselfB
returned to EnglandC
supported by her familyD
trained to be a nurse
考题
单选题From the passage, we can draw a conclusion that _____.A
family has deep influence on a personB
compliments are very important to a personC
one should treasure the relationship between othersD
when facing tough time, one should never say die
考题
单选题The passage proceeds by ______.A
presenting a difficulty in one aspect of understanding a theory, suggesting why one solution was dismissed, and then looking at a specific example to support this dismissalB
presenting a difficulty in one aspect of understanding a theory, suggesting why one solution was dismissed, and then offering evidence to support a new theoryC
presenting a difficulty in one aspect of understanding a theory, suggesting that another theory is superior, and then showing why this second theory should be acceptedD
presenting a difficulty in one aspect of understanding a theory, suggesting a new theory to explain the evidence, and then offering evidence that the dismissal was too hastyE
presenting a difficulty in one aspect of understanding a theory, suggesting why one solution was dismissed, and then offering evidence that the dismissal was too hasty Questions
考题
单选题The passage is focused on _____.A
how the scientists tried to protect endangered speciesB
how the symbolic endangered species has been chosenC
the relation between global warming and endangered speciesD
the problems in and the future of endangered species protection
考题
单选题You should （）the mooring lines according to the changes of draft.A
adjustedB
adjustingC
adjustmentD
adjust
热门标签
最新试卷
