has never actually been observed, but is believed to be theoretically possible
is the series of small changes that transforms one species into another
lacks evidence, and therefore should not be considered a scientific fact
is an evolutionary process involving small changes within a species
occurs wherever there are environmental changes in a species' habitat
第1题:
begun to change in the opposite direction
been weakening in strength for a long time
caused the changes on the polarities
misguided many a man and animal
第2题:
drug use
alcohol abuse
abandoning his post
setting fire
第3题:
explains the dysfunctional genes present in hemoglobin
has been proved to be true by scientific investigations
is a theory that lacks sufficient evidence
has never taken place on any scale
provides insight into our biological cousins
第4题:
contemporary art has been nourished by modern science
modern science has been nourished by art
artists can become scientists and scientists can become artists
the impacts of modern art and science are actually mutual
第5题:
have never been so materialistic as today
have never been so interested in the arts
have never been so financially well off as today
have never attached so much importance to moral sense
第6题:
Leonard Fuchs probably never actually saw a fuchsia plant.
Charles Plumier was a student of Fuchs’s at Tubingen.
Plumier’s book of plants included species from the Caribbean.
第7题:
drug use
alcohol abuse
abandoning his post
setting fire
第8题:
对
错
第9题:
their inability has been unable
the inability they possess has not been able
having been unable
they were unable
they have been unable
第10题:
financially responsible for herself
returned to England
supported by her family
trained to be a nurse
第11题:
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 dismissal
presenting a difficulty in one aspect of understanding a theory, suggesting why one solution was dismissed, and then offering evidence to support a new theory
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 accepted
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 hasty
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
第12题:
adjusted
adjusting
adjustment
adjust
第13题:
Fossilized dinosaurs have shown many birdlike characteristics, such as bone structure and winglike arms.
If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out.
Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers.
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.
The thousands of dinosaur fossils excavated by paleontologists represent only a tiny fraction of the billions of dinosaurs that once lived.
第14题:
may not carry on photosynthesis alone
supply food to the fungi
can’t live separately
aren’t recognizable as a species
第15题:
means that one can ignore other people’s criticism
means that one can impose his preferences on others
doesn’t mean that one has the right to do things at will
doesn’t mean that one has the right to charge others without evidence
第16题:
第17题:
how much education one has received
whether one is single or married
how old one’s children are
where one lives
第18题:
exposed cat brains
the human brains
cat brains and the human brains
exposed cat brains and the human brains
第19题:
第20题:
Singapore has lost 28 percent of its native forest habitat since 1819.
Singapore has lost nearly 95 percent of its overall biodiversity since 1819.
All of Singapore’s surviving species are concentrated in one-quarter of the country’s total area.
Most of Singapore’s surviving species are concentrated in land designated as forest reserves.
第21题:
The fossil record is incomplete, so we must supplement it with other evidence.
Our claims about evolutionary processes should be supported with clear evidence.
Humans are no longer closely related to other species on the planet.
Macroevolution has been shown to take place millions of times since life began.
Indisputable evidence for evolution can be found in humans' genetic code.
第22题:
family has deep influence on a person
compliments are very important to a person
one should treasure the relationship between others
when facing tough time, one should never say die
第23题:
how the scientists tried to protect endangered species
how the symbolic endangered species has been chosen
the relation between global warming and endangered species
the problems in and the future of endangered species protection