Scientists think that the continents ________ always where they ________ today.
A. aren’t; are B. aren’t; were C. weren’t; are D. weren’t; were
高三英语单项填空困难题
Scientists think that the continents ______ always where they _______ today.
A. aren’t; are B. aren’t; were C. weren’t; are D. weren’t; were
高三英语单项填空中等难度题查看答案及解析
Scientists think that the continents ________ always where they ________ today.
A. aren’t; are B. aren’t; were C. weren’t; are D. weren’t; were
高三英语单项填空困难题查看答案及解析
Scientists don’t think that a warm winter always has a negative influence on our life,____?
A. don’t they B. do they C. hasn’t it D. has it
高三英语单项填空中等难度题查看答案及解析
Policemen think that where there is violence , drugs with damaging effects on kids are always ______ it．
A．beyond B．before C．behind D．besides
高三英语单项填空中等难度题查看答案及解析
（题文）The__________ that there is life on other planets in the universe has always inspired scientists to explore the outer space.
A. advice B. order
C. possibility D. invitation
高三英语单项填空中等难度题查看答案及解析
Where do you keep ice? In die freezer, of course. That's what scientists might have thought when they were looking for a safe place to store ice from mountain glaciers from around the world. They’ve decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt.
Jerome Chappellaz of the French National Centre for Scientific Research is involved in creating an ice vault (地下室）there. He says: “We are probably the only scientific community whose sample (样本) is in danger of disappearing from the face of the planet. If you work on rocks or on tree rings, the raw material is still here and will be for many centuries."
And why do scientists need to study ice from the Alps, for example? Ice formed on the top of a mountain is made of snow accumulated over thousands of years. Trapped air bubbles (气泡) contain samples of the atmosphere that existed when that ice was formed. Ice is a record of climate By examining ice. we know carbon dioxide in the atmosphere is higher now than in the last three million years. Researchers use this kind of data to build computer models and try to predict what might happen in the future.
The ice vault will be housed in a snow cave at the Concordia Research Station, which is operated by scientists from France and Italy. The ice samples will be sealed in bags and placed 10 meters below the surface. at a constant temperature of -50*C. This will put the scientists’ minds at rest. Losing the ice samples would be a disaster, and nobody wants to see a mine of scientific knowledge lost forever in a giant pool.
1.What makes Antarctica a safe place to store ice?
A. Its large mountains.
B. Its function as a freezer.
C. The abundant ice samples there.
D. The absence of global warming.
2.Jerome compares ice with rocks and tree rings to state that_ .
A. it's necessary to store ice
B. it’s more valuable to study ice
C. ice disappears very quickly
D. ice should be stored at home
3.What is the researchers' purpose of studying ice?
A. To learn about climate.
B. To learn about the Alps.
C. To trap air bubbles.
D. To reduce carbon dioxide.
4.What do scientists think of storing ice in Antarctica?
A. They consider it an easy job.
B. They’re not optimistic about it.
C. They think it will cause disasters.
D. They think it’s a reliable way.
高三英语阅读理解中等难度题查看答案及解析
Thinking
| ·Some scientists claim that we humans are the only living things that are conscious(有意识的)—we alone are aware that we are thinking. ·No one knows how consciousness works—it is one of science’s last great mysteries. ·All your thoughts take place in the cerebrum(大脑皮质),which is at the top of your brain,and different kinds of thought are linked to different areas,called association areas. ·Each half of the cerebrum has four rounded ends called lobes(脑叶)—two at the front(frontal and temporal lobes)and two at the back(occipital and parietal lobes). ·The frontal lobe is linked to your personality and it is where you have your bright ideas. ·The temporal lobe is where you hear and understand what people say to you. ·The occipital lobe is where you work out what your eyes see. ·The parietal lobe is where you record touch,heat and cold,and pain. ·The left half of the brain controls the right side of the body.The right half controls the left side. ·One half of the brain is always dominant(in charge).Usually,the left brain is dominant,which is why 90% of people are right-handed. |
1.Which part of your cerebrum is most active when you are making a telephone call?
| A．The frontal lobe. | B．The temporal lobe. |
| C．The occipital lobe. | D．The parietal lobe. |
2.Which of the following statements is true?
| A．One’s personality has something to do with the frontal lobe. |
| B．Bright ideas come from the parietal lobe. |
| C．The occipital and temperal lobes are at the back of the cerebrum. |
| D．The occipital lobe is in charge of sound. |
3.From the passage,we know the reason why around 10% of people are left-handed is that_______.
| A．their frontal lobe is usually dominant |
| B．their temporal lobe is usually dominant |
| C．their right brain is usually dominant |
| D．their left brain is usually dominant |
高三英语阅读理解中等难度题查看答案及解析
Thinking
| ·Some scientists claim that we humans are the only living things that are conscious(有意识的)—we alone are aware that we are thinking. ·No one knows how consciousness works—it is one of science’s last great mysteries. ·All your thoughts take place in the cerebrum(大脑皮质),which is at the top of your brain,and different kinds of thought are linked to different areas,called association areas. ·Each half of the cerebrum has four rounded ends called lobes(脑叶)—two at the front(frontal and temporal lobes)and two at the back(occipital and parietal lobes). ·The frontal lobe is linked to your personality and it is where you have your bright ideas. ·The temporal lobe is where you hear and understand what people say to you. ·The occipital lobe is where you work out what your eyes see. ·The parietal lobe is where you record touch,heat and cold,and pain. ·The left half of the brain controls the right side of the body.The right half controls the left side. ·One half of the brain is always dominant(in charge).Usually,the left brain is dominant,which is why 90% of people are right-handed. |
1.Which part of your cerebrum is most active when you are making a telephone call?
A.The frontal lobe. B.The temporal lobe.
C.The occipital lobe. D.The parietal lobe.
2.Which of the following statements is true?
A.One’s personality has something to do with the frontal lobe.
B.Bright ideas come from the parietal lobe.
C.The occipital and temperal lobes are at the back of the cerebrum.
D.The occipital lobe is in charge of sound.
3.From the passage,we know the reason why around 10% of people are left-handed is that_______.
A.their frontal lobe is usually dominant
B.their temporal lobe is usually dominant
C.their right brain is usually dominant
D.their left brain is usually dominant
高三英语阅读理解中等难度题查看答案及解析
In the frozen continent of Antarctica scientists fear an alien invasion — not from outer space, but carried in people’s pockets and bags.
Seeds and plants accidentally brought to Antarctica by tourists and scientists may introduce alien plant species which could threaten the survival of native plants in the finely balanced ecosystem.
“The people that were carrying the most had lots and lots of seeds. They really were real threats,” said Dana Bergstrom, from the Australian Antarctic Division.
“When we take things in through hitchhiking（搭车旅行） then we get species which are competitive. The plants and animals there are not necessarily competitive, so we’d start losing various precious biodiversity（生物多样性） on the (Antarctic) continent”, Bergstrom told Reuters.
Amongst the alien species discovered were the Iceland Poppy, and Annual Winter Grass — all from cold climates and capable of growing in Antarctica.
The Antarctic Peninsula, where most tourists travel, is now considered a “hot spot” on the frozen continent and the warmer the climate, the easier for seeds to grow. “The peninsula(半岛) is warming at some of the greatest rates on the planet,” said Bergstrom.
The study, the first continent-wide assessment of invasive species in Antarctica, surveyed about 1,000 passengers during 2007-2008, the first year of the International Polar Year, an international effort to research the polar areas.
Bergstrom said the one alien seed that had gained a foothold is Annual Winter Grass. It is a strong weed in the sub-Antarctic and is on the Antarctic island of King George. It has also made its way to the tail part of the Antarctic continent.
1.What does the passage focus on?
A. The human influence on the native plants.
B. The development of native plants.
C. The discovery of new plants.
D. The promising future of tourism.
2.What is the effect of alien plant seeds to Antarctica?
A. They contribute to the biodiversity.
B. They lead to the warming up of Antarctica.
C. They make the native plants more competitive.
D. They break the balance of the natural environment of plants.
3.What can we learn from the passage?
A. The International Polar Year started in 2007.
B. Visitors to Antarctica are mainly scientists.
C. Visitors to Antarctica bring seeds on purpose.
D. Tall Fescue Velvet grass grows well in warm places.
4.What is the purpose of writing the passage?
A. To introduce the native environment of Antarctica.
B. To warn people of the danger of alien plant seeds to Antarctica.
C. To explain the relationship between plants and climate.
D. To give visitors some tips on how to explore Antarctica.
高三英语阅读理解中等难度题查看答案及解析
Just when scientists think they have discovered and recorded every species of insect that crawls the earth they find something new. Earlier this month, Peter Jager, the head of Frankfurt’s Senckenberg Research Institute reported the discovery of a unique eyeless spider.
The creature that has a leg span (跨度) of six centimeters and a body size of just twelve millimeters was found in a cave inside the tiny nation of Laos, in Southeast Asia. It was identified as a member of the Huntsman spider, a large family that consists of 1100 species. However, the other members of the family all have eyes. The spider is the first one that has no eyes. They believe that the kind of spider has adapted to the fact that they do not really need the eyes to such a degree that they have dispensed with them altogether.
But they are not the only creature to have done that. Over the years, scientists have discovered completely blind cave fish, and even a freshwater crab, which happens to live in the same cave as this eyeless spider!
Surrounded by Burma and China on the northwest, Vietnam on the east, Cambodia on the south and Thailand on the west, the landlocked nation of Laos is filled with a large number of new and exotic (新奇的) species. In the last few years researchers have discovered the Saola—never-before-seen antelope-like creature, a small deer species called muntjacs, a tiny stripped rabbit and a rock rat that was thought to have been extinct 11 millions years ago. In addition to that it is also home to over one hundred species of large mammals ranging from tigers to macaques and over 165 species of amphibians (两栖动物) and reptiles like the terrible King cobra and the noisy Tokay gecko, a permanent resident inside most Laos households.
64. 1.Which of the following is the best title of passage?
A．Laos full of a large number of exotic species
B．Laos popular with plenty of strange species
C．Every species of insect discovered and recorded by scientists
D．World’s first eyeless spider discovery in Southeast Asia.
65. 2.What does the second paragraph mainly tell us about the unique eyeless spider?
A．The eyesight, identification and family members.
B．The size, identification and the reason for being eyeless
C．The body, species and living environment
D．The size, identification and the species
66. 3.The underlined part “dispensed with” (in 2nd Para) means _________.
A．got rid of B．put up with C．carried away D．taken no notice of
高三英语阅读理解中等难度题查看答案及解析