In the hills there is a mysterious dark lake, ________ has never been measured.
A.the depth of it B.whose depth
C.its depth D.the depth of whom
高一英语单项填空中等难度题
For years，the giant squid (大王乌贼) had remained a modern mystery.Living in the dark depths of the ocean，the creature is difficult for scientists to observe directly.It had also managed to avoid all attempts to film it.That changed last July：for the first time ever，scientists were able to catch the giant squid on video in its natural habitat.They were amazed by what they saw.The scientists filmed the squid in the North Pacific Ocean，south of Tokyo，Japan.They followed it down to a depth of 2，952 feet.They shot more than 23 minutes of video before the squid swam off into even darker depths.The video footage will be released to the public later this month on The Discovery Channel.
Tsunemi Kubodera，a zoologist at Japan's National Museum of Nature and Science，led the team that filmed the squid.The team went into the ocean in a small submarine with lights invisible to both humans and squid.Since giant squid eat smaller squid，the scientists released a small squid as bait (诱饵)．Then the scientists waited in the pitch black for the giant squid to approach.
The color video shows the creature floating vertically，eating the bait squid.The giant squid is 9 to 10 feet long and is missing its two longest tentacles (触须)．With those tentacles，it could have measured up to 26 feet long.It has huge black eyes，the size of dinner plates，“It was shining and so beautiful，” Kubodera said.
Because the deep ocean is so unfriendly to humans，little is known about the giant squid.Scientists say catching the mysterious creature on video is an important step toward understanding it.For centuries，sailors had reported seeing a huge，ocean－dwelling beast，thought to be the giant squid.The creature is also believed to be the subject of the Nordic myth of the kraken，a sea creature that supposedly attacked ships in Scandinavian waters over the past thousands of years.
1.Why is it difficult to film the giant squid?
A.Because it is illegal to film the giant squid.
B.Because it is too expensive to make such a film.
C.Because the giant squid lives in the dark deep ocean.
D.Because the giant squid is dangerous to humans.
2.We can learn from the first paragraph that scientists ________．
A.first saw the giant squid in the ocean
B.discovered a new sea creature in the ocean
C.have the ocean bottom secretly recorded on video
D.have first caught the legendary giant squid on video
3.According to the passage，the giant squid's longest tentacles can be ________．
A.16 to 17 feet long
B.9 to 10 feet long
C.more than 26 feet long
D.about 36 feet long
4.The scientists released a small squid in the ocean to ________．
A.increase the number of the giant squid
B.trick the giant squid into coming out
C.make an educational film about it
D.show concern for the giant squid
高一英语阅读理解中等难度题查看答案及解析
.
The fresh water in Canada has one-third of the world’s total, much of ____ is in the Great Lakes.
| A．it | B．which | C．that | D．what |
高一英语单项填空简单题查看答案及解析
完形填空（共20小题；每小题1.5分，满分30分）
In the north of Scotland there is a lake called Loch Ness. It is the biggest36 in Britain. It is over thirty kilometers 37 and in some places nearly 300 meters deep . It is cold and dark and not many people went there until after 1930. Then a road was made 38 the lake.
Holiday makers began to use the road, and this was when the 39 began. Someone said that he had seen a monster(怪兽) in the lake. He said it was twelve meters long. It had a long 40 and a small head. Then someone else said he had seen 41 . Others said the same thing and in 1933 a London doctor took a 42 . It43 like a monster with a long neck and a thick body but the photo was not too 44 . The newspapers printed the picture and 45 it the Loch Ness monster, or "Nessie".
Then the argument(争论) began. 46 people, however, were certain there was something living in the lake. Others said there was47 there.
In 1961, a lot of people joined together to make a real 48 to see and photograph the monster to find 49 there was one! Several times people thought they saw something but after ten years there was 50 no real proof (证据).
Later underwater television cameras were used, but 51 found any real proof. However, they 52 find something interesting: a huge underwater cave. It was big enough to be 53 of a monster, but of course, this was not a proof.
In 1975, however, some American scientists54 a search group. They used an underwater camera. It took pictures every seventy seconds. Some of the pictures seemed to show a red-brown creature. Its body was about four meters long 55 had a very ugly head on the end of a four -meter neck. Many people then began to believe in the monster. But even today we can't be certain.
1. A. river B. ocean C. sea D. lake
2. A. wide B. tall C. long D. high
3. A. in B. over C. around D. above
4. A. accidents B. meetings C. sayings D. stories
5. A. eye B. ear C. nose D. neck
6. A. it B. one C. some D. all
7.A. photo B. map C. gun D. chance
8.A. sounded B. looked C. feel D. would
9. A. clean B. clear C. taken D. shown
10. A. called B. believed C. thought D. regarded
11.A. Some B. More C. All D. No
12. A. nothing B. anything C. monsters D. everything
13. A. effort B. thing C. interest D. trip
14. A. so B. but C. as D. if
15. A. even B. still C. also D. yet
16. A. someone B. no one C. anyone D. we
17. A. did B. really C. were D. actually
18. A. room B. house C. home D. ground
19. A. found B. formed(组成) C. invited D. get
20. A. but B. or C. and D. however
高一英语完型填空中等难度题查看答案及解析
How sharks navigate the vast and seemingly featureless ocean has long been a mystery. Now there's evidence they may follow their noses. Sharks rely on their sense of smell to help chart a path through the ever-shifting waters of the deep seas, according to a new study. Scientists have supposed that the animals navigate by monitoring smell clues or the Earth's magnetic field, but no one knew for sure.
In new experiments near San Diego, scientists ferried wild leopard sharks about 6 miles(10 kilometers)away from their preferred habitats, fitted them with tracking devices, and stuffed some of the animals' noses with cotton balls. Just 30 minutes after being released facing the wrong way, sharks with full use of their smells made a corrective U-turn and then headed straight back to shore, "says study leader Andrew Nosal, a researcher at the Scripps Institution of Oceanography, California. Sharks with stuffed noses, meanwhile, "appeared lost, "wandering aimlessly and
swimming more slowly than those that could smell freely.
To test sharks' sense of direction, Nosal and colleagues captured several dozen leopard sharks, a small species found along the coast from Washington State to northern Mexico.
After blocking some of the animals' noses, the scientists then took the animals on a cruise to deeper waters before slipping them, safe and unharmed, back into the sea. Even the sharks with plugged noses made it partway back to shore before their tracking devices fell off. But those with unplugged noses "took very straight paths" toward home. Nosal supposes the sharks likely sniffed out chemical molecules found in higher and higher doses nearer to land.
Other scientists, however, remain unconvinced. Maybe the animals with plugged noses "were confused by the fact that they had something stuffed in their nose," says Kim Holland, a marine biologist at the University of Hawaii at Manoa. It's also unlikely the animals were following a smell that grew stronger closer to land, adds Jayne Gardiner, a sensory biologist at the New College of Florida. Animals that couldn't smell a thing still turned toward the beach, which "suggests something else is really guiding them," she says.
Study leader Nosal responds that sharks with cotton-stuffed nose willingly eat, suggesting that a congested nose doesn't upset them much. He agrees that sharks use a variety of markers to find their way, "but the point is that smell participates in navigation, "he says. "Our study was only the first step in solving this mystery. "
1.This passage is mainly about ________.
A.why sharks have a good sense of smell B.why sharks are clever animals
C.how scientists do the experiment D.how sharks find their way in the vast ocean
2.Which is true about the experiments done by the scientists according to the passage?
A.Scientists plugged sharks' noses to test whether they navigate through their sense of smell.
B.Scientists chose sharks' preferred habitats in order to track the animals easily.
C.After being taken to deeper waters, sharks with plugged noses couldn't make it to the shore.
D.The sharks in the experiments aren't willing to eat due to the plugged noses.
3.We can infer from the passage that________.
A.there are various markers for sharks to find their way and eyes play an important role in it
B.some scientists hold different opinions from the findings of the new study
C.the new study has completely solved the mystery of sharks' easy navigation in the vast ocean
D.the sharks likely sniffed out chemical molecules found in higher doses nearer to land
4.What's the purpose of writing this passage?
A.To call on people to protect the sharks.
B.To present different theories on the mystery of the sharks.
C.To let people learn more about the sharks.
D.To inform the readers of the findings of a new study on shark.
高一英语阅读理解困难题查看答案及解析
In the dark forests , some large enough to hold several English towns.
A.do many lakes lay
B.lie many lakes
C.do many lakes lie
D.many lakes lay
高一英语单项填空中等难度题查看答案及解析
In the dark forests______, some large enough to hold several English towns.
A. lies many lakes B. lie many lakes
C. do many lakes lie D. does many lakes lie
高一英语单项填空中等难度题查看答案及解析
In the dark forests ________, some large enough to hold several English towns.
A．stand many lakes B．lie many lakes
C．many lakes lie D．many lakes stand
高一英语单项填空中等难度题查看答案及解析
In the dark forests ________ ,some large enough to hold several towns.
A. stand many lakes B. lie many lakes C. many lakes lie D. many lakes stand
高一英语单项填空中等难度题查看答案及解析
Although the mysterious castle has disappeared for hundreds of years, it is believed that the _____ of the castle can still be seen at the top of the mountain.
A. remains B. paintings
C. processes D. institutes
高一英语单项填空中等难度题查看答案及解析
____ is certain, though, is that the mystery of Tutankhamun’s tomb has never been fully explained.
A. It B. What C This D As
高一英语单项填空简单题查看答案及解析