Many science fiction stories tell about explorers arriving in a new world. The explorers then use some kind of high-tech device to test for breathable air or signs of life. But here on Earth, science fiction is becoming reality through a new sampling technology called environmental DNA, or e-DNA for short. Scientists can use it to identify rare species or estimate fish populations with just a little air or water.
Environmental DNA can be used in two ways. One is to identify the creatures that live in a certain place. The other is to confirm the presence or lack of a specific creature.
Caren Goldberg is one of the first biologists in the northwestern United States to take the technology from the testing stage to actually using it. She sees e-DNA as a way to get answers more efficiently, and with less destruction compared to traditional survey techniques. Until recently, scientists depended on diving deep, netting or using an electric current to temporarily catch fish.
This newer way to identify what lives in the environment is becoming popular around the world. Animal experts in Vietnam are using the e-DNA to find the last, wild Yangtze giant softshell turtles. One researcher on the Caribbean island of Trinidad is using the sampling technology to find endangered golden tree-frogs. And in Madagascar, it is being used to identify amphibian (两栖动物) diseases.
Ms. Goldberg has used e-DNA testing to confirm the local extinction of a leopard frog in the American state of Idaho. She has also been asked to document the spread of the New Zealand mud-snail in the state of Washington. The creature has been found in lakes and other waterways across the state.
Scientists working with the technology say they do not expect robots to replace field biologists anytime soon. But the old-fashioned field work could soon be more targeted.
1.By using e-DNA, Caren Goldberg has ________.
A.succeeded in catching many fishes.
B.found the existence of golden treefrogs.
C.documented the spread of softshell turtles.
D.proved the disappearance of the leopard frog in Idaho.
2.What can we infer from the last paragraph?
A.Robots will replace scientists soon.
B.Some scientists are against using e-DNA.
C.The old-fashioned field work may disappear.
D.Many biologists are unwilling to do the field work.
3.The passage can be sorted as a(n) ________.
A.science fiction B.experiment report
C.science report D.bio-diversity discovery
高一英语阅读理解中等难度题
Many science fiction stories tell about explorers arriving in a new world. The explorers then use some kind of high-tech device to test for breathable air or signs of life. But here on Earth, science fiction is becoming reality through a new sampling technology called environmental DNA, or e-DNA for short. Scientists can use it to identify rare species or estimate fish populations with just a little air or water.
Environmental DNA can be used in two ways. One is to identify the creatures that live in a certain place. The other is to confirm the presence or lack of a specific creature.
Caren Goldberg is one of the first biologists in the northwestern United States to take the technology from the testing stage to actually using it. She sees e-DNA as a way to get answers more efficiently, and with less destruction compared to traditional survey techniques. Until recently, scientists depended on diving deep, netting or using an electric current to temporarily catch fish.
This newer way to identify what lives in the environment is becoming popular around the world. Animal experts in Vietnam are using the e-DNA to find the last, wild Yangtze giant softshell turtles. One researcher on the Caribbean island of Trinidad is using the sampling technology to find endangered golden tree-frogs. And in Madagascar, it is being used to identify amphibian (两栖动物) diseases.
Ms. Goldberg has used e-DNA testing to confirm the local extinction of a leopard frog in the American state of Idaho. She has also been asked to document the spread of the New Zealand mud-snail in the state of Washington. The creature has been found in lakes and other waterways across the state.
Scientists working with the technology say they do not expect robots to replace field biologists anytime soon. But the old-fashioned field work could soon be more targeted.
1.By using e-DNA, Caren Goldberg has ________.
A.succeeded in catching many fishes.
B.found the existence of golden treefrogs.
C.documented the spread of softshell turtles.
D.proved the disappearance of the leopard frog in Idaho.
2.What can we infer from the last paragraph?
A.Robots will replace scientists soon.
B.Some scientists are against using e-DNA.
C.The old-fashioned field work may disappear.
D.Many biologists are unwilling to do the field work.
3.The passage can be sorted as a(n) ________.
A.science fiction B.experiment report
C.science report D.bio-diversity discovery
高一英语阅读理解中等难度题查看答案及解析
Could you recommend me _______?
A. which science fiction story should I read
B. that science fiction story should I read
C. which science fiction story I should read
D. that science fiction story I should read
高一英语单项填空简单题查看答案及解析
Science fiction writers often write about _______will happen in “tomorrow’s world”.
A. why B. that C. what D. how
高一英语单项填空中等难度题查看答案及解析
This little story I’m about to tell you happened when I was about 11 years old, and I’II never forget it. I was at my friend Jenny’s __41__ after school one day, and we were doing (or not doing) homework.. __42__ I was there, Jenny’s mom came over to visit.
I don’t remember her name__43__ what her face looked like. I just remember her hands, her voice and the__44__ she taught me.
I can still see her hand __45__ for mine in our introduction. __46__ were so beautiful, I thought; rich, dark skin__47__ complemented(涂了) by the orange colored polish on her nails. Then I __48__ her saying, and not at all in a condescending(居高临下的) __49__ .“Oh no, that is NOT how you shake hands. Let me show you _50___.”
After that, I just remember her voice __51__ the importance of a good handshake, conveying(传递) a positive sense of self, looking at _52___ person in the eye, making that first moment matter…I think in that exchange I first understood__53__.
I respected her for __54__ the time to teach me about one of those subtleties(细微之处) in life. I appreciated the fact __55__ she didn’t look down upon me because I was 11 or because I didn’t know something. And so because of that I felt somewhat respected. I mean the _56___ she treated me. It felt good to be __57__ like a real person. I also appreciate her idea that _58__ someone doesn’t pay attention to something, be patient and point him or her__59__ the right direction. I__60__ her every time I meet someone and shake hands. And I’m so thankful for her little lesson.
1. A.office B.house C.family D.room
2. A.Although B.As C.During D.If
3. A.and B.but C.even D.or
4. A.homework B.English C.lesson D.knowledge
5. A.reaching down B.reaching up C.reaching out D.reaching far
6. A.It B.That C.These D.They
7. A.patiently B.beautifully C.strongly D.thickly
8. A.listened B.found C.heard D.saw
9. A.manner B.means C.method D.voice
10. A.that B.it C.how D.what
11. A.explains B.explained C.explain D.explaining
12. A.the other B.other C.another D.others
13. A.politeness B.saying C.friendship D.respect
14. A.costing B.spending C.taking D.using
15. A.what B.which C.that D./
16. A.place B.position C.way D.time
17. A.talking about B.talked to C.talking to D.talked about
18. A.as soon as B.as long as C.once D.if
19. A.from B.at C.in D.to
20. A.think over B.think of C.think about D.think out
高一英语完型填空中等难度题查看答案及解析
I want to tell you a story that changed my life many years ago. We were living in College Station, Texas and my wife and I were on our way home from Houston, Texas one Saturday morning. We decided to stop at a local restaurant to get something to eat since we had enough time. When we finished, we got back into our car and before I started it, we noticed a homeless man standing in front of the building. His clothes were worn and it looked as though he didn’t have any money. It was cold and I was sure he wanted something warm to drink; however, it was not this that I remember, because that is not what "moved" me. A dog was also walking up to the front of the building. Being a dog owner, I knew that the dog was a mother, and that she had just had some pups (小狗). She was hungry and weak and I felt bad for her. I knew if she didn’t eat soon, she and her pups would not live. People walking by didn’t even notice her. She was not as pretty and clean as most dogs, but she still deserved (值得) better. We still did not do anything, but someone else did. The homeless man, who I thought could not afford anything to eat, went into the store and bought dog food with all the money he had.
1.Where did the story happen?
A.In front of the local restaurant.
B.In front of a building.
C.In the car parking lot.
D.Near the author’s house.
2.What do we know about the dog?
A.The author wanted to help the dog, but he was un-able to.
B.The dog and her pups were in danger of dying from hunger.
C.The dog was not cute enough to be loved.
D.The author didn’t like dogs.
3.Which of the following moved the author?
A.The homeless man had no money to buy food for himself.
B.The homeless man wore worn clothes on cold days.
C.The homeless man bought food for a dog with all his money.
D.Most people walking by the dog didn’t notice her.
4.What can we conclude(得出结论) from the passage?
A.The author was so hungry that he went into the local restaurant to eat.
B.The author didn’t understand what the homeless man did.
C.The dog shouldn’t be taken care of carefully because it looked ugly.
D.Things are not always what they seem.
5.Which of the following would be the best title for the passage?
A.My Memory B.A Poor Dog
C.The Homeless Person D.A Mother Dog
高一英语阅读理解中等难度题查看答案及解析
The old man was telling a funny story, surrounded by many kids, _________ with fascination.
A. all of whom listened B. all of whom listening
C. all of them listened D. all of them were listening
高一英语单项填空中等难度题查看答案及解析
Home Alone is a very funny 1990 American film. It tells us a story about a boy who is accidentally left alone at home.
One night before Christmas, the McAlister family meets at their house. They are planning to fly to Paris for the holiday and are busy getting ready. Eight-year-old Kevin is the youngest child and is fighting with his brothers, sisters and cousins. When he goes to bed, he is so angry that he wishes all his family would go away. In the morning, everyone wakes up very late. They are all in a hurry to get to the airport, so they forget Kevin and he is left alone at home by accident.
Although Kevin is alone, he is very happy at first. His terrible family has gone--- his wish has come true. He watches TV, eats lots of fast food and plays games. He has a good time. But later on, he goes out and hears two bad men called Harry and Marv planning to steal from his house. He goes home and plans some very funny ways to catch Harry and Marv. Many things in the house gets broken as Kevin tries to stop them. Finally, the police come and the men are taken away.
The house is now in a mess, so Kevin tidies it up and waits for his parents. They get back from Paris and are very happy to find that Kevin is safe.
1.Why does Kevin think his family are “terrible” at first?
A. Because his family are busy preparing for the holiday.
B. Because he is angry with his brothers, sisters and cousins.
C. Because his family wakes him up late.
D. Because he is left alone at home.
2.What doesn’t Kevin do when he is alone at home?
A. Going to the police station.
B. Eating fast food.
C. Playing games.
D. Stopping the thieves from stealing.
3.When Kevin’s family come home, they find _______.
A. the house is in a mess
B. two bad men are at their home
C. Kevin is safe
D. Kevin is gone
4.What is the best title of this passage?
A. Eight-year-old Kevin
B. Family on Holiday
C. Two Bad Men Caught by a Boy
D. Home Alone --- A Funny American Film
高一英语阅读理解中等难度题查看答案及解析
I drove a school bus as a part-time job. Thirty-nine children all had stories to tell me about their summers. Charlie though __16__me. From the first day on Charlie was __17__. If a fight broke out I didn’t have to turn my __18__to know who had started it. If a girl was crying chances were that Charlie had __19__ her hair. No matter how I spoke to him gently or __20__ he wouldn’t say a word. He’d just __21__ me with those big gray eyes of his. One day I found a small tin heart (小锡心 )on the bus was gone. “Does anyone know __22__happened to the little heart here” I asked. Some children cried “Charlie __23__it Search him” When I asked him to come forward his gaze( 注视) __24__ my eyes. I stuck my hand into one of his pockets. Then I felt it—the __25__ outline(轮廓 )of the small tin heart. Charlie stared at me for a long time. There were no __26__ in those big gray eyes no plea( 恳求) for mercy. He seemed to be waiting for what he’d come to __27__ from the world. I was about to pull the tin heart out of Charlie’s pocket __28__I stopped myself. Let him keep it, I said “It must have fallen off before I got here.” Without a word Charlie __29__ to his seat. When he got off at his stop, he didn’t so much as glance at me. Several days later just that__30__ Charlie moved away… A dozen years after retirement we met in the street. To my __31__, he hugged me. After he let go, he pulled something from his pocket and held it up for me to see. An old key chain… bent out of __32__, the lettering faded (消褪). You __33__probably guess what it was—the little tin heart. “You were the only one who kept trying.” He explained. We __34__ again and went our separate ways. I am so __35__ I’d done a good job.
1.A. ignored B. feared C. greeted D. told
2.A. active B. troublesome C. independent D. noisy
3.A. position B. shoulder C. head D. attention
4.A. pulled B. cut C. stole D. played
5. A. secretly B. carefully C. proudly D. strictly
6.A. laugh at B. stare at C. depend on D. concentrate on
7.A. how B. why C. what D. who
8.A. did B. made C. wore D. said
9.A. turned into B. burned into C. stepped into D. flew into
10. A. shining B. hard C. strange D. familiar
11.A. tears B. puzzles C. hopes D. ways
12.A. plea B. ask C. expect D. disappoint
13.A. while B. when C. as D. if
14.A. came B. wanted C. intended D. returned
15.A. summer B. autumn C. spring D. winter
16.A. delight B. sadness C. surprise D. annoyance
17.A. shape B. date C. order D. fashion
18.A. need B. can C. must D. may
19.A. talked B. looked C. smiled D. hugged
20.A. happy B. sure C. lucky D. shocked
高一英语完型填空中等难度题查看答案及解析
Don’t tell others too much about your story, or you will ______ your secret!
A. bring up B. take up C. give away D. take away
高一英语单项填空中等难度题查看答案及解析
阅读下面短文,掌握其大意,然后从各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上涂黑。
This little story I’m about to tell you happened when I was about 11 years old, and I’II never forget it. I was at my friend Jenny’s __1__ after school one day, and we were doing (or not doing) homework.. __2__ I was there, Jenny’s mom came over to visit.
I don’t remember her name__3__ what her face looked like. I just remember her hands, her voice and the__4__ she taught me.
I can still see her hand __5__ for mine in our introduction. __6__ were so beautiful, I thought; rich, dark skin__7__ complemented(涂了) by the orange colored polish on her nails. Then I __8__ her saying, and not at all in a condescending(居高临下的) __9__ .“Oh no, that is NOT how you shake hands. Let me show you _10___.”
After that, I just remember her voice __11__ the importance of a good handshake, conveying(传递) a positive sense of self, looking at _12___ person in the eye, making that first moment matter…I think in that exchange I first understood__13__.
I respected her for __14__ the time to teach me about one of those subtleties(细微之处) in life. I appreciated the fact __15__ she didn’t look down upon me because I was 11 or because I didn’t know something. And so because of that I felt somewhat respected. I mean the _16___ she treated me. It felt good to be __17__ like a real person. I also appreciate her idea that _18__ someone doesn’t pay attention to something, be patient and point him or her__19__ the right direction. I__20__ her every time I meet someone and shake hands. And I’m so thankful for her little lesson.
1.A. office B. house C. family D. room
2.A. Although B. As C. During D. If
3.A. and B. but C. even D. or
4.A. homework B. English C. lesson D. knowledge
5.A. reaching down B. reaching up C. reaching out D. reaching far
6.A. It B. That C. These D. They
7.A. patiently B. beautifully C. strongly D. thickly
8.A. listened B. found C. heard D. saw
9.A. manner B. means C. method D. voice
10.A. that B. it C. how D. what
11.A. explains B. explained C. explain D. explaining
12.A. the other B. other C. another D. others
13.A. politeness B. saying C. friendship D. respect
14.A. costing B. spending C. taking D. using
15.A. what B. which C. that D./
16.A. place B. position C. way D. time
17.A. talking about B. talked to C. talking to D. talked about
18.A. as soon as B. as long as C. once D. if
19.A. from B. at C. in D. to
20.A. think over B. think of C. think about D. think out
高一英语完形填空中等难度题查看答案及解析