I will go to Canada_______ next year
A. sometime B. sometimes
C. some time D. some times
高一英语单项填空简单题
I will go to Canada_______ next year
A. sometime B. sometimes
C. some time D. some times
高一英语单项填空简单题查看答案及解析
When people go to the hospital to have a medical examination, sometimes doctors will ask them to have an X-ray or CT. What about a PET? PET stands for Positron Emission.
Tomography（正电子成像素）. PET scanner（s 扫描仪）create 3-D images of what is happening in the body. Scientists are devloping this medical equipment that could tell them more about the human body, and help them develop more-effective treatments for cancer, heart disease and brain disorders. It would be the world’s first full-body PET scanner.
Researchers are calling the large scanner that they are developing Explorer. It will give medical workers images of what is happening in the whole human body that have never been seen before. PET scanners now give doctors images of only parts of the body.
The U.S National Institutes of Health gave a research team at the University of California at Davis $ 15.5 million to build the scanner.
Ramsey Badawi, a professor at UC Davis, says the scanner will give researchers new information about how human organs （器官）work together.
“We’re a system of organs and all the organs interact with each other. And we’ve never really been able to get that with imaging before, and now we’re going to be able to look at that. These images help us find out and follow diseases. The new scanner will help us do that even better.”
Simon Cherry, another professor at UC Davis, says the PET scans can show the progress of both disease and medical treatments. “With PET scans we’re looking at function. We’re actually able to say something about what the cells in the body are doing. He says the Explorer uses a much lower amount of radiation（辐射）than today’s PET tests, and creates images more quickly. “So we can do scans in maybe 30 seconds that now take 20 minutes. Or we do scans under a very small radiation.”
A complete view could help researchers develop new medicines that target diseases and parts of the body. It could help doctors reduce harmful side effects by following the movement of medicines through the body.
The researchers hope to test the Explorer with humans in three years.
1.What is the most obvious advantage of Explorer about the image it produces?
A. It will give doctors images of human organs.
B. It can offer doctors images of the whole human body.
C. It will give doctors images of only parts of the body.
D. It will give doctors images of better quality.
2.What does the word “It” mean in the last but one paragraph?
A. The body B. A new medicine
C. A complete view D. A disease
3.What’s the author’s attitude toward Explorer?
A. Doubtful B. Positive
C. Supportive D. Objective
4.What’s the main idea of the passage?
A. PET scanners create 3-D images.
B. Doctors will develop more effective treatments for cancer.
C. The world’s first PET scanner will be put into use.
D. A full-body PET scanner is being developed.
高一英语阅读理解中等难度题查看答案及解析
—Would you please let me know when the training center ________?
—Sometime next month.
A. will be set up B. would be set up
C. has been set up D. was set up
高一英语单项填空中等难度题查看答案及解析
Do you have trouble trying to create the next big idea? Sometimes the answer isn’t to just force an idea out of your mind. Instead, you might want to try sitting back, relaxing and letting your mind wander. Yes, you heard that correctly. If you are in need of a new idea, try daydreaming.
Researchers from the university of California, Santa Barbara, found an association between daydreaming and creative problem-solving. Their study includes having participants first do an “unusual-use task”. They had to try to come up with as many different ways to use an object as they could.
Then, the participants chose to do one of the following four things before doing the “unusual-use task” again: complete a difficult task; complete an easy task; take a 12-minute break; or skip the 12-minute break and move right on to the task exercise again.
Surprisingly, the group that performed best was the one that completed the easy task. Many participants reported that they were daydreaming while performing the easy task. So the researchers believed that this daydreaming might have helped unlock their creativity.
But how could daydreaming help the brain come up with creative ways? The answer is something known as “unconscious thought”. Even when you are not actively working to solve a problem, it is still in the back of your mind. Your brain is still thinking about the problem, but in a much more subtle (不易察觉的) way.
When you daydream, your mind is allowed to think in ways it normally would not. Because it is free of control, it can create completely new and out-of-the-box ideas.
Great ideas never come easily, but that does not mean you always have to work hard to get them. Feel free to do what you want and let your mind wander.
1.The “unusual-use task” in Paragraph 2 means that participants ______.
A. complete an easy task B. complete a very difficult task
C. take a 12-minute break D. think of various ways to use an object
2.Why did the participants who completed the easy task perform best?
A. They were not actively working to solve the easy task.
B. They daydreamed and it helped them be more creative.
C. They were daydreaming while performing the difficult task.
D. They skipped the 12-minute break to complete the task again.
3.What does the underlined phrase “unconscious thought” in Paragraph 5 mean?
A. Your brain wander in a subtle way within your control.
B. Your brain knows clearly what you’re thinking and doing.
C. Your brain is thinking about a problem outside of your awareness.
D. Your brain refuses to receive any information from the outside world.
4.The passage mainly wants to tell us that ______.
A. brainstorming is important to creative ideas
B. daydreaming is a way to improve creativity
C. problem-solving skills are important in our lives
D. the more we exercise brains, the more ideas we’ll get
高一英语阅读理解中等难度题查看答案及解析
I live in a rural area but sometimes we go to the city to go shopping. One day, my daughter and I 21 we needed a day of it. We 22 made the most of it. Like anyone that likes going shopping, we of course had a 23 day.
After we bought all that we needed, it was time to go. On the way to the exit doors, there was a lady 24 the pay phone who wasn’t able to speak English very well. She 25 getting help from people but kept getting 26 all the time. Seeing the 27 in her face, I stopped to see if I could help her. I didn’t really 28 much of what she was saying but I finally got the idea 29 she wanted a30 . She gave me the coins and I called one of the taxi companies. I 31 that the lady didn’t talk much English but32 a taxi. They replied they would 33 one out right now. I tried my best to tell that to the lady. Soon she 34 happily. Obviously, she was very 35 to me.
When my kids were 36 , I would do an act of kindness and after we were away from the 37 , I would explain what I did and 38 . I wasn’t trying to 39 but just trying to teach them about acts of 40 . They learned that it was OK to help others and have gone on to do the same.
1. A. meant B. argued C. accepted D. decided
2. A. surely B. willingly C. legally D. sadly
3. A. hopeful B. pleasant C. lucky D. equal
4. A. by B. on C. with D. from
5.. A. considered B. managed C. begged D. tried
6. A. turned to B. turned up C. turned down D. turned off
7.. A. calmness B. sadness C. courage D. anger
8. A. think B. seize C. hear D. understand
9. A. that B. which C. what D. where
10.. A. company B. taxi C. telephone D. lift
11.. A. apologized B. explained C. repeated D. sentenced
12.. A. escaped B. voted C. needed D. rewarded
13.. A. send B. lend C. give D. leave
14.. A. listened B. smiled C. moved D. agreed
15. A. helpful B. satisfied C. thankful D. loyal
16.A. generous B. young C. unhappy D. unfair
17. A. exhibition B. position C. situation D. acceptance
18. A. where B. when C. how D. why
19.. A. show off B. show around C. blow up D. give up
20. A. guidance B. kindness C. principle D. willingness
高一英语完型填空简单题查看答案及解析
Sometimes I feel like going to the countryside to _______ the noise, the dirt and the people.
| A．look for | B．get into | C．get away from | D．look forward to |
高一英语单项填空简单题查看答案及解析
Sometimes, you do not finish drinking your glass of water before you go to bed. 1.
But have you ever wondered if it is still safe to drink?
“If you have clean water in a clean glass, you’re fine to drink it for a day or two,” Kellogg Schwab from the Johns Hopkins University Water Institute in the US told Time.
2. That’s because after about 12 hours, the carbon dioxide (二氧化碳) in the air reacts（反应）with the water in your glass, slightly lowering its pH level.
Also, there might be more microorganisms (微生物) in your water if you leave it out overnight. Microorganisms grow more quickly at room temperature. These microorganisms can stay on your glass. 3. But as long as you clean your glasses very often, this will not be a problem.
In countries like the US and UK, people often drink water directly from the tap (水龙头).4. Most experts say that tap water has a shelf life of six months, according to Zane Satterfield from West Virginia University, US. After six months, there is less chlorine (氯) in the water and bacteria (细菌) start to grow. You’d better not drink the water otherwise you may get sick.
5. Schwab said people should be careful with them. If you leave a bottle of water under the sun or in a car for a long period of time, the plastic produces a chemical called BPA. This chemical can cause heart disease and cancer.
A.What about plastic water bottles?
B.They can make you get sick more easily.
C.Is it safe for you to drink the water later?
D.But you may find that it tastes strange.
E.Some people prefer to drink water from rivers.
F.You might want to drink it the next morning.
G.This is OK—however, tap water cannot be stored for a long time.
高一英语七选五中等难度题查看答案及解析
Father _____ goes to the gym with us although he dislikes going there.
A．hardly B．seldom C．sometimes D．never
高一英语单项填空简单题查看答案及解析
Father _____ goes to the gym with us although he dislikes going there.
| A．hardly | B．seldom | C．sometimes | D．never |
高一英语单项填空中等难度题查看答案及解析
--- My watch is nowhere to be found.
--- Don’t worry! I’m sure it will ____ sometime when you’re not looking for it.
A. turn up B. put up C. take up D. pick up
高一英语单项填空中等难度题查看答案及解析