Most American businesses are open five days a week. American school children attend school five days a week as well. American families 1. (usual) have a two-day weekend. The weekend is Saturday 2. Sunday.
Over the weekend, people spend their time 3. (do) various things. Many families enjoy weekend together. They may go shopping, go for a drive, or visit friends. They may also send 4. (invite) friends and have a party at home. Weekends are also good chances to take trips, 5. are usually short ones. They will go to the nearby mountains, parks, lakes or other 6. (interest)places to relax them. Some even go camping and picnicking there.
Many families participate 7. sports during the weekend. Running, biking, playing volleyball and swimming are popular in the summer. Skiing and skating are the favorite winter 8. (sport).
Weekends are also a time for American families 9. (work) on something in their yards or on their houses. Many families plant flowers and have vegetable gardens. So weekends 10. (use) to paint or repair their houses. For most Americans, weekends are very busy.
科目:高中英語 來源:黑龍江省哈爾濱市2016-2017學年高二下學期期中考試英語試卷 題型:單詞拼寫
1.The town has changed beyond __________(認出) since I was last here.
2.He lost his __________(胃口,食欲) because of his sorrow.
3.He entered the room without teacher’s __________(允許).
4.Please come at your __________(方便), and you will be welcome.
5.Most __________(申請人) know they have little chance of getting a visa.
6.Necessity is the mother of __________(發(fā)明).
7.My eyes slowly grew __________(適應,習慣) to the dark.
8.Envy is a __________(普遍的,全體的) weakness of people.
9.I __________(贊同) of your trying to make some money, but please don’t neglect your study.
10.The pattern of injuries is __________(一致的,吻合的) with an attack with a knife.
11.It seemed as if battle against racial __________(歧視) was being won.
12.His casual clothes were not __________(適合的,恰當的)for such a formal occasion.
13.He was a __________(代表) of Russia to the UN.
14.A rare snowstorm __________(橫掃,掃過) across the region yesterday.
15.Without her timely assistance, we would never have won the __________(競爭,競賽).
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科目:高中英語 來源: 題型:閱讀理解
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科目:高中英語 來源:黑龍江省哈爾濱市2016-2017學年高二下學期期中考試英語試卷 題型:閱讀理解
Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain-computer interface (界面) (BCI) technology could help people with disabilities send commands to machines.
Recently, two researchers, Jose Milan and Michele Tavella from the Federal Polytechnic schooling Lausanne, Switzerland, demonstrated(展示)a small robotic wheelchair directed by a person's thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
"Our brain has billions of nerve cells. These send signals through the spinal cord(脊髓)to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles," Tavella says. "Our system allows disabled people to communicate with external world and also to control devices."
The researchers designed a special cap for the user. This head cover picks up the signals from the scalp(頭皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.
Prof. Milan, the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. "The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. One example is this wheelchair."
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can benefit from. And the other is to guarantee that they can use the technology over long periods of time.
1.BCI is a technology that can _________________.
A. help to update computer systems
B. link the human brain with computers
C. help the disabled to recover
D. control a person's thoughts
2.How did Tavella operate the wheelchair in the laboratory?
A. By controlling his muscles.
B. By talking to the machine.
C. By moving his hand.
D. By using his mind.
3.The team will test with real patients to .
A. make profits from them
B. prove the technology useful to them
C. make them live longer
D. learn about their physical condition
4.Which of the following would be the best title for the text?
A. Switzerland, the BCI Research Center
B. New Findings About How the Human Brain Works
C. BCI Could Mean More Freedom for the Disabled
D. Robotic Vehicles Could Help to Cure Brain Injuries
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科目:高中英語 來源:廣西省2017屆高三下學期期中考試英語試卷 題型:閱讀理解
Today I went to Berkeley, near our old neighborhood. I was a bit surprised by the increased number of homeless (alternatively housed) people walking around. I remember there are more in certain areas. So the first man who asked me for money got all my single bills. So when the second man asked me two minutes later, I said I was out because I gave all I had to the previous person.
I was headed to the grocery store for a coffee and after I left the store I walked out to find him as he had asked me for something because he was hungry and I invited him to go into the grocery store with me.
When I asked him what he wanted to eat, he just asked for vegetable and rice. He talked about how much better the vegetables were as we waited for our number to be called. While we waited he told me that he had slept outside last night on the sidewalk, that it was not good, and that he had come from Rwanda and was alone.
He was a gentleman. When I asked if he wanted more he said, this bowl of food would last him the whole day.
I don’t know what his circumstances were before he came to California, and wandering and begging on the streets could somehow be better because you just never know what had happened to him. He seemed like a kind soul who just needed some help like we all do. I am grateful I did a little to help him today.
1.Why did the author fail to give the second homeless man money?
A. He kept some money for others. B. He spent all his money shopping.
C. He didn’t take any money that day. D. He donated all her small money to the first man.
2.What does the underlined word“ it” in Paragraph 3 refer to?
A. He was alone. B. He waited for his food.
C. He slept on the sidewalk. D. He was offered food.
3.How did the author feel about the homeless man?
A. Understandable. B. Pitiful.
C. Hopeless. D. Strange.
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科目:高中英語 來源:四川省內江市2017屆高三第五次模擬考試英語試卷 題型:閱讀理解
B vitamins(維生素)may offer some protection against the effect of air pollution,a new study suggests.
The scientists say the effect is real but stress the limitations of their work.Follow-up studies are urgently needed, they say,in heavily polluted cities like Mexico.
According to the World Health Organization (WHO),over 90% of the world's population live in heavily-polluted areas.The one of the pollutants that is considered the most dangerous is very fine particulate matter, referred to as PM2.5.At around 1/30 the width of a human hair,PM2.5 can go deep into the human lung and contribute to lung and heart health problems in the young and old.
Scientists have long suspected that PM2.5 causes what are termed epigenetic(表觀遺傳)changes in our cells that can damage our health.Now in this new human trial,an international team of scientists wanted to see if exposure to concentrations of PM2.5 could be mitigated by daily B vitamins.
Ten volunteers were tested initially exposed to clean air and their basic responses were measured.The same volunteers were later tested with large doses(劑量)of B vitamins while exposed to air containing high levels of PM2.5.The researchers found that a four-week B vitamin intake limited the PM2.5 effect by between 28-76% at ten gene locations.They found a similar reduction in effect on the mitochondrial DNA,the parts of cells that produce energy.
However,the researchers caution that their study,while observing a real effect,has limitations.As well as the small number of participants,there was little information on the size of the B vitamin dose that caused the response.
1.What is the main idea of the text?
A. B vitamins may fight against PM2.5.
B. PM2.5 can lead to epigenetic changes.
C. Further studies should be done on PM2.5.
D. Exposure to PM2.5 is more and more serious.
2.Which can replace the underlined word "mitigated" in Paragraph 4?
A. measured B. ignored
C. reduced D. observed
3.How many limitations does the text mention about the new study?
A. 2. B. 3.
C. 4. D. 5.
4.How does the writer of the text like the new study?
A. He believes it deeply. B. He criticizes it strongly.
C. He thinks it needs testing again. D. He shows no opinion about it.
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科目:高中英語 來源:云南省昆明市2017屆高三5月復習適應性檢測英語試卷 題型:完形填空
I started serving the homeless when I was eight years old. I didn’t know these people would make such a big difference in my ______.
Twice a month I go to the church and help get things ready for _______. When the gate is opened, people come ____in to get drinks. They take their seats while breakfast is_______, and then we begin to_______. We each take two plates and carry them _______the line as the plates are ______. Each person receives kinds of foods. I walk to the tables and_______the plates before them. After I’ve served them, I ask if they need_______else and bring them whatever they ask for.
When I first started serving, I was a little _____. At first I stayed close to my mom most of the time, but after I got to know these strangers, I_______that they were friendly people. And the_______of them was often nicer than the outside. I realized that there was no______ to the scared. After serving for a few months, I started to_______seeing the same people each week.
All of these people make my day much_______. The past two years have made a big ______in my life. I do this ____it is the right thing to do. When I serve people, I want them to know that someone _______them and that they matter. Serving makes me happy, but even more _______, it teaches me to love and ______others and helps make the world a better place.
1.A. study B. work C. family D. life
2.A. breakfast B. brunch C. lunch D. dinner
3.A. secretly B. quickly C. slowly D. separately
4.A. ordered B. enjoyed C. prepared D. tasted
5.A. eat B. serve C. leave D. try
6.A. before B. beyond C. above D. along
7.A. emptied B. washed C. filled D. dried
8.A. make B. set C. fix D. show
9.A. nothing B. everything C. something D. anything
10.A. surprised B. embarrassed C. scared D. puzzle
11.A. realized B. admitted C. claimed D. swore
12.A. past B. inside C. surface D. front
13.A. way B. doubt C. reason D. wonder
14.A. get tired of B. take charge of C. get down to D. look forward to
15.A. better B. further C. busier D. easier
16.A. success B. difference C. profit D. fortune
17.A. because B. if C. once D. thought
18.A. relies on B. goes after C. cares about D. looks for
19.A. necessarily B. interestingly C. honestly D. importantly
20.A. respect B. forgive C. inspire D. protect
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科目:高中英語 來源: 題型:書面表達
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