Unit2小题综合练 2020-2021学年人教版高中英语选择性必修第三册

人教版选择性必修第三册unit2小题综合练
Ⅰ.阅读理解
A
(2021·贵阳市四校高三年级联考四)
In a journal a study published found that an hour-long soak (浸泡) in hot water produced similar blood sugar response as 60 minutes of moderate physical activity.
That sounds too good to be true? While the study on these effects is still preliminary (初步的)，there is a plausible explanation for this.
“It seems that activities that increase heat-shock proteins may help to improve blood sugar control and offer an alternative to exercise，”the study’s lead author Steve Faulkner wrote.These activities，such as soaking in a hot tub or taking a sauna，may have healthy benefits for people who are unable to exercise regularly.
A team from the UK’s National Centre for Sport & Exercise Medicine examined 14 lean and overweight men and analyzed their metabolic health.The participants were either assigned to an hour-long session of cycling or an hour-long session in a hot bath. The scientists discovered that both groups were better able to control their blood sugar levels in the 24 hours following the activities and the participants in the bath perhaps were even better off：Their peak blood sugar levels after eating following their soak were approximately 10 percent lower than the peak blood sugar levels of those who exercised.
Researchers say this implies that “passive heating” (a means of raising your body temperature) could assist in lowering blood sugar levels.Passive heating can affect proteins in the body called heat-shock proteins，which help regulate blood sugar.People with type 2 diabetes (糖尿病) tend to have lower levels of heat-shock proteins.Passive heating can raise these levels.
It’s critical to point out a few limitations of the study.For starters，the experiment only included men，so it’s difficult to say if the same effect would happen in women.It also only included 14 volunteers，which is an extremely small sample size.More research needs to be conducted before scientists can come to any official conclusion.And，of course，you should still continue to exercise regularly.
That being said，the study does offer some more promising insight into the healing effects of hot water.
1.What does the underlined word “plausible” (in Para.2)mean?
A.Strange.
B.Reasonable.
C.Absurd.
D.Controversial.
2.Which of the following is right about the research by the UK’s team?
A.Cycling made no difference to the participants’ blood sugar levels.
B.The participants’ blood sugar levels peaked after soaking during the research.
C.14 lean and 14 overweight men were involved in the research.
D.The 24-hour tracking was carried out after the one-hour activities.
3.How should scientists improve this study?
A.By extending the study period.
B.By changing the research method.
C.By increasing the number of the subjects investigated.
D.By including more scientists in the research.
4.Which of the following best expresses the author’s main point of view?
A.When you catch a fever you get “passive heating”.
B.You need either a hot bath or regular exercise to keep healthy.
C.It is a study of significance in spite of some imperfections.
D.Passive heating can raise levels of heat-shock proteins.
答案BDCC
B
(2021·包头、赤峰部分学校第一次模拟)
You’ve probably heard it suggested that you need to move more throughout the day，and as a general rule of thumb，that “more” is often defined (给……下定义) as around 10，000 steps.With many Americans tracking their steps via new fitness-tracking wearables，or even just by carrying their phone，more and more people use the 10，000-step rule as their marker for healthy living.Dr.Greg Hager，professor of computer science at Johns Hopkins，decided to take a closer look at that 10，000-step rule，and he found that using it as a standard may be doing more harm than good for many.
“It turns out that in 1960 in Japan they figured out that the average Japanese man，when he walked 10，000 steps a day burned something like 3，000 calories and that is what they thought the average person should consume so they picked 10，000 steps as a number，” Hager said.
According to Hager，asking everyone to shoot for 10，000 steps each day could be harmful to the elderly or those with medical conditions that make it unwise for them to jump into that level of exercise，even if it’s walking.The bottom line is that 10，000 steps may be too many for some and too few for others.He also noted that those with shorter legs have an easier time hitting the 10，000-step goal because they have to take more steps than people with longer legs to cover the distance.It seems that 10，000 steps may be suitable for the latter.
A more recent study focused on older women and how many steps can help maintain good health and promote longevity (长寿).The study included nearly 17，000 women
with an average age of 72.Researchers found that women who took 4，400 steps per day were about 40% less likely to die during a follow-up period of just over four years，compared to women who took 2，700 steps.Interestingly，women in the study who walked more than 7，500 steps each day got no extra boost in longevity.
5.What does the underlined word “it” in Paragraph 1 refer to?
A.The phone recording.
B.The 10，000-step rule.
C.The healthy living.
D.The fitness-tracking method.
6.What does Paragraph 2 mainly talk about?
A.How many steps a Japanese walks.
B.How we calculate the amount of steps.
C.If burning 3，000 calories daily is scientific.
D.Where 10，000 steps a day came from.
7.Who will probably benefit from 10，000 steps each day according to Hager?
A.Senior citizens.
B.Young short-legged people.
C.Healthy long-legged people.
D.Weak individuals.
8.How many steps may the researchers suggest senior citizens take each day?
A.4，400 steps.
B.10，000 steps.
C.2，700 steps.
D.7，500 steps.
答案BDCA
C
(2021·沈阳市教学质量监测三)
Researchers from the MIT Media Lab，Boston Children’s Hospital，and Northeastern University used a robotic teddy bear，“Huggable”，across the Boston Children’s Hospital.More than 50 hospitalized children were divided into three groups that involved Huggable，a tablet-based virtual Huggable，or a traditional toy teddy bear.In general，the robotic Huggable improved various patient outcomes over the other two choices.
When first designed，Huggable was operated remotely by a specialist outside a child’s room for a moment.Through software，a specialist could control the robot’s facial expressions and body actions.The specialists could also talk through a speaker—with their voice automatically changed to sound more childlike—and observe the participants via camera.
During the treatments involving Huggable for kids aged 3 to 10，a specialist would sing nursery rhymes to younger children through the robotic bear and move the arms during the song.Older kids would play the I Spy game，where they had to guess an object in the room described by the specialist through Huggable.Through self-reports and questionnaires，the researchers recorded how much the patients and families liked Huggable.A greater percentage of children and their parents reported that the children enjoyed playing with Huggable more than with the virtual figure or traditional teddy bear.
The study proved the possibility of including Huggable in the treatments for children.Results also showed that children playing with Huggable experienced more positive emotions overall.They also got out of bed and moved around more，and were emotionally connected with the robot，asking it personal questions and inviting it to come back later to meet their families.“Such improved emotional and physical
outcomes are all positive factors that could contribute to hospitalized children’s better and faster recovery，” the researchers wrote in their study.
The study also provided a basis for developing a fully autonomous Huggable robot，which is the researchers’ final goal.In the future，that automated robot could be used to improve children’s further treatment and care，and monitor their well-being. 9．What can we learn about Huggable?
A．It was first designed for disabled kids.
B．It can make facial expressions.
C．It talks like a caring parent.
D．It works automatically.
10．How did the children find Huggable?
A．Favorable. B．Conventional.
C．Disappointing. D．Unhelpful.
11．How did Huggable help the hospitalized children with their treatment?
A．It improved their mental experience.
B．It protected them from possible viruses.
C．It gave tips on taking good care of young patients.
D．It provided up-to-date information about their diseases.
12．What is the text mainly about?
A．The fast development of robots in the medical area.
B．A new technology in medicine to treat children.
C．Robots’ advantages over other methods of treatment.
D．A robotic teddy bear used in caring for hospitalized children.
答案BAAD
(2021·太原市高三年级模拟试题一)
Can’t Resist Junk Food? A Study Suggests
You Try This Simple Trick
You’re tired and hungry.Then you catch a whiff of something delicious，probably fried and almost certainly fattening.It is fried chicken！ 1 New research says that exposing to the smell of junk food for at least two minutes can actually help you make healthier food choices.
Let’s take a closer look at this process.Have you ever noticed that whatever appetizing treat catching your nose’s attention tends to be most appealing just after you first smell it？What will happen if you’re standing in line after a couple of minutes？2 And recent science says that this is actually the right moment to walk away.
The results of a series of experiments，including field studies at a supermarket and at a middle school cafe-teria，show that extended exposure (of more than two minutes) to junk food smell(e.g.，cookie smell) leads to lower purchases of unhealthy foods compared with healthy smell (e.g.，strawberry smell)．3 That is why long exposure to junk food smell can be as satisfactory as actually having it in your mouth，which in turn decreases the desire for consumption of junk food.
4 When the exposure to smell of healthy food was examined，food choices were not profoundly influenced.The reason for this is that healthy food is not connected with reward in our brain and therefore has little influence on what we desire.
So next time you’re feeling you don’t have the willpower to resist that French fries，it might be as simple as sitting there and smelling all that sweetness for just two minutes. 5
A．But wait a minute before you order.
B．It’s a response that has been researched.
C．Get the satisfaction with none of the calories.
D．It isn’t quite as irresistible as it was just moments ago.
E．However，it’s not the same case with smell of healthy food.
F．It’s the same as actually eating it because your desire to eat it is satisfied. G．The brain doesn’t necessarily distinguish between a pleasurable smell and taste. 1．A2．D3．G4．E5．F。