【文章內(nèi)容簡介】 es when he handed out Fitbits to the 100 students in his introduction to SolidState Chemistry class. Instead, the professor of Computational Materials Science hoped the popular wristworn device which, tracks a person39。s activity 24/7, would show a connection between physical exercise and academic achievement. However, the study, published in the journal “Science Learning” on October 1, 2019, discovered a surprising insight. Then was a straightline relationship between the average amount of sleep a student got and his/her grade on the 11 quizzes, three midterms, and the final exam administered during the semester. Even more interesting, it was also not sufficient for students to just head to bed early the night before a test. Instead, it39。s the sleep you get during the days when learning is happening that matters most. The time students went to bed each night was similarly important. Those who went to bed in the early hours of the morning performed poorly, even if the total sleep time was the same as a higher performing student. “When you go to bed matters. Grossman says. If you go to bed after 2, your performance starts to go down even if you get the same seven hours. So, quantity isn39。t everything.”（1）What is the new finding about sleep? 39。s essential for a person39。s health. less may cause obesity. too much is dangerous. sleep leads to better grades.（2）What does the underlined word Fitbits in paragraph 2 refer to? devices.. equipment..（3）Which of the following best describes the final result the new study? ....（4）What will benefit students39。 study according to Grossman? for 5 hours each day. to bed at 3 every day. enough sleep while learning. to bed early only before a test.【答案】 （1）D（2）A（3）D（4）C 【解析】【分析】本文是一篇說明文，一項新研究表明，睡眠質(zhì)量不足除了對身體健康造成不良影響之外，也會對學(xué)習(xí)成績產(chǎn)生影響。好的睡眠質(zhì)量是提高學(xué)習(xí)成績的關(guān)鍵。 （1）考查細(xì)節(jié)理解。根據(jù)第一段中的“Now, a new study by Boston39。s Massachusetts Institute of Technology ( MIT) has found that getting sufficient sleep is also the key to improving academic performance. ”現(xiàn)在，波士頓麻省理工學(xué)院的一項新研究發(fā)現(xiàn)，充足的睡眠也是提高學(xué)習(xí)成績的關(guān)鍵，可知關(guān)于睡眠的新發(fā)現(xiàn)是充足的睡眠會帶來更好的成績。故選D。 （2）考查詞義猜測。根據(jù)第二段中的“Instead, the professor of Computational Materials Science hoped the popular wristworn device which tracks a person39。s activity 24/7, would show a connection between physical exercise and academic achievement.”可知相反，這位計算材料科學(xué)的教授希望這個流行的腕帶設(shè)備能夠顯示出體育鍛煉和學(xué)術(shù)成就之間的聯(lián)系?？芍狥itbits指的是一種可以穿戴的設(shè)備。故選A。 （3）考查推理判斷。根據(jù)倒數(shù)第三段中的“However, the study, published in the journal “Science Learning” on October 1, 2019, discovered a surprising insight.”然而，發(fā)表在2019年10月1日《科學(xué)學(xué)習(xí)》雜志上的這項研究卻有一個驚人的發(fā)現(xiàn)，其中surprising“令人驚奇的”可推知這項新研究的最終結(jié)果是讓人意想不到的。故選D。 （4）考查推理判斷。根據(jù)倒數(shù)第二段中的“Instead, it39。s the sleep you get during the days when learning is happening that matters most.”相反，最重要的是你在學(xué)習(xí)期間的睡眠；以及最后一段中的“When you go to bed matters. Grossman says. If you go to bed after 2, your performance starts to go down even if you get the same seven hours. So, quantity isn39。t everything.”什么時候睡覺很重要。Grossman說。如果你在2點以后睡覺，即使你睡了7個小時，你的表現(xiàn)也會開始下降。所以，數(shù)量并不是一切，可知Grossman認(rèn)為學(xué)習(xí)時睡眠充足將有利于學(xué)生的學(xué)習(xí)。故選C。 【點評】本題考點涉及細(xì)節(jié)理解，詞義猜測和推理判斷三個題型的考查，是一篇科研類閱讀，考生需要準(zhǔn)確掌握細(xì)節(jié)信息，并根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，從而選出正確答案。 5．閱讀理解 A bunch of strangers showed up at the gym in the early morning of the last Sunday of April. A few athletes were already stretching their arms, but most of us could barely focus. As I was burning off last night39。s wrong decision—a big meal, I spotted a poster about a gym39。s 21day workout challenge, and I immediately signed up. I always wanted to train for a marathon, so I considered this as my warmup. Besides, I needed to stop being lazy and this was my chance to make a change. It was easy to promise on paper, but three weeks of remended exercise routines and diet restrictions wouldn39。t be easy. I stuck to working out 30 minutes a day, and I didn39。t disturb my normal routine. Instead, I had to be faced with the tough work of being more creative in my spare time, thus breaking some bad habits. Overing weaknesses with willpower was my goal for the next part of the journey. But the difficult part about making a challenge is realizing that wanting and doing are two very different things. Just like a career, you have to physically work for it rather than just wait for it to happen. But that39。s hard. Throughout the 21 days, I often told myself that the challenge was meaningless and tried to sabotage myself from exercising. However, finally I overcame that negative thought and kept working out. At the end of the challenge, I learned something even more important: Feeling the results is better than seeing them. I had fewer headaches and more energy, and was simply happier. I even felt a little smarter as I researched which foods were better for my body, and learned how to make healthier meals. I felt a sense of acplishment, too, because even though I wanted to give up dozens of times, I didn39。t. I felt my waist got smaller and my arms got stronger, and I no longer felt guilty after having a piece of cake or a drink.（1）What was the author39。s wrong decision? A.Going to the gym early.B.Training for a marathon.C.Eating a lot the previous night.D.Stopping being lazy for a change.（2）What is paragraph 2 mainly about? of the author39。s bad habits. ways of the author39。s killing his spare time. importance of sticking to the normal daily routine. difficulty of the author39。s keeping on with the workout plan.（3）What does the underlined word sabotage in paragraph 3 probably mean? ....（4）What did the author learn from the workout challenge? healthy food is more important than exercising. a challenge could bring good feelings to him.39。s more important to see what he likes than just feel it. was no need to feel guilty about things he disliked to do.【答案】 （1）C（2）D（3）A（4）B 【解析】【分析】本文是一篇記敘文，一張宣傳健身鍛煉的海報讓作者開始馬拉松的熱身。雖然三個星期的鍛煉計劃和飲食限制是很難堅持的，但是作者堅持每天鍛煉。最后，鍛煉給作者帶來了好心情。 （1）考查細(xì)節(jié)理解。根據(jù)第一段中的“As I was burning off last night39。s wrong decision—a big meal, I spotted a poster about a gym39。s 2