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1、課時(shí)提能練(三十八) 選修 8Unit 3Inventors and inventions A：知識層面 .語境語法填空 A(考查派生詞) Most pupils have 1expectations (expect) that they can participate in varieties of 2practical (practice) activities off campus. Many student 3associations (associate) often organize such activities, offering great 4convenience (con

2、venient) for the pupils. However, experts and parents are 5cautious (caution) about pupils taking part in social activities. Pupils are 6innocent (innocence), and they are easily taken in. Besides, many often ignore their security when 7merrily (merry) involved in these activities. Schools must warn

3、 their pupils not to trust those who take interest in them 8abruptly (abrupt) but hesitate to show their 9identification (identify) cards. B(考查動詞) There are amazing things about babies. They learn to see by 10distinguishing (distinguish) between areas of light and dark. They start to use their whole

4、 hand 11to seize (seize) toys and objects around 5 months of age. They are found 12 tapping (tap) on smart phones when they are as young as 6 months. Someone says babies learn to do things because certain acts 13are associated (associate) with physiological “drives”. However, this is not the case. 1

5、4Bear (bear) in mind that your baby is eager to experience the joy of success just like an adult. To request more details about how babies learn, youre welcome 15to dial (dial) the phone number 610894149099 to contact us at any time. C(考查句型) There being no customers at this hour, my mother closed he

6、r shop. Before long she appeared in front of me. “Drink the milk 16before it becomes cold and then go to sleep， ” she said to me. A competition was to take place the next day. 17Being (be) very good at science subjects, I had a good chance of gaining high grades. 18 Convinced (convince) that I would

7、 not let her down, she still expected me to sleep well and refresh my mind before the competition. “Dont stay up too late, 19or youll feel tired tomorrow.” .根據(jù)提示補(bǔ)全句子 1你方便時(shí)就來看我。 Come and see me whenever it is convenient for you 2身邊應(yīng)多準(zhǔn)備一些開水，以備不時(shí)之需。 Extra boiled water should be kept at hand just in cas

8、e it is needed 3冰加熱時(shí)會變成水。(狀語從句的省略) When heated，ice can be changed into water. 4我很少看到這么明亮的月亮。 Rarely have I seen such a bright moon. 5不要放棄，否則的話你會一事無成。 Dont give up or you will achieve nothing B：能力層面 .閱讀理解 A (2020湖南省六校聯(lián)考)When you think of batteries，youll likely think about them powering up remote cont

9、rols，cell phones，flashlights and toys.But some people carry a battery around in their body to power a pacemaker (起搏器)It isnt really pleasant and easy to carry batteries because they need to be replaced so often and they can leak poisonous chemicals.A batterypowered pacemaker may become a thing of th

10、e past，thanks to a new technology developed by UCLA researchers: A biological super capacitor (超級電容器)，which is thinner than several hairs. Teams of researchers at UCLA and the University of Connecticut published a paper in a journal explaining their new invention.The super capacitor is made from a c

11、arbon material，and coated with humanlike proteins that act as electrodes (電極 )But what makes the device different is that it is powered by an energy harvester that changes body heat and movement in the blood into energy. Those traditional pacemakers are six to eight millimeters thick.They are much b

12、igger.The new super capacitor，which，due to its lack of battery，is only one micrometer thick.This “l(fā)ittle” feature could benefit the new pacemakers energy efficiency，researchers stated.Furthermore，unlike other batteries used in medical treatments， the super capacitor can bend and twist in the body wi

13、thout suffering damage. Though theyve not been widely used in the medical world，super capacitors have the ability to serve as a safer and more efficient medical device than the traditional batteryoperated devices，the researchers believe. “In order to be effective，batteryfree pacemakers must have sup

14、er capacitors that can get，store and transport energy.However，commercial super capacitors are too slow to make them work”，said Maher ElKady，a UCLA researcher and coauthor of the study.“ Our research focused on the customdesigned super capacitor to capture energy effectively，and finding a way to make

15、 it exist together successfully with the human body.” 【語篇解讀】文章介紹了一項(xiàng)新的發(fā)明超級電容器。它不需要電池，而且尺寸更 小、更安全，能更好地為起搏器供能。 1What do we know about traditional pacemakers? AThey are very popular with users. BThey are thinner than several hairs. CThey can do harm to the users bodies. DThey are really convenient to ca

16、rry around. C細(xì)節(jié)理解題。根據(jù)第一段第三句可知，傳統(tǒng)的起搏器需要經(jīng)常更換電池，而且電池 會泄漏有毒的化學(xué)物質(zhì)，因此它們對人身體有害。故選 C。 2What is special about the new super capacitor? AIt has electrodes on the outside. BIt is made from a kind of protein material. CIt helps save the carriers money and energy. DIt can transform the energy from the body. D細(xì)節(jié)理解題。根據(jù)第二段可知，超級電容器是由一個(gè)能量采集器驅(qū)動的，該能量采 集器將身體熱量和血液中的運(yùn)動轉(zhuǎn)化為能量，即轉(zhuǎn)化來自身體的能量，故選 D。 3Which of the following makes the new pacemaker energyefficient? AThe small size. BThe small battery. CThe energy harvester. DThe