培优练习3Sep28th

1、培优练习3 sep 27th a noted american psychologist once remarked that childhood is a magical period in ones life. indeed it is, for during 1 one undergoes a step-by-step transformation not only in 2 capacity, but also in physical and verbal skills. each step 3 an increase in the difficulty of a childs con

2、ceptual and learning abilities. during the early stages of childhood, from infancy to about five, the child learns simple skills including using the toilet, bathing and dressing himself 4 . at this stage, he also learns to be very observant, curious, 5 and creative. his ability to remember things al

3、so 6 at this stage. he remembers details that an adult may have difficulty in remembering. 7 , he learns elementary skills in problem-solving. at school, particular in 8 classes, the child is especially creative. given a piece of paper and some colored pencils, he draws a variety of 9 from his surro

4、undings as well as from his 10 circle. it is not surprising to see a child draw a monster to represent an abusive father, and an _11_ to represent a loving and caring mother. as he graduates to the later stages of childhood bordering on the 12 years, the child learns the complexity of human relation

5、s and socialization by 13 with his peershis friends and schoolmates. he also learns to 14 with new life situations, including dates and part-time work. given a tight schedule of schoolwork, the child learns to prepare his own schedules of work and play; the more practical and less serious ones manag

6、e to take time out of their 15 schedules of assignments, reports and tests and examinations to go with their friends on relaxation entertainment. 1. a. adolescence b. adulthood c. childhood d. infancy2. a. spiritual b. magicalc. practicald. mental3. a. signalsb. presentsc. preventsd. signs4. a. will

7、inglyb. excitedly c. confidentlyd. independently5. a. optimisticb. imaginativec. abled. studious6. a.increases b. developsc. declinesd. strengthens7. a. graduallyb. fortunatelyc. unexpectedlyd. undoubtedly8. a. music b. chemistryc. art d. biology9. a. picturesb. images c. reflectionsd. buildings10.

8、a. schoolb. familyc. teacherd. friend11. a. beautyb. actressc. witchesd. angel 12. a. infancyb. adulthood c. teenage d. aged13. a. competingb. fighting c. interactingd. learning14. a. experimentb. agree c. withdrawd. concern15. a. ambitious b. original c. daily d. busy语法填空as a working mom with three

9、 young sons, keeping the house clean is a big challenge. 16 we clean the house every week, one hour later after cleaning our bedrooms and bathrooms are back to their 17 (mess) look. when asked, my boys will help neaten their room, clear their plates from the table and pick up their school junk. but

10、i need to remind them 18 it again and again. if i dont remind them, i will step over all the things 19 make my house look like a garbage can. this is quite 20 change from my pre-kid years when i never _21 (leave) any waste in the house. 22 seems that i cannot get these days back again at my own hous

11、e.when last week i found a program called “share a healthy habit” on a newspaper, i saw a great chance to engage my sons in cleaning chores. why not encourage these behaviors during the summer, while school is out and their life is 23 (relax)? the goal for my boys is to clean 24 own dorm room themse

12、lves when they are free. the rewards for clean habits start young and continue as they get 25 (old), so i need to start my plan as soon as possible.阅读理解：aas the nights get longer, those who suffer from the winter blues will be planning ways to escape to the sunshine.but there may be a much simpler w

13、ay of cheering yourself up. simply shining a bright light into your ear canal.up to one in four britons suffer from seasonal affective disorder, with seven percent of the population having full-blown sad. it is caused by the brain not receiving enough daylight which is needed to trigger serotonin（血清

14、素）, a hormone that regulates mood. symptoms range from mild lethargy（嗜睡） to depression and insomnia（失眠）, but a cure might be in sight.two clinical trials, run by valkee - who make a device that can shine light into your ear - and the university of oulu in finland, have found that carefully targeted

15、light can help prevent the condition.juuso nissilä, valkee's co-founder and chief scientist said: 'we presented earlier that the human brain is sensitive to light.'these two clinical trials show that channeling bright light via ear canal into brain's photosensitive areas effecti

16、vely prevents and treats seasonal affective disorder.'the university of oulu reported that in their first study, 92 percent of the patients with seasonal affective disorder achieved full remission after a month of daily eight-to-12 minute doses of light from the valkee.the results were presented

17、 at the international forum for mood and anxiety disorders in budapest.valkee launched its bright-light headset in august 2010. it is classed as a medical device under eu regulations.the device channels bright light direct to the brain via the ear canal to prevent and cure depression, mood swings an

18、d even circadian-rhythm disorders such as jetlag. it costs £185 and looks like an ipod - only the earphones emit light rather than sound.anyone wanting to copy the effects with a torch is likely to be disappointed, they emit the wrong kind of light that is apparently too yellow.26. according to

19、 the census, _ of the britons suffer from seasonal affective disorder a. 7%. b. 25%. c. 92%. d. 20%. 27. why can the headset run by valkee stop and treat the winter blues affectively? because _.a. the bright light through ear canal can get into brain's photosensitive areasb. the headsets are ver

20、y colorful, which can make sufferers excited c. the earphones can broadcast musicd. the sufferers can chat with others by using the headset28. what does the research tell us about the seasonal affective disorder? a. its impossible to cure the seasonal affective disorder. b. the treatment of the dise

21、ase still has a long way to go. c. years of research has produced no reportable results. d. its possible to cure the seasonal affective disorder. 29. what can we infer from the passage?a. the new medical device looks like an ipod. b. the bright-light headset was launched in 2010. c. it is valkee tha

22、t make the new medical device. d. the torch will not be used for making the bright-light headset. 30. whats the best title of the passage? a. a new ipod for listening to music. b. a new headset for watching videos. c. a new medical device for curing the winter blues. d. a new earphones for treating

23、depression. bwith the tesla roadster and other plug­in (插入式) electric vehicles hitting the road，demand is growing for accessible refueling points to recharge them.carbon day automotive，a chicago­based company，has now demonstrated a solar­powered recharging point，known as the solar plu

24、g­in station，which lets motorists easily charge their cars using electricity that has been produced without any environmental damage.the solar plug­in station has gone on show in chicago as part of the citys bid to host the 2016 olympic games.according to carbon day automotive，the solar pl

25、ug­in station on show in chicago is part of the vital infrastructure(基础设施) required for electric vehicles in chicago and was the focus of a recent visit by the international olympic committee.these solar­powered electricity points will be used daily to fuel the citys electric vehicles with

26、 power from the sun.by producing the electricity from pollution­free solar cell，the co2 emissions are reduced to zero.“solar energy and electric vehicles are a partnership that is one more step to reducing our dependence on foreign oil，” says richard lowenthal，ceo of coulomb technologies.coulom

27、b technologies recently developed the components (部件) required for individual recharging stations，marketed as chargepoint networked charging stations.carbon day automotive is the midwest distributor for the chargepoint stations.the solar plug­in station consists of giant solar panels (电池板) that

28、 shade the tiny chargepoint networked charging station.the solar panel is connected to an underground battery pack，ready for everyday refueling.“without these stations it would be like driving around in a traditional car without the availability of gas stations，” says scott emalfarb，ceo at carbon da

29、y.“the day of true plug­in electric vehicles will be here sooner than most people realize and the world needs to be ready to accommodate them.”31the solar plug­in station is used as part of the bid to host the olympics mainly because _.a. its environmentally friendlybit makes up for the la

30、ck of electricitycits a new idea and attracts peoples attentiondit brings convenience to electric vehicle users32we can learn from the passage that _.ato recharge the electric vehicles takes a long timebthe solar plug­in station will come into use in 2016cthe solar plug­in station has gone

31、 on show internationallydchicago is promoting the use of electric vehicles33according to the passage，how many of the following statements are true?atesla roadster is a kind of plug­in electric vehicle.bthe solar plug­in station uses solar power to charge all of the cars.cchicago is a city，which is rich in oil.dthe solar plug­in station consists of underground battery packs.escott emalfarb is optimistic about the future of plug­in electric vehicles.a3. b2. c4. d5.34the passage implies that when the solar plug­in s