12．
Nobody likes waking up in the morning to the sound of alarms（闹钟），but what about the smell of bread and coffee？TheSensorwake appeared at a show in Las Vegas recently．A 19-year-old boy called Guillaume Rolland came up with the idea．He is an engineering student in France．The Sensorwake was successfully raised US$200，000last year，and now he is taking pre-orders that will be sent in the first half of 2016．
Instead of using sound to wake you up，the Sensorwake uses smell．The scent capsule（香味胶囊） was put into the top of the Sensorwake．Each capsule lasts for 30times，meaning you'll get about a month out of a scent before you need to change a new one．There will also be six kinds of scent capsules to sell on the Sensorwake website．Scents are sold in packs．For example，the"Breakfast Pack"comes with one Coffee scent capsule and one Hot Bread capsule．The"Enjoy the Break Pack"includes Seaside （a kind of flower） and Lush Jungle （grass or leaves）．There's also the"Aromatherapy Pack"，which offers a Chocolate scent．
But does the Sensorwake work as well as the alarms to wake you up？Rolland says that the Sensorwake is just as good，with the testing showing his alarm wakes 99percent of people in 2minutes．
However，a study at Brown University in 2004showed that scents didn't work as well as the alarms at waking sleepers．The researchers found that the alarms of sound were more useful at waking the sleepers．
Now，for extra-heavy sleepers or those with stuffed（堵塞的） noses who can't smell the scent well，the Sensorwake prepares a backup（备份的） alarm that will work if the scent hasn't woken them up within 3minutes．
36．According to the passage，the Sensorwake is a kind ofB．
A．capsule B．clock C．robot D．smell
37．People need to change a new scent capsuleC．
A．every day B．every weekC．every month D．every year
38．People will be woken up by the smell ofA in the"Enjoy the Break Pack"．
A．plantsB．drinkC．fruitD．vegetables
39．From the passage，we can know that the SensorwakeB．
A．is just an idea at a show in Las Vegas
B．can use different smells to wake sleepers
C．can wake all kinds of sleepers within two minutes
D．is more useful than the alarms of sound for heavy sleepers
40．What is the best title of the article？C
A．A young inventor．B．Scent capsules．
C．A new type of alarm．D．Different sleepers．
