A smile will tell people around you that you are a kind and friendly person．However, many people don't smile because they think they ugly teeth．For example, one of my classmates, Mile, doesn't have very nice teeth, so that is why he seldom opens his mouth．he even says that he has lost confidence because of his teeth．So it is very important for us to look after our teeth．In fact, a lot of people have this problem．Some people inherit teeth problems from their parents, while others' teeth are damaged because of bad habits, like heavy smoking, eating too much sugar or not brushing teeth often．If your teeth are in bad shape, you should see a dentist and ask for help．They can help improve your teeth and tell you how to take care of then．
Smiling can help you to feel more confident and make other people think of you as a more friendly person．If you want to keep healthy, you should not only smile but also laugh．An Indian doctor called Kataria said that young children should laugh about 300 times a day, wile adults should laugh between 7 and 15 times a day．So please take this chance to smile and laugh now!
根据短文内容，选出一个最佳答案填入题前括号内。
(1)
What has made Mike lose his confidence?
[ ]
A．
His bad habit．
B．
His bad teeth．
C．
Not smiling．
D．
Eating too much sugar．
(2)
Many people don't smile because ________．
[ ]
A．
they don't like smiling
B．
they think they are ugly
C．
their teeth are not beautiful
D．
they can't open their mouths
(3)
What can a dentist do according to the passage?
[ ]
A．
A dentist can tell you how to improve your bad teeth．
B．
A dentist can help you to take care of your bad teeth．
C．
A dentist can tell you how to brush your teeth．
D．
Both A and B．
(4)
If you want to keep healthy, you had better ________．
[ ]
A．
not smile often
B．
laugh all the time
C．
neiter smile nor laugh
D．
smile and even laugh often
(5)
How many times should a child laugh every day in doctor Kataria's opinion?
French doctors and American scientists have reported doing an operation in which the doctor was outside the operating room．This kind of operation is known as robotic operation．
Doctor Marescaux did the operation in an office in New York City last month, while a sixty-eight-year-old woman patient was in a hospital in Strasbourg, France．
A doctor in Strasbourg got the patient ready．He placed medical tools and a small video camera in her stomach area．Doctor Marescaux in New York watched the patient on a video screen．Then he used the computer to send messages to the robot machine．The robot moved the tools that cut the woman’s gallbladder(胆囊)away．The woman got well soon after the operation and left the hospital two days later．
Experts say the main problem with such a robotic operation is based on high-speed telecommunications between the doctor and the robot．Technology must be able to send a doctor’s order to a robot to move the tools quickly．
Experts also say a successful robotic operation will improve an operation．For example, the robot can make much smaller movements than a person can．A robot machine can turn tools in ways that a doctor’s hand cannot．
Doctors say such a robotic operation will make possible safer and better operations in the future．They say it will improve doctor training．It will also mean that doctors could do an operation on people in dangerous places far away．And it could mean that people could have operations done by top doctors without having to travel to the city where doctors work．
(1)
“Robotic operation”means“________”．
[ ]
A．
a special kind of robot invented by doctors
B．
an operation done far away
C．
an operation done with the help of a robot
D．
something done to mend a robot
(2)
We use the robot in the operation because ________．
[ ]
A．
it can send messages at a high speed
B．
even a top doctor can’t do the operation himself
C．
it can make the operation safer and better
D．
operations can be done without any doctors
(3)
If we want to use the robot in the operation, we must solve the problem of ________．
[ ]
A．
top doctors
B．
smaller movements
C．
doctor training
D．
high-speed telecommunications
(4)
If the smaller movement can’t be done by doctors in the operation, we may use ________ to solve it．
We have just returned from our holiday.we went with our friends Edward Smith and his wife Tina to the Yorkshire Moors.This is a beautiful place.It is a natural park.There are lots of places to walk on the tops of the hills,miles of grassland with no people,just sheep and birds.
Edward,who had just come out of hospital,could not walk as far as he used to.However this meant that we walked in the mornings,and then stopped at a care for lunch,each day,before returning to the place where we lived in.Edward and I slept in front of the fire all afternoon,while the ladies went for another walk.Very pleasant!
I have taken lots of photos from the place we lived in,across the valley(峡谷) below us,ot the morning sunrise,and the mist in the valley.Also,in England,the old steam powered trains(蒸汽火车) are very popular.I have taken many photos of the train and from it.
Yesterday we had the first snow of this winter.It is very early(We usually expect snow in January).It rained all day,then snowed in the evening.Today We have bright sunshine!
Both Jenny and I are well.I don't know if I told you,in the last e-mail.that Jenny is now working in a hotel.Although she has to work hard,people there are nice and she is enjoying the work.
南大教辅抢先起跑暑假衔接教程南京大学出版社系列答案