19.It's not easy being a teenager(13至19岁青少年)-nor is it easy being the parent of a teenager.You can make your child feel angry,hurt or misunderstood by what you say without realizing it yourself.It is important to give your child the space he needs to grow while gently letting him know that you'11still be there for him when he needs you.
Expect a lot from your child,just not everything.Except for health and safety problems,such as drug use or careless driving,consider everything else open to discussion.If your child is unwilling to discuss something,don't insist he tell you what's on his mind.The more you insist,the more likely that he'll clam up.Instead,let him attempt to solve(解决)things by himself.At the same time,remind him that you're always there for him should he seek advice or help.
Show respect for your teenager's privacy(隐私).Never read his mail or listen in on personal conversations.
Teach your teenager that the family phone is for the whole family.If your child talks on the family's telephone for too long,tell him he can talk for l5minutes,but then he must stay off the phone for at least all equal period of time.This not only frees up the line so that other family members can make and receive calls,but teaches your teenager moderation(节制).Or if you are open to the idea,allow your teenager his own phone that he pays for with his own pocket money or a part-time job.

33.The main purpose of the text is to tell parentsC.
A.how to get along with a teenager  
B.how to respect a teenager
C.how to help a teenager grow up   
D.how to understand a teenager
34.What does the phrase"clam up"in Paragraph 2 probably mean?A
A.refuse to talk     
B.show respect     
C.become excited    
D.seek help
35.The last paragraph is about how to teach a teenagerA
A.to use the phone in a sensible way    
B.to pay for his own telephone
C.to share the phone with friends      
D.to answer the phone quickly.
4.Terrafugia Inc.said Monday that its new flying car has completed its first flight,bringing the company closer to its goal of selling the flying car within the next year.The vehicle-named the Transition-has two seats,four wheels and wings that fold up so it can be driven like a car.The Transition,which flew at 1,400 feet for eight minutes last month,can reach around 70 miles per hour on the road and 115 in the air.It flies using a 23-gallon tank of gas and burns 5 gallons per hour in the air.On the ground,it gets 35 miles per gallon.
      Around 100 people have already put down a﹩10,000 deposit to get a Transition when they go on sale,and those numbers will likely rise after Terrafugia introduces the Transition to the public later this week at the New York Auto Show.But don't  expect it to show up in too many driveways.It's expected to cost﹩279,000.And it won't  help if you're stuck in traffic.The car needs a runway.
      Inventors have been trying to make flying cars since the 1930s,according to Robert Mann,an airline industry expert.But Mann thinks Terrafugia has come closer than anyone to making the flying car a reality.The government has already permitted the company to use special materials to make it easier for the vehicle to fly.The Transition  is now going through crash tests to make sure it meets federal safety standards.
      Mann said Terrafugia was helped by the Federal Aviation Administration's decision five years ago to create a separate set of standards for light sport aircraft,which are lower than those for pilots of larger planes.Terrafugia says an owner would need to pass a test and complete 20 hours of flying time to be able to fly the Transition,a requirement pilots would find relatively easy to meet.
 
28.What is the first paragraph mainly about?A
A.The basic data of the Transition.
B.The advantages of flying cars.
C.The potential market for flying cars.
C.The designers of the Transition.
29.Why is the Transition unlikely to show up in too many driveways?C
A.It causes traffic jams.
B.It is difficult to operate.
C.It is very expensive.
D.It burns too much fuel.
30.What is the government's attitude to the development of the flying car?B
A.Cautious.
B.Favorable.
C.Ambiguous.
D.Disapproving.
31.What is the best title for the text?D
A.Flying Car at Auto Show          B.The Transition's First Flight
C.Pilots'Dream Coming True         D.Flying Car Closer to Reality.
1.Ho Khanh is a middle-aged farmer,living in a village on the edge of Phong-Nha-Ke Bang National Park in Vietnam.What is special about him is that he has discovered Son Doong,the largest cave in the world.
"I first found the cave more than twenty years ago,in 1991,"he says."I was out collecting firewood near the national park.My family were very poor,so I decided to go deeper into the forest to find some aloe (芦荟),which is very valuable.Not many people went that far into the forest because they were afraid of the wild animals."
Soon Khanh lost his way."I sat down with my back to a huge round rock,"he says."Then I heard the sound of a strong wind and running water coming from behind me."He found the entrance to a huge cave,with a wide river coming out of it.Khanh thought he was walking into a great cave.With no ropes or lights,he did not go further into it.
Khanh's story spread like wildfire,but not everyone believed him."I wanted to prove that I was telling the truth,but I couldn't remember the way to the cave."Then one morning early in the winter of 2006,a group of cavers from Britain came to ask Khanh for help,as they had heard about his discovery fifteen years before.
Khanh agreed to help the team to find the cave,but after three days in the jungle (丛林),they lost their way."I just couldn't remember where it was,"he says.The team came back twice,but each time they were beaten by the thick jungle.Finally the cavers left.
In 2009,Khanh headed to the jungle one cold winter's morning."I stopped by a big round rock,"he says."There was the same strong wind,the sound of water running----I knew I'd found the cave at last."Soon the British cavers returned and followed Khanh on a six-hour trip deep into the jungle.On April 14they found Son Doong.

4.How did Khanh discover Son Doong?A
A.By accident completely.
B.By following wild animals.
C.Through ropes and lights.
D.With the help of British cavers.
5.How long did it take Khanh to prove he discovered Son Doong?C
A.About three years.
B.About fifteen years.
C.About eighteen years.
D.About twenty years.
6.What did the British cavers think of Khanh's story?B
A.Doubtful.          B.Reliable.
C.False.             D.Ridiculous.
7.It can be inferred from the passage thatC.
A.there is little water in the Son Doong
B.there is a lot of aloe in Son Doong
C.there is a huge rock at the entrance to Son Doong
D.there is the largest national park near Son Doong.

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