17．Many people like to have pets at home，but in fact，they are not for everyone．Because they make extra work，cost money and are a responsibility （責(zé)任） for 365days a year．
Pets such as dogs and cats bring in mud （泥土） and leave hairs on the floor and furniture．Young dogs often destroy things．So responsibility is needed if you want to have a pet．If you are often on business or go out，then you should make plans for them first．If not，you'd better not have one．You also need to check how much money you can spend on a pet．Because what the pets eat and drink，even medical care can cost lots of money．
Many parents decide to get a pet because the children want one，but pets are not toys for fun．Some parents expect their children to look after their pets themselves，but such responsibility should never be placed on young children．You can encourage them to help，but when it is not the things that they must do，they will feel bored．
Children who watch their parents feeding the cat，walking the dog，going to the vet （獸醫(yī)） and so on，will understand that this is all parts of normal family life-caring for each other．In fact，it is the same care that they themselves receive from their parents．This is the most basic lesson which children can begin to learn from their earliest days．By watching the family pets receiving love and care，they are learning a valuable lesson．
So when it comes to making a decision-to have or not have a pet-remember that the person who will do most of the work and who must take the responsibility for that pet is YOU．Think about it carefully．
66．The underlined word"destroy"in Paragraph 2probably means"C"．
A．清洗
B．指揮
C．破壞
D．尋找
67．We can know from the passage thatD．
A．dogs and cats are not suitable （適合的） to be kept as pets
B．you mustn't keep a pet if you often go out on business
C．children would only like to keep pets as their toys for fun
D．you must consider it carefully when you want to keep a pet at home
68．According to the writer，the best way parents teach children about love is byD．
A．a(chǎn)sking them to look after the pets
B．walking the dog themselves
C．looking after the pets themselves
D．giving love to the children
69．What is the most important in keeping a pet according to the passage？C
A．Money．
B．Food and drink．
C．Responsibility．
D．Medical care．
70．Which of the following is NOT the writer's idea？A
A．Parents ask their children to look after the pets．
B．Parents should consider how much it will cost to keep a pet．
C．Parents should do most of the work to look after their pets．
D．Parents should encourage their children to help them care for their pets．
