19．根据句意及音标选择正确的单词．If your friends are having problems.you should /'?f?A．openB．alwaysC．offe——青夏教育精英家教网——

19．根据句意及音标选择正确的单词．
If your friends are having problems，you should __________/'?f?（r）/to help．（　　）

18．Betty is verylucky （luck） to win a prize （奖品）like this．

17．to  behavior  they  stress  while  habit  stop  easy  care  who
Why some of us bite our nails？
Sometimes，we see some people reading books  （51）while biting（咬） their nails（指甲）．We may think it is a kind of  （52）behavior，that means they are focused（专心地）．But in fact，it is more than that and science has proved it．
Nail biting can begin at an early age．According to the BBC，up （53）to 45percent of teenagers bite their nails．
There is not an exact answer to explain why people bite their nails．But most commonly，nail biting is said to be a nervous （54）habit．It is done because of stress，boredom（无聊） or excitement．
What's more，scientists found that people with higher levels of intelligence（智力） are the ones  （55）who  start biting their nails at an early age．They believe that compared with the average person，those with higher levels of intelligence may feel higher levels of stress more （56）easily．
This habit is bad to the biters．It can give （57）them red or sore fingertips．And long-term nail biting can affect nails grow．
But don't worry!There are many ways to （58）stop biting your nails．First，keeping your nails clean．The more you focus on taking （59）care  of your nails，the less likely you are to start biting them again．Also，when you feel （60）stressed，try to relax．Doing exercise or having a warm bath both help．

16．Mr Black is going to give a ① party for Betty．Betty is his daughter． ②Betty is going to be fifteen years old．Betty has many good friends． ③他们中的一些are going to come to the party．
Mr Black is getting ready for the party，and Mrs Black is helping him．They're going ④ now．Mr Black buys a big and beautiful cake and some fruit．They're pears，oranges，apples and bananas．Then they go home．
It's three thirty in the afternoon．Everything is ready．
Now，the first friend-Mary is coming．The birthday party is going to start in thirty minutes．
71．在①处填上一个合适的单词．
birthday
72．将②处画线句子译成汉语．
贝蒂将要15岁了
73．将③处画线部分译成英语．
Some of them
74．在④处用shop的适当形式填空．
shopping
75．What time will Betty's birthday party start？
At 4：00/At four o'clock．

A．Would you like to go with me？
B．I'm going to look after your grandma with you．
C．Because my parents aren't at home，and I have to look after（照顾） my grandma．
D．Are you going to play games with her？
E．She is eighty years old．
F．I'm going to buy some clothes．
G．What are you going to do on Sunday？

Betty：Hi，Alex!（66）G
Alex：I'm going to go cycling．（67）A
Betty：I'd love to，but I can't go out．
Alex：Why？
Betty：（68）C
Alex：How old is your grandma？
Betty：（69）E
Alex：Oh，I see．I'm not going to go cycling．（70）B
Betty：Really？Thank you very much!
Alex：You're welcome．

14．We must be quiet in the library．

13．Forty and fifty is ninety，right？

12．Halfan hour is thirty minutes．

11．66．Why don't you like tigers？F
67．What club do you want to join in？A
68．When do your friends exercise？D
69．Can we eat in the classroom？E
70．What do you have to do？B

A．We want to join the art club．
B．We must go to school on time．
C．Yes，we have to．
D．They usually exercise on weekends
E．No，we can't．But we can eat in the dinning hall．
F．Because they are very scary．
G．No，you must．

10．Look!your sisteris doing（do） her homework．

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