Recently children have been told to buy traditional alarm clocks instead of mobile phones to wake them up in the morning． Schools will advise pupils to turn off mobile phones or iPads in the evening to have enough sleep．

    Researchers from a charity say that using internet﹣connected devices（装置）in the evening can prevent children getting more rest． Moreover， they suggest that school children should invest in a real alarm clock to make sure that they get a good night's sleep and arrive at school on time．

①_____． The result is that 40% pupils in secondary schools can now hardly get on well without these devices． About two﹣thirds of pupils have a habit of taking mobile phones to bed at night．

②______．The study also shows that girls are more likely to be attracted by mobile phones than boys， and often use the Internet to talk to friends by social networking websites， such as Facebook and Twitter． One girl aged 12 said， "I have been told that I am addicted（上瘾的）to the Internet， and prefer being online to being with other people．"

③_______．A girl of 13 told researchers， "I can't imagine if someone takes my iPad away． I walk around the house with it even though it's not turned on． I just like being with it．" Another girl added， "Sometimes I can't sleep without using the mobile phone at night．"

④______．The charity， which was set up to promote（推动）iPads in the classroom， has now given five suggestions to protect children from being affected by electronic（电子的）devices．

（1）To get a good night's sleep， school pupils are asked to buy　　．

A． iPads

B． alarm clocks

C． mobile phones

D． electronic devices

（2）The underlined words "invest in" in Paragraph（段落）2 mean　　．

A． hand out

B． hand in

C． spend time on

D． spend money on

（3）It is better to put "A study of about 3000 pupils shows that almost half feel to be controlled by electronic devices" in　　．

A． ①

B． ②

C． ③

D． ④

（4）From the passage， we can learn that　　．

A． most pupils turn off their mobile phones in the evening

B． using mobile phones can make children get more rest

C． one﹣third of pupils get used to sleeping with mobile phones

D． girls are more interested in using mobile phones than boys

（5）What will be talked about in the following paragraph？　　

A． Examples of boys．

B． More information about the charity．

C． The tips given to children．

D． Instructions about electronic devices