Read the article and select the best answer. Article: Last week, I bought an alarm system for about $ 450. It consisted of a control unit with three small units. I put the control unit in the sitting-room and fastened the other units by the front door, back door and living-room windows. The instructions told us to choose three numbers, so we chose 491, the last three numbers of our telephone number. Now I will explain how the alarm works: 1. There is a power siren in the control unit. It makes a very loud noise. 2. Each of the small units sends out beams or rays in different directions. If anything moves, it breaks a beam. This sends signal to the control unit. The siren makes a noise which you can hear 50 meters away. 3. When we go to bed, I press the three buttons numbered 4, 9 and 1. Then we have 30 seconds to get out of the room before the alarm starts to work. That night I slept soundly because I was sure that no burglar could get into our house. However, at about 2:10 a. m. , I woke up and heard the siren. "There must be a burglar in the house?" Mary said, "What shall we do?" "I'll go and see who's there," I said, "Stay here. Don't make a noise. " I went down stairs quietly. When I reached the living-room, I switched on my torch and looked round the room. Then I turned the light on. I switched the siren off and searched the rooms downstairs. There was nothing wrong except that the back door was unlocked. I locked it, re-set the alarm and went back to bed. About an hour later, the alarm started again. I jumped out of bed, fell over a chair in the dark and bumped into the bedroom door. Mary woke up and started hitting me with a torch. "Hey! Wait a minute!" I whispered, "It's only me. I'm going downstairs to see what's wrong." I went down into the living-room and listened for a moment. The only sound I could hear was the siren. I tamed on the light and switched the siren off. As I did so, I glanced across at the curtains in front of the windows. I saw a house lizard (a kind of small animals) disappear behind the curtains. "Oh!" I said to myself. "That's our... Question: The purpose of the three units was to _ . Options: A: sound their own siren when the control unit told them to B: send a message to the control unit and start the siren C: check that the control unit worked properly all the time D: give them enough light
B

Read the article and select the best answer. Article: Recently a Beijing father asked what "PK' meant at an Internet forum. "My family has been watching the ' Super Girl' singing competition TV programme . My little daughter asked me what'PK'meant. but I had no idea. "explained the puzzled father. To a lot of Chinese young people who have been playing games online. it is impossible not to know this term. In such Internet games, "PK" is short for -Player Kill", in which two players fight until one ends the life of the other. In the case of the -Super Girl" singing competition, "PK" was used to refer to the stage where two singers have to compete with each other for only one chance to go up in competition ranking. Like this father, Chinese teachers at high schools have also been finding their students' compositions using Internet jargons which are difficult to understand. A high school teacher from Tianjin asked her students to write compositions with simple language, but they came up with a lot of Internet jargons that she didn't understand. "My 'GG' came back this summer from college. He told me I've grown up to be a 'PLMM' . I loved to 'FB' with him together ; he always took me to the 'KPM' . " went one composition. "GG" means Ge Ge (Chinese pinyin for brother) . "PLMM" refers to Piao Liang Mei Hei (beautiful girl). "FB" means Fu Bai (corruption). "KPM" is short for KFC. Pizza Hut and McDonald's. Some specialists welcome Internet jargons as a new development in language. If you do not even know what a Kong Long (dinosaur. referring to an ugly looking female) or a Qing Wa (frog. referring to an ugly looking male) is, you will possibly be regarded as a Cai Niao! Question: What does the writer think about the term "PK'? Options: A: Fathers can' t possibly know it. B: The daughter should understand it. C: Online game players may know it. D: "Super Girl" shouldn't have used it.
C

*Question*
Read the article and select the best answer. Article: Is early childhood education really necessary ? Early childhood education primarily focuses on learning through playing to develop the child's physical , sensory , communicational and social development . Early childhood education has become a concern of the government , who pushes poor children to be formally trained before they are old enough for kindergarten . There are good reasons for the government to push early childhood education . Studies have shown that orphaned children who did not receive good care and education become developmentally delayed causing failure in school , and even in life. Further studies show that poor children who take part in Head Start programs are more prepared for school , less likely to end up in Special Education classes , and are less likely to receive public help or go to jail (prison) . There are also negative parts to putting a child in formal education programs too early . Time Magazine Online explains that " the younger the child is , the less his chances of catching up with first-grade work ." I have personally witnessed many children of my generation who went to Head Start programs become frustrated and bored with school before they finished high school . Yet parents have been sure that the earlier the child starts school , the better off he or she is , so they push to start children earlier . Actually while early formal education of poor children does show great gains in the early elementary years , studies also show that this head start is really a " false start" , as the gains are lost in middle and high school years. It seems that environment is a bigger factor on life's success than early education . Head Start programs have not achieved its original goal in closing the achievement gap in poor and middle school children. Perhaps it is time to find other ways to close that gap . Question: According to the studies , _ . Options: A: children with good early education may have a rich life B: the orphaned children are usually unhappy in their life C: children without early education can do well at school D: Head Start programs are helpful to the poor children
**Answer**
D