1 Which one is different? Why? ► cow sheep salmon pig Salmon, because it’s a fish. 1 cow pig pork sheep , because .

A . sufficient quantity； measured B . measured quantity；sufficient C . excessive quantity；sufficient D . the less quantity the better；the more the better

A . New properties for better control of the JSF lifecycle B . Domino Designer built on top of Eclipse C . JavaScript interpreter performance D . End user experience / browser rendering

A . ISDN B . Frame Relay C . ATM D . FDDI

A . in an area of high density the water's surface is lower than in an area of low density B . surface water flows from an area of high density to one of low density C . the lesser the density gradient the freer the water is to move D . it is the density differences that cause the currents to stay in the trough

A . white B . red C . blue D . green

A . show ip eigrp topology B . show ip eigrp topology all - links C . show ip route eigrp D . show ip route eigrp all - links E . show ip eigrp topology all - learned

Write your answers in boxes 1-6 on your Answer Sheet. NOTE: you may use any answer more than once. A．nebula B．main sequence star C．red giant D．white dwarf E．black dwarf F．supernova G．neutron star H．black hole the Sun ______

A. show ip eigrp topology B. show ip eigrp topology all - links C. show ip route eigrp D. show ip route eigrp all - links E. show ip eigrp topology all - learned

Another way is energy conservation (节能 ), which means using energy more efficiently (有效地 ). In some very cold countries people build special houses to save energy. They place materials between the inside and the outside of the walls of the house to keep the cold out and the warmth in. The house is heated by the lights, the body heat of the people and the other equipment in it. Finally, renewable energy sources are used even though they are often expensive to develop. One form. of these is geothermal energy. In certain parts of the world the temperature of the earth increases thirty degrees centigrade with each kilometer down. At six kilometers, therefore, it rises to nearly two hundred degrees. To get the heat, water is pumped (压;抽 ) down into the rocks and back up to the surface. Heat from the earth is already used in certain countries. 1、How many ways of dealing with the energy problem are discussed in the text？ () A、Two. B、Three. C、Four. D、Five. 2、From the text we learn that coal(). A、is quite easy to produce B、is not used most efficiently C、is the most common source of energy D、could be renewed only by new technology 3、The writer tells about the "special houses" because they(). A、show the excellent skills of the builders B、serve as an example of energy conservation C、are heated by different sources of energy D、are warmer than other types of houses 4、The underlined words "geothermal energy" in the third paragraph mean (). A、renewable source B、 underground source C、 heat inside the earth D、 temperature of the earth 5、At a place where the surface temperature is 15°C, how deep do you have to dig so as to get a temperature of 75 °C ？ () A、One km. B、 Two km. C、 Three km. D、 Four km

Using placebos to test drugs sometimes has a surprising result. Researchers say people taking the placebo often report improvements in their health. This is known as "the placebo effect"--pain that is eased or stopped by an inactive substance. In such testing, the drug must perform. better than the placebo to prove that it is effective. Doctors have reported that the placebo effect can be used in treatment. For example, a doctor tells a patient that a new drug will stop the pain in his leg. The pill is only sugar. But the patient does not know that. He takes the pill and says his pain is gone. Scientists are beginning to discover some physical reasons for this reaction in some people. They are learning that much of what people believe to be true comes from what the brain expects is going to happen. If the brain believes a drug will ease pain, the brain may begin physical changes in the body that can cause the expected effect. A recent examination of studies on drugs for depression found that placebos eased the depression about as well as the active drugs. Other studies have explored the power of placebos. A study in Japan involved thirteen people who reacted to the poison ivy (常青藤)plant. Poison-ivy causes red itchy sores(伤痕)on some people who touch it. Each person was rubbed on one arm with a harmless leaf, but was told it was poison ivy. Each person was then touched on the other arm with poison ivy, but was told it was a harmless leaf. All thirteen people developed a reaction on the arm where the harmless leaf touched their skin. Only two reacted to the poison ivy leaves. Doctors and scientists worry that the use of placebos may not always be harmless. They say people can become victims of false doctors and others who use placebos to claim they can cure disease. What do medical researchers usually use to make placebo pills？ A．Ivy leaves. B．Harmless leaves. C．Medicine being tested. D．sugar.

A．The amount of Vitamin D intake for the author"s first child is a half of that for her third child. B．The author"s new born baby was taking Vitamin D pills. C．Sunshine can help produce Vitamin D. D．The author"s second child did not have any Vitamin D supplement when born.

A．compromise B．tradition C．individual D．Energetic

A．展子虔 Zhan Ziqian B．李思训 Li Sixun C．王墨 Wang Mo D．王维 Wang Wei

A．A.aspiration B．B.obstruction C．C.voicing D．D.transition

A. for which B. for that C. in that D. in which