Sentences 11.The North American International Auto Show has traditionally served as an extravagantunveiling of the latest in the automotive industry.2. A new international initiative to increase grain crop yields could help raise incomes for sixmillion farmers in South Asia and combat hunger in one of the poorest regions of the world. 3.The U.S. space agency, NASA, is celebrating the 40th anniversary of the Apollo 8 spacemission.4.At NASA, 2008 will be remembered for shuttle missions, discoveries on Mars, and mysteriesrevealed across the solar system and beyond.5.Three main Internet cables from Italy to North Africa were inexplicably severed in the secondsuch incident in a year, plunging Egypt and several other Arab countries into a communications crisis.6.Clean energies are forms of energy which do not pollute the air, the ground, or the sea. Cleanenergies include:Solar power Wind power Wave powerSalinity gradient power Tidal power Geothermal power7.Solar power describes a number of methods of harnessing energy from the light of the Sun.8.The world seems increasingly divided into those who favor genetically modified (GM) foodsand those who fear them.puter makers are pushing the limits of weight and power.10.Meanwhile, labs are testing new battery technologies.11.One of the most promising new technologies to help achieve that goal is a new breed oflow-powered microprocessors that can vary the speeds at which they operate.12.South Korean scientists clone first dog13.South Korea's pioneering ste14.m cell scientist has cloned a dog15.Snuppy, the first cloned dog, appears with the three-year old male Afghan hound whose cellswere used to clone him.16.Researchers have since cloned cats, goats, cows, mice, pigs, rabbits, horses, deer, mules andgaur,17.Researchers determined that the specimens are around 195,000 years old.18.Many large cities are anything but beautiful.19.If people want to solve the problem of waste, there is no time to be lost.20.They must work out ways of making use of good things which are just thrown away as waste.21.When a car gets too old, it may not run any more. But the metal that the car was made of is stillgood. It can be put to use again.22.When a bottle is empty, it goes out in the trash. But bottle glass can be ground into sand andused to pave streets.23.Garbage from food can be changed into fertilizer. But first you have to fish out all the glass andmetal.24.Garbage can also be a good source for making building blocks, which are then covered withconcrete.25.Now, more and more machines are designed for this purpose.26.Some day, people will watch films in a magnificent cinema which has been built out ofgarbage.27.Future buildings, roads, and cities maybe made from garbage.28.But so far, building beautiful cities out of garbage is only a dream.29.A UFO is the reported sighting of an object or light seen in the sky or on land30.UFOs (sometimes called flying saucers) became widely discussed only after the first widelypublicized U.S. sighting in 194731.At least 90 percent of UFO sightings can be identified as conventional objects, althoughtime-consuming investigations are often necessary for such identification.32.Some persons nevertheless believe that UFOs are extraterrestrial spacecraft33.UFO enthusiasts persist, however, and some persons even claim to have been abducted andtaken aboard UFOs34.A very important world problem is the rapidly increasing pressure of population on the land.35.This enormous increase of population will create immense problems.36.By AD. 2020, unless something terrible happens, there will be as many as 7000000000 peopleon the surface of the earth! So this is a problem which you are going to see in your lifetime.37.However, such vehicles could be some 25 years from appearing on the market.38.Efforts to build flying vehicles in the past have not been very successful.39.Temperatures in some parts of the country have eased a bit over the weekend.40.The air-conditioner has established itself well in the hearts of Americans41.The first widespread use of air-conditioners came during the 1920 when movie theaters usedwhat they called man-made weather to lure customers to the silver scream.42.Many Americans are observing the fifth anniversary of one of the nation's worst naturaldisasters43.Death and destruction from the hurricane and its effects extended along the Gulf Coast.44.Severe ocean storms in the northern part of the world usually develop in late summer or earlyautumn near the equator.45.Ocean storms develop when the air temperature in one area is different from the temperaturenearby.46.The strongest, fastest winds of a hurricane blow in the area known as the eyewall. It surroundsthe center, or eye, of the storm.47.Weather scientists use computer programs to create models that show where a storm might go.48.Doctors in hospital emergency rooms often see accidental poisonings.49.If you know first aid methods, you can be calmer and more helpful in case of emergency.50.However, human activities are threatening the world's coral reefs.51.The researchers say the United States represents more than fifty percent of the trade in coraland reef fish52.Few creatures on earth are as good as sharks at finding their dinners.53.People often say that a shark follows its nose to its meals. Now, scientists have learned moreabout how those noses work to help the much-feared fish direct its movements.54.Extremely hot weather is common in many parts of the world.55.Although hot weather just makes most people feel hot, it can cause serious medical problems,even death.56.The most common health problem linked to hot weather is heat stress.57.Weather scientists use computer programs to create models that show where a storm might go.58.A new report says the Arctic is experiencing some of the most severe climate change on Earth.59.Chicken eggs are used in the process to make flu vaccine.60. A study suggests that dirty air can reduce lung development.61.The scientists found that children who lived in areas with the dirtiest air were five times morelikely to grow up with weak lungs.62.The damage from dirty air was as bad as that found in children with parents who smoke.63.Americans are expected in January to get new advice from the government about what to eatand what to avoid.64.The researchers say diet drinks and unsweetened fruit juice did not appear to cause an increasedrisk of diabetes.65.Doctor Stampfer says it is easier to gain weight from calories in drinks than in foods.66.In real life, scientists have learned something new about this creature which first appeared onEarth about seventy-five million years ago. Dinosaur67.An arboretum is a place where trees and plants are grown for scientific and educationalpurposes.68.The goal of the Arboretum is to carry out studies and provide education in an effort to improvethe environment.69.The World Health Organization says iron deficiency is the most common nutritional disorder inthe world.70.Health experts say iron deficiency is the most common preventable nutritional problems.71.Iron is stored in bone marrow and two organs -- the spleen and liver.72.The World Health Organization estimates that each year almost five million people worldwidedie from the effects of smoking.73.Smoking causes or increases the risk of many diseases. These include cancer and heart disease.74.A small, new study has found that sudden emotional stress can cause heart failure in mostlyhealthy older women.75.Scientists have discovered fourteen kinds of vitamins. They are known as vitamins A, the Bgroup, C, D, E and K.puter industry experts say wi-fi is the fastest growing part of the computer industry.。