Lesson №15 Types of Correction code

Read the paragraph, identify mistakes and correct using correction codes
What Is Autism?

Autism is a developmental disability that until the 1940s was unrecognized. In 1988, the film Rain Man starring Dustin Hoffman bring the condition to greater public aweraness. Now some researchers claims that one in every 91 american children has some form of autism. This is because the definition has broadened to include a wide range of identifying symptoms. The three symptoms most distinctive that lead to a diagnosis of autism are (1) a difficulty with social interaction, (2) a problem with verbal and nonverbal communication, and (3) repetitive actions or obsessive interests. For instance a parent may slowly realize that a child is not making eye contact or smiling. Sometimes a child is developing normally and then suddenly loses language, social skill. Experts point out that

autism is not to be confused with brain retardation. Autistic children often are gifted in one or more areas. While there is still much to learn about the syndrome.

The Future Car

Everyone know that this country must develop cars that are more efficient and less poluting. Today’s internal combustion engine uses only 13% of its fuel to move the vehicle. The race is on to find the car of the future. At present, five basic types cars are in different stages of development. The first type is the hypercar. This automobile continues to use gasonline or alternative fuels like ethanol to power the car but the car itself as well as the engine has dramatic new designs that improve its efficiency. The second type of car is the electric car. This car uses hybrid electric batteries to store energy, but its main disadvantage is its dependence on frequent recharging.

The third type is the hybrid car. While this car continues to use gasoline, it also uses batteries that can improve the efficiency. The fourth type is a car run by hydrogen fuel cells. Its advantage is that the only emission it produces is water, many other problems remain. The fifth type is the solar powered car. Unfortunately, when ever there is no sunlight for a number of days, there isn’t power. No single type of car it has yet emerged as the perfect solution

although some, like the hybrid, are available for purchase now. We will have to wait and see if any alternative saving- energy car will be a clear winner in the race for a better and more environment friendly car.