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PEPERIKSAAN PERCUBAAN SIJIL PELAJARAN MALAYSIA PORTAL PENDIDIKAN UTUSAN 2005 ENGLISH FOR SCIENCE AND TECHNOLOGY Paper 1 One hour Fifteen minutes

Portal Pendidikan Utusan 2005 © Hak Cipta Terpelihara Utusan Melayu (M) Berhad, Kuala Lumpur

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SECTION A [ 20 marks] You are advised to spend 30 minutes on this section. Part 1 Read the text below. Do you know how easy it is to injure your feet? According to the American Academy of Orthopedic Surgeoens, 43 million Americans have foot problems, costing 3.5 billion a year in treatment and lost workdays. Most injuries are avoidable if we choose the right footwear for a particular activitiy. Start by examining one of your sneakers on a flat surface. If the heel is worn more on the inside than the outside, you are a pronator. That means you roll your feet inward each time your heel strikes the ground. You need a control shoe specially built to counteract this tendency. If your heel is worn more on the outside than the inside, you’re an underpronator, which means you ought to wear a shoe with more cushioning. Many people assume that it is alright to walk in almost any shoe because it’s not as demanding as running. Not true, says Dr. Carol Frye of the orthopedic academy: “Walking shoes should be at least 6.5 cm thick in the heel area,giving you comfortable cushioning, and have a rocker-sole design that encourages the foot’s natural roll as you move.” When you’re trying on sneakers, do it 30 minutes to one hour after you’ve exercised so that the foot is still fully expanded. Always wear the sort of socks you’ll be wearing during the sport, and check that you have a thumb’s width of space between the tip of your toes and the front of your sneakers, giving enough room to wiggle them. (Source: Time, Oct.16th 1999.) Based on the information from the text, complete the table below. Definitions: 1. Pronator

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2.

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Underpronator

How to avoid foot injuries: Examine the shoe heel for ……………………………………………. 1. ……………………………………………………………………………. 2.

When buying sneakers ……………………………………………………. ………………………………………………………………………………….

3.

When walking, …………………………………………………………….. ………………………………………………………………………………

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(10 marks ) Part 2 Read the following text and complete the given task. _________________________________________________________________________ Listed below are some guidelines on how to promote liver health. Very often, Man takes his health and the organs in his body for granted. In doing so, we tend to overlook the important organs in our body. It is hoped that the guidelines below about our liver will make us stop and think twice.

HOW TO PROMOTE LIVER HEALTH 1. Lungs & Big Intestines share the system. If one or the other is infected or sick, the other will also be sick. 2. When the Liver is in pain, there is not much signs or symptoms to be detected. Before many cancers happen, usually the Liver will be the first to get sick. 3. Liver filters out the poisons and it attacks all other viruses in the body. 4. 99% Chinese have weak livers as they eat a lot of meat, and high fat foods. 5. The Liver‘s repair time is effective from 11pm – 3am. Therefore, Sleeping late after 11pm & having late night supper 2 hours before sleep especially high cholesterol and high fat foods weakens the Liver as it does not have sufficient time to rest and regenerate. Even when one sleeps in later in the morning to replace loss sleep will not help. 6. If you get very hungry just before bedtime, eat some fruits & vegetables which is easy to digest. Meat takes about 4 hours to digest before it goes into the intestines. Meat cooked in oil takes about 12 hours before going into the intestines. This will provoke the Liver & the digestive tract to overwork in filtering the toxins thus U will tend to feel very tired when U wake up in the morning. 7. Oil is the main culprit that will weaken the functions of the Liver and damage it. Medication cannot cure Liver problem and it will damage it even further. 8. Cold-pressed Olive oil, carrot, cucumber, raw chili, garlic, onion, little bamboo salt/ sea-salt, radish, pumpkin and small fish are good for the body. Sesame oil is ok. 9. Food-preservatives, Food colourings, Bee Hoon is processed with Aluminium (causes Dementia), Bleach, syrup, Pesticides are bad for Liver health. Wrong medication can shrink and damage the Liver badly. Radiation from Microwave oven destroys all nutrients in the food. 10. Western medication is bad for the Liver. Chinese medication is bad for Kidney. White radish will disable the effects of the Chinese medication.

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Based on the information in the text above, identify the important points to answer the given questions. 1.

Name two functions of the liver? a) _______________________________________________________ b)

_______________________________________________________ ( 4 marks )

2.

How do we maintain a healthy liver? _______________________________________________________ _______________________________________________________ ( 2 marks )

3.

State two bad habits that may cause liver damage. a) _______________________________________________________ b)

_______________________________________________________ ( 4 marks )

Portal Pendidikan Utusan 2005 © Hak Cipta Terpelihara Utusan Melayu (M) Berhad, Kuala Lumpur

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Section B [ 30 marks ] You are advised to spend 45 minutes on this section. If two or more simple machines work together as one, they form a compound machine. Most of the machines we use today are compound machines, created by combining several simple machines. You have been given the following three simple machines. You have to design and create a new compound machine of your own.. Choose any two machines that you wish to make use of. Then, give reasons for your choice.

Wheel and Axle The rotation of the lever against a point pries objects loose. That rotation motion can also do other kinds of work. Another kind of lever, the wheel and axle, moves objects across distances The wheel, the round end, turns the axle, the cylindrical post, causing movement.On a wagon for example, the bucket rests on top of the axle As the wheel rotates the axle, the wagon moves. Now, place your pet dog in the bucket, and you can easily move him around the yard. On a truck, for example, the cargo hold rests on top of several axles. As the wheels rotate the axles, the truck moves,

Portal Pendidikan Utusan 2005 © Hak Cipta Terpelihara Utusan Melayu (M) Berhad, Kuala Lumpur

Pulley Instead of an axle, the wheel could also rotate a rope or cord. This variation of the wheel and axle is the pulley. In a pulley, a cord wraps around a wheel. As the wheel rotates, the cord moves in either direction Now, attach a hook to the cord, and you can use the wheel's rotation to raise and lower objects. On a flagpole, for example, a rope is attached to a pulley. On the rope, there are usually two hooks. The cord rotates around the pulley and lowers the hooks where you can attach the flag. Then, rotate the cord and the flag raises high on the pole.

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Lever Try pulling a really stubborn weed out of the ground. Try pulling a really stubborn weed out of the ground, it might be difficult or even painful. With a tool, like a hand shovel, however, you should win the battle. Any tool that pries something loose is a lever. A lever is an arm that "pivots" (or turns) against a "fulcrum" (or point). Think of the claw end of a hammer that you use to pry nails loose. It's a lever. It's a curved arm that rests against a point on a surface. As you rotate the curved arm, it pries the nail loose from the surface. And that's hard work! =================================================================== Write a report to your Science teacher. Explain to her which two machines you have decided to use and why. Your report should include the following:• • •

the two machines that you have selected. reasons for your choice the name of your new creation and what it can do.

Your report should be not more than 200 words. ------------------------------------------------------------------------------------------------------------------

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