Human body is made up of countless millions of cells. Food is needed to built up new cells and replace the worn out cells. However, the food that we take must be changed into substances that can be carried in the blood to the places where they are needed. This process is called digestion.
The first digestive process takes place in the mouth. The food we eat is broken up into small pieces by the action of teeth, mixed with saliva, a juice secreted by glands in the mouth. Saliva contains digestive juice which moisten the food, so it can be swallowed easily.
From the mouth, food passes through the esophagus (the food passage) into the stomach. Here, the food is mixed with the juices secreted by the cells in the stomach for several hours. Then the food enters the small intestine. All the time the muscular walls of the intestine are squeezing, mixing and moving the food onwards.
In a few hours, the food changes into acids. These are soon absorbed by the villi (microscopic branch projections from the intestine walls) and passed into the bloodstream.
5. What is the text about?
A. The digestive system
B. The digestive juice
C. The method of the digestive system
D. The process of intestine work
E. The food substances
6. How can we swallow the food easily?
A. The food changes into acids absorbed by the villi.
B. The food must be digested first through the process.
C. The food is directly swallowed through esophagus into the stomach.
D. The food is mixed with the juices secreted by the cells in the stomach.
E. The food we take must be changed into substances carried in the blood to the places.
7. From the text above, we imply that ….
A. a good process of digestive system will help our body becoming healthier.
B. no one concerned with the process of digestive system for their health.
C. the digestive system is needed if we are eating the food instantly.
D. every body must conduct the processes of digestive system well.
E. the better we digest the food we eat, the healthier we will be.
8. Human body is made up of countless millions of cells. (Paragraph 1)
The phrase made up means ….
A. Produced
B. Managed
C. Arranged
D. Completed
E. Constructed
Have you ever wondered how people get chocolate from? In this article we’ll enter the amazing world of chocolate so you can understand exactly what you’re eating Chocolate starts with a tree called the cacao tree. This tree grows in equatorial regions, especially in places such as South America, Africa, and Indonesia. The cacao tree produces a fruit about the size of a small pine apple. Inside the fruit are the
tree’s seeds, also known as cocoa beans.
The beans are fermented for about a week, dried in the sun and then shipped to the chocolate maker. The chocolate maker starts by roasting the beans to bring out the flavour. Different beans from different places have different qualities and flavor, so they are often sorted and blended to produce a distinctive mix. Next, the roasted beans are winnowed. Winnowing removes the meat nib of the cacao bean from its shell. Then, the nibs are blended. The blended nibs are ground to make it a liquid.
The liquid is called chocolate liquor. It tastes bitter. All seeds contain some amount of fat, and cacao beans are not different. However, cacao beans are half fat, which is why the ground nibs form liquid. It’s pure bitter chocolate.
9. The text is about ….
A. the cacao tree
B. the cacao beans
C. the raw chocolate
D. the making of chocolate
E. the flavour of chocolate
10. The third paragraph focuses on ….
A. the process of producing chocolate
B. how to produce the cocoa flavour
C. where chocolate comes from
D. the chocolate liquor
E. the cacao fruit
11. …so they are often sorted and blended to produce … (Paragraph 3.) The word sorted
has the closest meaning to ….
A. Arranged
B. Combined
C. Separated
D. Distributed
E. Organized
12. How does the chocolate maker start to make chocolate?
A. By fermenting the beans.
B. By roasting the beans
C. By blending the beans.
D. By sorting the beans.
E. By drying the beans
What is photosynthesis? Photosynthesis is a food-making process that occurs in green plants. It is the chief function of leaves. The word photosynthesis means putting together with light. Green plants use energy from light to combine carbon dioxide and water to make sugar and other chemical compounds.
How is the light used in photosynthesis? The light used in photosynthesis is absorbed by a green pigment called chlorophyll. Each food-making cell in a plant leaf contains chlorophyll in small bodies called chloroplasts. In chloroplast, light energy causes water drawn form the soil to split into hydrogen and oxygen.
What are the steps of photosynthesis process? Let me tell you the process of photosynthesis, in a series of complicated steps, the hydrogen combines with carbon dioxide from the air, forming a simple sugar. Oxygen from the water molecules is given off in the process. From sugar together with nitrogen, sulphur, and phosporus from the soil-green plants can make starch, fat, protein, vitamins, and other complex compounds essential for life. Photosynthesis provides the chemical energy that is needed to produced these compounds.
13. What step after the hydrogen combines with carbon dioxide from the air …
A. Photosynthesis provides the chemical energy that is needed to produced these compounds.
B. Water drawn form the soil to split into hydrogen and oxygen.
C. Food-making process that occurs in green plants.
D. Phosporus from the soil-green plants can make starch, fat, protein,
vitamins, and other complex compounds essential for life.
E. Oxygen from the water molecules is given off in the process.
14. What are photosynthesis need ….
A. Water, light, oxygen, worm
B. Soil, chlorophyll, sun, human
C. Bug, air, oxigen, food
D. Light, Carbon dioxide, humus
E. Candle, vitamins, hydrogen
15. What the product of photosynthesis ….
A. Sugar
B. Food and O2
C. Root
D. Food
E. Branch
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