走进英语说明文阅读课件(共21张PPT)

(共21张PPT)
走进英语说明文阅读
What do you know about expository text
（说明文）
Emma Watson is a British actress. She is famous for her role as Hesrmione Granger in the Harry Potter films and has won many acting awards.
Although Emma has been very busy filming, she has continued to study hard. She left school with excellent grades and went to an American university to study. As well as acting, Emma sings and dances. She is also a great hockey player and skier.
What is the passage about
A person
Mother’s Day is on the second Sunday in May. An American woman called Anna Jarvis started it in 1907. Anna’s mother died in May, 1905. Anna was very sad, so she came up with the idea of Mother’s Day. She wanted a day for families to come together and celebrate.
Now, many people in Western countries often travel to visit their mother in May. But in the UK, people celebrate Mother’s Day in March. If you ever feel unsure about the date of Mother’s Day, remember one thing. Every day should be Mother’s Day!
What is the passage about
A special day
Limbo dancing is first from West Africa but today it is an important part of celebrations in the Caribbean. Young people have to dance under a pole (杆). The pole is often on fire and the dancer mustn’t touch it! After a successful “limbo”, they put the pole lower and do it again. Some dancers can dance under a pole just twenty centimeters off the ground!
What is the passage about
A kind of dance
A
C
B
Summary
Expository text is a kind of text which introduces
or describes certain things or ideas to readers.
说明文是一种客观说明事物或阐明事理的一种文体。
What
It’s often written in a clear, logical and objective way.
How
Why
To tell / to inform / to introduce / to explain ...
1. What should you do before shopping
A. Make a list.
B. Bring your bag.
C. Stay hungry.
D. Get much money.
2. How many ideas about shopping does the writer give
A. Two. B. Three.
C. Four. D. Five.
3. What’s the best title for the passage
A. A healthy life
B. Time for shopping
C. Be a smart shopper
D. Save your money
What
Why
How
（structure）
Skmimming
1. What should you do before shopping accordig to the passage
A. Make a list.
B. Bring your bag.
C. Stay hungry.
D. Get much money.
2. How many ideas about shopping does the writer give
A. Two. B. Three.
C. Four. D. Five.
3. What’s the best title for the passage
A. A healthy life
B. Time for shopping
C. Be a smart shopper
D. Save your money
Keep shopping smart
Idea ①
Get yourself a list
Get in and out
in 30 minutes
Never shop hungry
Idea ②
Idea ③
When you read an expository text, skim the text and think about three questions.
A mind map may help you understand expository texts better.
What
Why
How
Summary
① The natural world is colorful with humans, plants and animals showing different colors.
② Human skin can be many different colors and it changes with the sun, our feelings or our health for example. This is because of pigments （色素）, which reflect light and make what the eye sees as colors. So, when we feel excited or angry, our heart can send more blood to the face and the pigments in the skin become red. This is why we have the expression that someone “ sees red ” when they are angry.
③ Plants also have pigments. Color is important for them to live on. The bright colors of flowers catch the attention of insects（昆虫）, which then carry their pollen（花粉）from one flower to another. Bees can see colors we cannot, and they follow these to the inside of the flower. Without bees visiting flowers in this way, many plants would die out.
④ Animals also use color for their own need. They protect themselves with different colors so as not to be seen by predators (捕食者). The snowshoe hare for example, a type of wild rabbit, changes color with seasons for this reason. During summer it is a brown color, and in winter it is white so that it can hide in the snow. However , some animals use color as a warning to make predators stay away. Bright colors such as yellow and red are often used in this way. Nature, however, is very clever , and predators also use colors to attract（吸引）the animals they feed on.
⑤ So, we can see that there may be many different reasons and uses for colors in the natural world. Some uses of color in nature remain unknown, but one thing is for sure, color not only makes our planet beautiful but it is also necessary for our planet to live on. ——2021 嘉兴中考
What
Why
How
1. ______ is the cause that makes human skin change color.
A. feelings B. pigments C. blood D. sunshine
2. Plants can use ______ to attract insects.
A. leaves B. pollen C. fruits D. color
3. The underlined word “predator” in Paragraph 4 refers to animals which ______.
A. hide in secret places
B. kill other animals for food
C. change color with the sun
D. protect themselves from danger
4. What’s the main purpose of the passage
A. To describe animals’ ways of life.
B. To encourage us to study color in nature.
C. To introduce the uses of colors for life on earth.
D. To explain the importance of protecting the earth.
Colors in nature
Para 2
colors of
humans
Para 3
Para 4
colors of
plants
colors of
animals
Reasons and uses
Scanning
1. ______ is the cause that makes human skin change color.
A. feelings B. pigments
C. blood D. sunshine
② Human skin can be many different colors and it changes with the sun, our feelings or our health for example. This is because of pigments （色素）, which reflect light and make what the eye sees as colors. So, when we feel excited or angry, our heart can send more blood to the face and the pigments in the skin become red. This is why we have the expression that someone “ sees red ” when they are angry.
the reason, that’s why , because ...
2. Plants can use _______ to attract insects.
A. leaves B. pollen
C. fruits D. color
③ Plants also have pigments. Color is important for them to live on. The bright colors of flowers catch the attention of insects（昆虫）, which then carry their pollen（花粉)from one flower to another. Bees can see colors we cannot, and they follow these to the inside of the flower. Without bees visiting flowers in this way, many plants would die out.
attract
3. The underlined word “predator” in Paragraph 4 refers to animals which ______.
A. hide in secret places
B. kill other animals for food
C. change color with the sun
D. protect themselves from danger
④ Animals also use color for their own need. They protect themselves with different colors so as not to be seen by predators. The snowshoe hare for example, a type of wild rabbit, changes color with seasons for this reason. During summer it is a brown color, and in winter it is white so that it can hide in the snow. However, some animals use color as a warning to make predators stay away. Bright colors such as yellow and red are often used in this way. Nature, however, is very clever, and predators also use colors to attract（吸引）the animals they feed on.
Skim the text and think about :
A mind map may be helpful.
What
Why
How
Summary
Scan for specific information.
①Most people use their mouths to talk, but do you know some people use their hands to speak Some people who cannot hear use their hands to communicate messages to others. This is called sign language. These people make shapes with their finger, movements with their hands , as well as different faces in order to talk to other people.
②One way people speak with their hands is by making shapes for letters with their fingers. For example, if you make an “OK” sign with your thumb and finger, that is the shape for the letter “f” in American sign language. Each letter has a hand shape. This way people can spell words using their hands. For example, if you want to spell “fun”, you need to make three shapes. First you make the shape for the letter “f”, then the shape for the letter “u”, and then the shape for the letter “n”.
③______________If you move your hand from your nose to your chin (下巴), you can say “mother”in American sign language. Of course, you have to use the correct hand shape, too. That shape is like holding your hand open with all five fingers showing. If you move your hand from the top of your head to your chin, you can say “father”, Again, you have to use the same hand shape that you used for “mother”.
④Finally, people can change their faces to communicate in a sign language . For example, if you want to ask a question, you need to make your eyebrows (眉毛) go up. You also need to move your head forward a little. If you want to say “I do not know”. You need to make your eyes smaller and make your eyebrows go down.
What
How
Why
Sign language
Paragraph 2
Paragraph 3
Paragraph 4
What
How
Make shapes for letters with their fingers
Change faces to communicate
Move hands to communicate
A. People also need to learn sign language B. People also move their hands to talk in a sign language
C. People also make hand shapes to talk D. People also make different faces to send messages
Homework
Must do:
1.Think about the main idea (what), structure (how) and the purpose (why).
2. Draw a mind map of the passage.
Choose to do
3. Set 3 multiple-choice questions about the details.
Thank you!