Have you ever paid attention (注意)to the Air Quality Index (空气质量指标) or AQI reported in the newspaper? The AQI helps us understand what the air quality around us means to our health. The AQI uses colours, numbers and words to tell us about the air. Let’s see what these colours and numbers mean.

AQI colours

AQI numbers

Health words

What to do

Green

0~50

Good

Just enjoy the clean air

Yellow

51~100

Moderate (适中的)

Air Quality is fine for most people

Orange

101~150

Unhealthy for sensitive(敏感的) groups

Active children and adults and people with lung (肺) disease (疾病) should spend less time outdoors.

Red

151~200

Unhealthy

People with lung disease and active kids and adults shouldn’t spend too long time outdoors. Everybody else should try to spend less time outside.

Purple

201~300

Very unhealthy

People with lung disease and active kids and adults should not spend any time outdoors. Everybody else should try not to go outside.

1. If the weather report says today’s AQI is 39, we can __________.

A. enjoy the clean air

B. spend less time outside

C. try not to go outside

D. stay inside most time

2.If the Air Quality Index is _______, the air quality is good for most people.

A. orange B. red C. purple D. yellow

3. The _______ AQI numbers are, the _________ air quality is.

A. bigger; better B. bigger; nicer

C. smaller; better D. smaller; worse (糟糕)

4.We use ________ to tell about the quality of the air.

① colours ② words ③ weather ④ numbers

A. ①②③④ B. ①②③

C. ①②④ D. ②③④

5. Which of the following is TRUE?

A. If the AQI number is 140, the AQI colour will be red.

B. If the AQI colour is purple, the air is the best for people.

C. People with lung disease are very sensitive to the air.

D. The AQI can’t help people know the air quality.

Last summer, my family and I went on a trip to the China Dinosaur Park in Changzhou by bus. The one-hour trip seemed very long. We arrived at the park at about 9 a.m.

There were many fun places for us to choose from. We first went to the Crazy Firedrake(喷火龙)Drill. When I looked at the giant yellow machine, I wasn't afraid at all, But when I was really on it, I felt a little nervous. First, the machine took us to the highest point. We all screamed(尖叫) "Ah". 1 dared(敢)not look down. Then it turned around fast and moved very quickly at the same time. The wind was so strong that I couldn't open my eyes. I felt as if I would fall down. 1 couldn't stop screaming through the whole ride. It only moved for a few minutes, but it seemed to be many hours. When the game ended, I was too frightened to walk.

Later we took part in the game called “Crossing Jurassic(侏罗纪)”. After waiting for half an hour, we got into a boat. The boat went into a tall building. It was dark around us. There were many model dinosaurs on both sides. They looked like the real ones. From time to time. the model dinosaurs made some frightening shouts, which sounded terrible. The game ended with a sudden rush from a very high place into a big pool. What an exciting experience!

1.When did the writer get on the bus?

A. 9 a.m. B. About 8 a.m.

C. About 9 a.m. D. About 10 a.m.

2. When the writer looked at the giant yellow machine, he .

A. wasn't afraid B. was too frightened

C. was excited D. was nervous

3. What did the writer do when the machine took him to the highest point?

A. The writer cried. B. The writer screamed.

C. The writer looked down.D. The writer did nothing.

4. From the text, we can know that the game called "Crossing Jurassic" is a trip.

A. bus B. train C. coach D. boat

5.Which of the following is TRUE?

A. The yellow machine turned around fast and moved quickly at the same time.

B. The first game moved for a long time.

C. There were many real dinosaurs in the park.

D. The second game began with a sudden rush from a very high place into a big lake.

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