《2025年活动单导学课程高中英语选择性必修第一册译林版》

Activity 1: Read the lines.
Ⅰ. Choose the best answers to the following questions according to the text.
(D) 1. What can be found at the bottom of the ocean?
A. Exciting new life forms.
B. Shrimps and other organisms.
C. Incredible geological formations.
D. All the above.
(A) 2. What percentage of the world’s oceans have we explored?
A. About 20 per cent.
B. About 50 per cent.
C. About 80 per cent.
D. About 60 per cent.
(A) 3. What can be found at a depth of more than 1,000 metres in the ocean?
A. No light and temperatures drop just above freezing.
B. The smallest pressures.
C. Hunters with upward-pointing eyes.
D. Dolphins and shrimps.
(B) 4. Why do blind organisms in the deep ocean have to depend on other senses?
A. Because their eyesight is harmed by fishing people.
B. Because they want to obtain food and avoid being caught.
C. Because they need mates to increase the chances of reproduction.
D. Because they live in volcanically active areas.
(D) 5. Which of the following statements is TRUE according to the text?
A. All life on the Earth obtained its energy from the sun.
B. The Mariana Trench is located in the southern part of the Pacific Ocean.
C. Below 200 metres in the ocean, there is little sunlight and some unknown plant life.
D. The fish in the deep ocean are among the strangest creatures on the Earth.

答案： 1—5 DAABD

Ⅱ. Answer the following questions according to the text.
1. Where does most visible light exist in the ocean?
2. How do the blind organisms in the deep ocean obtain food?
3. Where can life forms obtain nutrients and energy?

答案：  1. Most visible light exists in the first 200 metres of the ocean. 2. They depend on other senses such as smell and their ability to detect slight changes in water pressure. 3. Life forms can obtain nutrients and energy from the sun and thermal sources.