选修四英语练习册及答案

选修四英语练习册及答案
Unit 1: Exploring the World
Exercise 1: Vocabulary
Match the following words with their correct meanings:
1. Serendipity
A. A sudden loud noise
2. Acoustics
B. The science of sound
3. Resonance
C. An unexpected discovery
4. Clatter
D. The quality of a space's sound
5. Serene
E. Calm and peaceful
(Answers: 1-C, 2-D, 3-B, 4-A, 5-E)
Exercise 2: Grammar
Fill in the blanks with the correct form of the verb given in parentheses.
1. She ______ (be) a teacher for ten years before she decided to change her career.
2. The children ______ (play) in the park when it started to
rain.
3. By the time he arrived, the meeting ______ (finish) already.
4. ______ (not/make) any noise, please. The baby is sleeping.
5. The concert ______ (start) at 8 pm sharp.
(Answers: 1. had been, 2. were playing, 3. had finished, 4. Do not make, 5. starts)
Exercise 3: Reading Comprehension
Read the following passage and answer the questions:
"The world is full of wonders waiting to be discovered. From the depths of the ocean to the highest peaks of mountains, every corner of our planet holds a secret. Adventure seekers often embark on journeys to unveil these mysteries. They climb mountains not because it is easy, but because it is hard. The challenge and the reward of reaching the summit are what drive them."
1. What does the passage suggest about the world?
2. What motivates adventure seekers to explore?
3. How does the passage describe the difficulty of climbing mountains?
(Answers: 1. The world is full of wonders and secrets. 2. Adventure seekers are motivated by the challenge and the reward of reaching their goals. 3. The passage describes climbing mountains as hard, implying that the difficulty is part of the appeal.)
Unit 2: Technology and Innovation
Exercise 1: Vocabulary
Choose the correct word to complete the sentences:
1. The new smartphone has a high-definition _______.
A. Display
B. Exhibit
2. The _______ of the old factory has been a topic of debate.
A. Demolition
B. Decoration
3. The company is focusing on _______ new products.
A. Developing
B. Developing
4. The _______ of the new software was a success.
A. Launch
B. Crash
5. The _______ of the room was modern and sleek.
A. Design
B. Sign
(Answers: 1. A, 2. A, 3. A, 4. A, 5. A)
Exercise 2: Grammar
Rewrite the following sentences using the passive voice.
1. The team will design a new logo for the company.
2. Someone has already cleaned the room.
3. They will build a new bridge over the river.
4. The chef prepares delicious meals every day.
5. We must repair the broken machine immediately.
(Answers: 1. A new logo will be designed by the team for the company. 2. The room has already been cleaned by someone. 3.
A new bridge will be built over the river. 4. Delicious meals are prepared by the chef every day. 5. The broken machine must be repaired immediately.)
Exercise 3: Writing
Write a short paragraph (about 100 words) describing a technological innovation that has had a significant impact on your life. Include details about how it has changed your
daily routine.
(Note: The above content is a fictional exercise designed for educational purposes and does not represent an actual textbook or exercise册.)。