題目列表(包括答案和解析)
The flowers in my room every day, or they’ll die.
A. must water B. must be watered C. should water D. can be watered
As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind.
Let’s think about how this works. As wave energy passes through the water, the energy makes particles （粒子） of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn’t move forward. That’s because the wave energy just moves the water which is under the basketball.
So why can you see a wave knock you down on the shore？When a wave moves toward the shore, the bottom of the wave slows down because it meets the ocean floor. But the top, which is called crest(浪峰), keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.
1.______ is really moving forward when you look at the wave.
A．Water B．The basketball C．Water and wave energy D．Wave energy
2.Match the sentences with the pictures and the right answer.
(1) The basketball moves up to the top with the wave.
(2) The basketball continues and leaves the basketball behind.
(3) When the wind blows, a wave comes from behind the basketball.
A．a—(2) b—(1) c—(3) B．a—(3) b—(1) c—(2)
C．a—(1) b—(3) c—(2) D．a—(3) b—(2) c—(1)
3.Which of the following is NOT true according to the passage?
A．Wave energy comes from the water.
B．Large waves carry plenty of energy.
C．Wave action makes shorelines change all the time.
D．The bottom of the wave is easy to slow down.
4.The underlined word “it” ( Paragraph 3) refers to “________”.
A．particles of water B．the shore C．the wind D．the bottom of the wave
5.The main idea of this passage is ______.
A．what makes particles of water move B．how a basketball moves on the ocean
C．how wave energy causes wave action D．why a wave can knock you down
--- I called you yesterday but you weren’t at home.
--- I ______ flowers in my garden at that time.
A．water B．am watering C．watered D．was watering
Many parents today worry about their children's diets. Then what is a healthy diet for children? Miss Jones from Happy Children Hospital gives the following advice:
◆ Children shouldn't eat food with too much salt, because it can cause high blood pressure(高血壓).
◆ Children should eat food with less fat, oil and sugar. They should not eat too much junk food.
◆ Fruit and vegetables are rich in vitamins. Children need to eat fruit and vegetables often.
◆ Water is important to everyone. Children need to drink enough water every day.
◆ Children need to eat breakfast every day. It is good for their bodies and minds.
1.Miss Jones is possible a _______________.
A．teacher B．doctor
C．shop assistant D．a waitress
2. What does the underlined word " junk food " mean in Chinese?
A．綠色食品 B．垃圾食品 C．天然食品 D．營養食品
3. According to Miss Jones, children should drink__________ every day.
A．enough juice B．enough water
C．enough coffee D．enough milk
4. Which kind of food is rich in vitamins?
A．water B．junk food
C．sugar D．fruit and vegetables
5. What is the best title of the passage?
A．Bad Habits B．Junk Food
C．Advice on a Healthy Diet D．An Unhealthy Lifestyle
The flowers ________ every day, or they will die.
A. must water B. can be watered
C. should water D.must be watered
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