《2025年练习部分八年级英语上册沪教版54制》

3Listen to a conversation between Peter and Jane. 听彼得和简的一段对话。
3-1 Listen and complete each statement about water with a number. 听对话,补全关于水的陈述。每空格填一个数字。
(1) Water expands (膨胀) by about 9% when it becomes ice.
(2) Water makes up $\frac{2}{3}$ of the Earth's weight.
(3) Water leaves your stomach about 5 minutes after you drink it.
(4) Almost $\frac{1}{3}$ of human bones is water.
3-2 Listen again and answer the questions. 再听一遍对话,回答问题。
(1) What are the two speakers doing? They are playing a game/talking about water.
(2) How many correct guesses has Jane had? Three.
(3) In what form is the water found on Mars? Frozen./Ice.

答案： 3-1
(1)9%
(2) $\frac{2}{3}$
(3)5
(4)$\frac{1}{3}$
3-2
(1) They are playing a game/talking about water.
(2) Three.
(3) Frozen./Ice.

4Listen to a report and fill in each blank with a number. 听报道,完成填空。每空格填一个数字。
(1) In England (英格兰), tap water passed 99.97% of daily tests in 2023.
(2) In blind (盲的) tests, only 10% of people can tell the difference between bottled water and tap water.
(3) Making one litre of bottled water needs up to 4 litres of water. And making one plastic bottle needs 17 to 35 litres.
(4) A half-litre plastic bottle produces 82.8 grams of CO₂, like driving a car 0.3 kilometres.
(5) Less than 10% of plastic bottles are recycled. The rest pollute the environment for hundreds of years.

答案：
(1)99.97%
(2)10%
(3)4; 17; 35
(4)82.8; 0.3
(5)10%