《2025年情景导学高中英语选择性必修第二册外研版》

4 But although the virus caused the rabbit population to decrease from 130,000 to around 10,000, it also meant less food for the cats. 然而,虽然病毒使得兔子的数量从 130,000 降到约 10,000 只,但这也意味着猫的食物变少了。
读句入境
The statistic shows that the price of wheat has decreased by 15%.
这项统计数据显示小麦的价格已降低了 15%。
In consequence, the number of teachers at this school decreased to 700.
因此,这所学校的教师人数减少到了 700 人。
This species of bird is decreasing in numbers every year because of habitat loss.
由于栖息地的丧失,这种鸟的数量在逐年减少。
There has been a decrease of nearly 6% in the number of visitors to the museum.
参观这座博物馆的人数减少了近 6%。
归纳小结
①decrease v. (使)变小,(使)减少 n. 减少;减少的量
②decrease from... to... 从……减少到……
③decrease by 减少了
④decrease to 减少到
⑤decrease in 在……方面减少
微语法填空
The population of this area has decreased from 10 million to 9 million in the last ten years. That is to say, the population has decreased by 10%. Experts say the population is expected to decrease (decrease) to 6 million by 2035.

答案： ［归纳小结］①decrease ②from ③by ④to ⑤in ［微语法填空］to; by; to decrease

Ⅰ. 根据汉语提示写单词
1. The hotel cafeteria provides tasty food for every appetite (胃口) — you can even eat while watching the fish swim by.
2. Oil pollution could, in turn, damage the fragile ecology (生态) of the coral reefs.
3. Loose on the island, the rabbits began digging holes, which caused some land to collapse (倒坍).
4. The writer was inspired by the memorable incident (事件) that happened on the train during his journey to Europe.
5. It was his horse, according to the old man, that saved him from the trap (陷阱).
6. Habitat (栖息地) loss is one of the greatest threats to wild animals.
7. If we use the new recycling method, a substantial (大量的) number of trees will be saved.
8. One of the simplest ways to multiply (使倍增) happiness is to share it with others.
9. China and some other countries have taken steps to facilitate cooperation in cultural heritage conservation (保护).
10. In the past years the number of emperor penguins has decreased (减少) dramatically.
11. The study found that unless there is intervention (干预), the world could lose at least one language per month.
12. After the failure of the electricity supplies, the city was in chaos (大混乱) altogether.

答案： 1. appetite 2. ecology 3. collapse 4. incident 5. trap 6. Habitat 7. substantial 8. multiply 9. conservation 10. decreased 11. intervention 12. chaos