《2025年领智优选浙江期末复习卷九年级英语全一册人教版》

D
At the Jinzhong National Agricultural High-Tech Industry Demonstration Zone in Shanxi Province,some truly “out-of-this-world” work is going on. Some upland rice seeds( 旱稻种子) that experienced “space breeding( 育种)” have grown up there.
The upland rice seeds were taken to the Tiangong Space Station by the Shenzhou-16 members in May 2023. There,they experienced space radiation( 辐射) and microgravity( 微重力), which caused genetic mutations( 基因突变).
After spending more than 150 days in space, the seeds returned to Earth on Oct. 31. Scientists studied the mutations. They found that some of the mutations gave the seeds qualities that farmers prefer, such as higher production, faster growth without illness.
“For space breeding, the space environment holds great value,which cannot be copied on Earth,” Professor Dong Qi from Shanxi Agricultural University said. “Traditional breeding usually takes six to ten years, but space breeding could cut down the time by half,” he added. He explained that these space seeds may look the same on the outside but go through important changes on the inside.
Space breeding,however,is not a simple task. Not all seeds mutate in space, so careful choice is the key. With the little space on the spacecraft,only the chosen seeds are sent. After space travel,the seeds still need to be tested for things like pro-duction,quality,and market value. In the end,only a few of the seeds pass the test to become true “space seeds”.
The high-tech area in Jinzhong has long been working with China’s space program. It’s located in Shanxi, which has dry weather. This is the perfect environment for growing and sprea-ding new kinds of upland rice.
The journey of Chinese crop seeds into space began in 1987. Since then,over 3,000 space breeding experiments have gone on,resulting in more than 240 main grain( 谷物) kinds and over 400 new types of vegetables,fruits,trees and flowers.
(D)27. How long did the upland rice seeds stay in space?
A. At least one year.
B. For only a week.
C. Less than two months.
D. Around five months.
(B)28. What can we infer from what Professor Dong Qi said?
A. The traditional breeding is the same as the space breeding.
B. The space breeding might take about four to five years.
C. The space seeds look different both outside and in-side.
D. The environment on the Earth is better than that in space.
(B)29. How can the seeds become the true “space seeds”?
①The seeds are tested.
②The seeds are chosen.
③The seeds are sent to the space.
④The seeds return from the space.
A. ①②③④ B. ②③④①
C. ②①④③ D. ④①③②
(C)30. What’s the purpose of the last paragraph?
A. To introduce the background.
B. To lead out a saying.
C. To give a conclusion.
D. To begin a new topic.

答案： 27—30 DBBC