单选题 Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given ONE minute to check through your work once more.

Sea Ice

Sea ice surrounding Antarctica reached a new record high extent this year.

【正确答案】

【答案解析】[听力原文] Sea Ice Sea ice surrounding Antarctica reached a new record high extent this year. / It covers more of the southern oceans than it has / since scientists began a long-term satellite record / to map sea ice extent in the late 1970s. / However, the upward trend in the Antarctic / is only about a third of the rapid loss of sea ice in the Arctic Ocean. / The new Antarctic sea ice record reflects / the diversity and complexity of Earth's environments. / A senior scientist has referred to changes in sea ice coverage / as a result of global climate change.