英语听力—环球英语 1368 Save The Butterflies

Voice 1 Welcome to Spotlight. Im Joshua Leo. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 I was watching a butterfly the other

发表于:2018-12-19 / 阅读(113) / 评论(0)

环球英语 Spotlight

【英语时差8,16】想赚钱？来投资乳草

That'true. monarch butterflies lay their eggs on milkweed plants.The caterpillars feed on milkweed, from which they extract substances called cardenolides, a type of chemical that can cause heart arrhythmia. This toxin doesnt affect the caterpillars

发表于:2018-12-27 / 阅读(99) / 评论(0)

英语时差8，16

Young Students Build a Station for Monarch Butterflies

Students at P.B. Smith Elementary Schools ecology club are learning about the life and migration of monarch butterflies. They learn in the classroom about the butterflys need for certain plants. They learn scientific words for the stages of a butterf

发表于:2019-01-03 / 阅读(436) / 评论(0)

2018年VOA慢速英语(七)月

世界奇观：美国加州惊现“火瀑布”

These amazing images were taken at Horsetail Falls in Yosemite National Park, California by wildlife photographer Penny Adams. For just a few days each year the sun sets over the falls creating a vivid red amber glow - leading it to be re-named Yosem

发表于:2019-02-07 / 阅读(99) / 评论(0)

英语口语

英语听力—环球英语 1225 Friend or Enemy?

Voice 1 Welcome to Spotlight. Im Adam Navis. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Human life is full of friends and en

发表于:2019-02-14 / 阅读(130) / 评论(0)

环球英语 Spotlight

科学美国人60秒 SSS 相生相克

Planting Milkweed for Monarchs? Make Sure it's Native Monarch butterflies depend on milkweed. They lay their eggs on milkweed, and their caterpillars eat only the leaves of the plant. No milkweed means no monarchs. So the best way to help declining m

发表于:2019-02-14 / 阅读(119) / 评论(0)

2018年科学美国人4月

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carboxyterminal repeating heptamer

centralized clock interface