单词:umbelliferous plants
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1. A) Riding a horse. B) Shooting a movie. C) Playing a game. D) Taking a photo. 2. A) She'11 type the letter for the man. B) She'll teach the man to operate the computer. C) She doesn't think his sister is a good typist. D) She thinks the man should
1. A) Riding a horse. B) Shooting a movie. C) Playing a game. D) Taking a photo. 2. A) She'11 type the letter for the man. B) She'll teach the man to operate the computer. C) She doesn't think his sister is a good typist. D) She thinks the man should
Lesson Seven TEXT A Mandela's Garden Nelson Mandela Pre-class Work I Read the text once for the main idea. Do not refer to the notes dictionaries or the glossary yet. In early 1977, the authorities an
SECTION 1: LISTENING TEST (30 minutes) Part A: Spot Dictation Directions: In this part of the test, you will hear a passage and read the same passage with blanks in it. Fill in each of the blanks wi
When you consider all life on Earth, billions of human beings are a relatively small number when compared to trees, earthworms or even viruses. But humans really know how to use what little power we have, a new study found. The study is said to be th
The Secret Life of Roots Plant roots are important to life on earth. Roots take in water and nutrients that the plant needs to live and grow. They also help secure plants in dirt to prevent erosion - the breakdown of soil by natural forces. Roots are
If you imagine the 4,500-million-odd years of Earth's history compressed into a normal earthly day, 请你想像一下。把地球的45亿年历史压缩成普通的一天。 then life begins very early, about 4 A.M., with the rise of the first simpl
Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Anne Muir. 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 You have got to go in spring. I
Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t
> 58 菌类植物产生于几十亿年前 DATE=8/24/01 TITLE=ENVIRONMENT REPORT - Early Plant Study BYLINE=Cynthia Kirk (Start at 1’00” )This is Bill White with the VOA Special English ENVIRONM
Cell 细胞 Every living thing has at least one cell. 每个生物至少有一个细胞。 Then, what is a cell? 那么,什么是细胞呢? Every cell works differently, but most cells work to maintain life. 每个细胞的功能都不相同,但大
Soil 土地 Soil is necessary for people's life. 土地是人类生活的必需品。 Plants can grow from soil. 植物依靠土地生长。 Soil gives plants a lot of nutrition. 土地为植物提供大量的营养物质。 Plants can make flowers a
Passage Three 17. A) Whether it can be detected and checked. B) Whether it will lead to widespread food shortage. C) Whether global warming will speed up in the future. D) Whether it will affect their own lives. 18. A) Many species have moved further
Today some of Sprigg's original Ediacaran specimens, along with many of the other fifteen hundred specimens that have been found throughout the Flinders Range since that time, 今天,斯普里格的埃迪亚卡拉标本原件,与自那以后在整个
Nearly half the species on the planet are failing to cope with global warming the world has already experienced, according to an alarming new study that suggests the sixth mass extinction of animal life in the Earth's history could take place in as l
I am vertical/But I would rather be horizontal, wrote Sylvia Plath, meditating on the consequences of a treelike existence. A team of researchers from the Vienna University of Technology recently announced another perspective on arboreal repose. Usin
It is a natural human impulse to think of evolution as a long chain of improvements, 人们自然会不由自主地想到,进化是个不断完善的漫长过程, of a never-ending advance toward largeness and complexityin a word, toward us. 一个
It has been suggested that the cyanobacteria at Shark Bay are perhaps the slowest-evolving organisms on Earth, and certainly now they are among the rarest. 据认为,沙克湾里的叠层石也许是地球上进化最慢的生物,也肯定是现在
Coal-fired Power Plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit the bill, and it fueled t
Voice 1 Thank you for joining us for todays Spotlight. Im Joshua Leo. Voice 2 And Im Ruby Jones. 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 Have you