实用综合教程B1U5

liquid
adj. n. n.
液体的 液体 金属
metal
at the center of
spin top movement length v. n. n. n.
The seven continents are
Asia Africa Europe South America North America
Oceania the Atlantic Ocean the Antarctic Ocean the Indian Ocean Antarctica
The five oceans are
到„为止，远到；尽可能地
飞行员，领航员 视野；观点 包括，包含 小块，片
Unit 5 Our Earth
Words and Expressions Text Study Comprehension Vocabulary Building
farmland
n.
农田
astronaut
speed outline describe huge
Unit 5 Our Earth
Background Information
Discussion
Question 1: Can you name the earth’s seven continents and five oceans and point them out on a map? Hints
Unit 5 Our Earth Warm-up Listening and Speaking Text A Grammar Tips Text B Comprehensive Exercises Practical Reading and Writing
Unit 5 Our Earth
Background Information
Unit 5 Our Earth
Background Information
Discussion
which marked the beginning of the world’s celebration of Earth Day. On the twentieth anniversary of that event, April 22, 1990, more than 200 million people in 141 countries participated in Earth Day celebrations. The activities were approved by the United Nations and since then April 22 of each year is celebrated as International Earth Day.
Unit 5 Our Earth
Listening
Speaking
2. Do you think China’s environment has become better or worse? Give examples to support your view. 3. Is there anything you think you can do to protect our environment? Hints Things to do to prevent pollution: (1) garbage recycling (2) waste water treatment (3) soil conservation (4) driving less (5) atmospheric monitoring
mankind
n.
人类
living
firstly
adj.
adv.
活的，有生命的
首先，第一
warmth
surface layer crust form
n.
n. n. n. v. n.
温暖
表面，外表 层 地壳；外壳 形成，构成 形状，形态；表格
Unit 5 Our Earth
Words and Expressions Text Study Comprehension Vocabulary Building
the Pacific Ocean the Arctic Ocean
Unit 5 Our Earth
Background Information
Discussion
Question 2: Can you name the nine planets in the solar system and position them? Hints
Listening
Speaking
I. Listening A. Choose the best response to each sentence you hear.
1. A. Yes, all right.
B. Class is over now. C. How time flies!
D. Yes, let’s hurry.
Unit 5 Our Earth
Listening
Speaking
B. Fill in the blanks of the following passage according to what you have just heard. To pollute means to make things unfit or unclean for use. Man has been polluting the earth from the time he first made fire, washed his clothes in the river and threw his waste on the (1) ______ ground . When land was used up or water became dirty, men moved on to another place. At first the problem was not so serious because there was (2) _______ plenty of clean air, land and water, and there were fewer people. All the dirty things could be absorbed by
Unit 5 Our Earth
Listening
Speaking
4. A. Three years ago. B. For three years. C. Maybe in three years. D. No, only three years. 5. A. I’ve got no idea. B. I’ve been there. C. It’s very far from here. D. It’s very small, but nice.
Discussion
Earth Day Plans for the first Earth Day were announced in San Francisco at the UNESCO Conference on the Environment held in November 1969. Former US Senator Gaylord Nelson suggested that March 21, the first day of spring, be established as Earth Day for a nationwide teach-in on the environment. On April 22, 1970, an estimated 20 million people, 2,000 colleges and universities, 10,000 grammar and high schools and 1,000 communities took part in the first nationwide demonstrations on environmental problems in the USA,
Unit 5 Our Earth
Listening
Speaking
II. Speaking Discuss with your partner the following questions based on the information from the above passage you have just heard. 1. What does pollution mean according to the passage? Why has it become serious today? Hints Pollution means to make things unfit or unclean for use. It usually includes water pollution, air pollution, soil pollution, sound pollution, light pollution, etc.
n.
vi. n. n. vt. adj.
宇航员
迅速前进 速度 轮廓，外形 形容，描述 巨大的，极大的 表面被„覆盖着 包围，围绕
be covered with surround vt.
Unit 5 Our Earth
Words and Expressions Text Study Comprehension Vocabulary Building
Unit 5 Our Earth
Unit 5
Unit 5 Our Earth Objectives In this unit, you will — learn some basic facts about our earth; — enlarge your vocabulary for describing the earth and the environment; — know something about Earth Day; — study a list of differeБайду номын сангаасt prepositions; — read and write slogans.
Unit 5 Our Earth
Words and Expressions Text Study Comprehension Vocabulary Building
soil builder sailor
n. n. n.
土壤，土地 建造者，施工人员 海员，水手
as far as
pilot view include patch n. n. vt. n.
Unit 5 Our Earth
Listening
Speaking
nature. But this is no longer (3) ____ true . The growth of population and the development of industry have changed that. Nowadays, pollution is beginning to threaten our (4) _____ health and life.
They are
Mercury(水星) Venus(金星) Earth(地球) Mars(火星) Jupiter(木星) Saturn(土星) Uranus(天王星) Neptune(海王星)
Pluto(冥王星)in the order of their closeness to the
sun.
Unit 5 Our Earth
Unit 5 Our Earth
Listening
Speaking
2. A. What a pleasure. B. I’m very pleased. C. It’s my pleasure. D. Pleased to meet you. 3. A. Yes, you may. B. No, please don’t. C. Peter Jones. D. You’d better not.