資源簡介

Unit 6 Welcome to the unit 同步練習
基礎鞏固
一、詞匯運用
A. 根據句意及首字母提示完成單詞。
1. The m______ are very high and dangerous.
2. The forest is a beautiful and peaceful p______.
3. Oceans c______ a large area of the earth.
4. The d______ is very dry and there is little water.
5. The plain is very f______ and you can see far away.
B. 用所給單詞的適當形式填空。
1. Two thirds of the earth's surface ______ (be) covered by water.
2. The Yangtze River is one of the longest ______ (river) in the world.
3. Forests help to keep the air ______ (clean).
4. It's very cold in the desert at ______ (night).
5. These mountains are usually ______ (cover) with snow.
二、單項選擇
1. —______ do you know about deserts
—They are very dry and hot.
A. What B. How C. Where D. When
2. The river ______ from the mountains and runs into the sea.
A. rises B. raises C. gets D. goes
3. —Which landscape do you like best
—I like ______ best.
A. mountains B. deserts C. plains D. forests
4. Oceans cover about ______ of the earth's surface.
A. three fourths B. three quarter C. three quarters D. third four
5. —How long is the Yangtze River
—It's about 6,300 kilometres ______.
A. wide B. deep C. long D. high
能力提升
三、句型轉換
1. Forests help make the air clean. (改為同義句)
Forests help ______ the air ______.
2. Deserts are often hot during the day but cold at night. (對劃線部分提問)
______ ______ deserts often like during the day and at night
3. Rivers carry water from high ground down to lakes or the sea. (對劃線部分提問)
______ ______ rivers carry water
4. Mountains are high and they are usually covered with rocks and snow. (改為一般疑問句)
______ mountains high and ______ they usually covered with rocks and snow
5. Plains are open and flat. They cover over one third of the world's land area. (合并為一句)
_______________________________________________________________________
拓展延伸
四、閱讀理解
A
There are many different landscapes in the world. Mountains are one of them. They are very high and beautiful. Some mountains have snow on the top all year round.
Oceans are very large. They cover more than two-thirds of the earth's surface. The water in the oceans is salty. There are many kinds of fish and other living things in the oceans.
Deserts are very dry. There is little rain in deserts. It is very hot during the day and very cold at night.
Forests are full of trees and other plants. They help to make the air clean and fresh.
Rivers carry water from high places to low places. Some rivers are very long, like the Yangtze River and the Amazon River.
Plains are large areas of flat land. They are often used for farming.
根據短文內容，判斷下列句子正（T）誤（F）。
( ) 1. Mountains are not beautiful.
( ) 2. Oceans cover less than half of the earth's surface.
( ) 3. It is very cold in deserts at night.
( ) 4. Forests can make the air clean.
( ) 5. Plains are not good for farming.
B
Different landscapes have different features. Mountains are usually high and have rocks and snow. Some people like climbing mountains because it's a great challenge.
Oceans are huge and deep. There are many beautiful corals and fish in the oceans. But we should protect the oceans because there is a lot of pollution now.
Deserts are dry and hot. It's very difficult to live in deserts. But some plants and animals can still survive there.
Forests are home to many animals and plants. We should not cut down too many trees in the forests.
Rivers are important for us. We can get water from rivers. But some rivers are polluted, too.
Plains are wide and flat. Many people live on plains and grow crops there.
根據短文內容，回答下列問題。
1. Why do some people like climbing mountains
2. What should we do to protect the oceans
3. How can some plants and animals survive in deserts
4. Why shouldn't we cut down too many trees in the forests
5. What do many people do on plains
五、書面表達
Write a passage about your favourite landscape. You should introduce what it is like, why you like it and what you can do in it. (At least 60 words)
參考答案
一、
A. 1. mountains 2. place 3. cover 4. desert 5. far
B. 1. is 2. rivers 3. clean 4. night 5. covered
解析：
1. 根據“are very high and dangerous”可知此處是說山很高很危險，用名詞復數 mountains。
2. 森林是一個美麗和平的地方，用名詞 place。
3. 海洋覆蓋地球的大部分面積，主語是復數，動詞用原形 cover。
4. 根據“very dry and there is little water”可知是沙漠，用名詞 desert。
5. 平原很開闊，你能看得很遠，far 表示“遠的”。
6. 分數表達，分子用基數詞，分母用序數詞，當分子大于 1 時，分母用復數，two thirds 三分之二，主語是不可數名詞，謂語動詞用 is。
7. one of + 形容詞最高級 + 名詞復數，表示“最......之一”。
8. keep + 賓語 +形容詞，表示“使......保持......”，用 clean。
9. at night 固定短語，表示“在晚上”。
10. be covered with 固定短語，表示“被......覆蓋”。
二、
1. A 2. A 3. D 4. C 5. C
解析：
1. 根據回答可知是問關于沙漠知道什么，用 What。
2. rise 表示“升起，上升”，raise 表示“舉起，提高”，get 表示“得到”，go 表示“去”，此處是說河流從山上升起，用 rises。
3. 根據“Forests help to make the air clean and fresh.”可知森林有好處，所以最喜歡森林，用 forests。
4. 分數表達，three quarters 四分之三。
5. 回答是長度，所以問長度用 long。
三、
1. keep; clean
2. What are
3. Where do
4. Are; are
5. Plains are open and flat and they cover over one third of the world's land area.
解析：
1. help (to) do sth. = help do sth. 幫助做某事，make sth. + 形容詞 = keep sth. + 形容詞，表示“使某物......”。
2. 詢問天氣用 What's the weather like 或 How's the weather 此處對天氣提問，用 What are。
3. 對地點提問用 where，主語是 rivers，助動詞用 do。
4. 有 be 動詞的句子變一般疑問句把 be 動詞提前。
5. 原句就是兩個簡單句合并為一個并列句。
四、
A. 1. F 2. F 3. T 4. T 5. F
B. 1. Because it's a great challenge.
2. We should stop polluting the oceans.
3. They have special ways to store water and adapt to the hot and dry environment.
4. Because forests are home to many animals and plants.
5. They live and grow crops.
解析：
A. 1. 根據“Mountains are very high and beautiful.”可知山是美麗的，所以錯誤。
2. 根據“Oceans cover more than two-thirds of the earth's surface.”可知海洋覆蓋超過三分之二的地球表面，所以錯誤。
3. 根據“It is very hot during the day and very cold at night.”可知晚上很冷，所以正確。
4. 根據“They help to make the air clean and fresh.”可知森林能使空氣干凈，所以正確。
5. 根據“Plains are often used for farming.”可知平原適合耕種，所以錯誤。
B. 1. 根據“Some people like climbing mountains because it's a great challenge.”可知是因為是很大的挑戰。
2. 根據“But we should protect the oceans because there is a lot of pollution now.”可知應該停止污染海洋。
3. 文中未提及具體方式，可根據常識回答它們有特殊的儲水方式和適應環境的能力。
4. 根據“Forests are home to many animals and plants.”可知因為森林是很多動植物的家。
5. 根據“Many people live on plains and grow crops there.”可知他們居住和種莊稼。
五、
My Favourite Landscape
My favourite landscape is the forest. It is full of green trees and beautiful flowers. The air in the forest is very fresh. I like it because it makes me feel peaceful and relaxed. I can go hiking in the forest, breathe the fresh air and enjoy the beautiful scenery. Sometimes, I can also have a picnic with my friends there. It's really wonderful.

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