【題目】學習溶液的知識后,可以幫助我們正確認識溶液的組成及物質的溶解過程,下表是幾位同學對溶液的錯誤認識,請你用熟悉的實例來否定其觀點.
序號 | 錯誤觀點 | 否定實例 |
(1) | 溶液一定是無色的 | |
(2) | 均一、穩(wěn)定的液體一定是溶液 | |
(3) | 溶液中的溶劑一定是水 | |
(4) | 一種溶劑最多溶解一種溶質 | |
(5) | 兩種液體混合后充分振蕩,一定得到溶液 |
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【題目】—__________?
—I’d like the beef noodles.
A. How do you like it B. What do you like
C. What kind of noodles would you like D. Do you like something
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【題目】化工生產中為了加快反應速率,常常先把反應的固體配成溶液再兩兩混合。
(1)在農業(yè)上,為了合理使用農藥,常把不溶于水的固體或液體農藥配成 _________ 或 _________ ,用來噴灑受病蟲害的農作物。
(2)用X射線檢查腸胃病時,醫(yī)生會讓病人服用“鋇餐”來輔助檢查,“鋇餐”就是
硫酸鋇 (溶液、懸濁液、乳濁液)。
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【題目】C
People eat different things in different parts of the world.
In some countries, people eat rice every day. Sometimes they eat it two or three times a day for breakfast, lunch and supper. They eat rice with meat, fish and vegetables. Some people do not eat some kinds of meat. Muslims(穆斯林), for example, do not eat pork. Japanese eat lots of fish. They are near the sea. So it is easy for them to get fish.
In Western countries such as Britain, Australia and the USA, the most important food is bread and potatoes. People there can cook potatoes in many different ways.
Some people eat only fruit and vegetables. They do not eat meat or fish or anything from animals. They eat only food from plants(植物). Some people say that food from plants is better than meat. These people are called vegetarians.
【1】 What does the underlined word "vegetarians" mean in Chinese?
A. 肉食主義者 B. 生食主義者
C. 果食主義者 D. 素食主義者
【2】__________ do not eat pork.
A. Chinese B. Japanese
C. Muslims D. Americans
【3】 Why do Japanese eat lots of fish?
A. Because they like fish better than the other food.
B. Because it is easy for them to get fish.
C. Because fish can give them lots of calories.
D. Because they think eating fish can make them clever.
【4】 What is the most important food in Australia?
A. Fish. B. Bread. C. Vegetables. D. Fruit.
【5】Which one of the following sentences is true?
A. People in different countries eat different
B. If you only eat food from animals, you are a vegetarian.
C. Food from animals is better than food from plants.
D. People in some Western countries can only cook potatoes in one way.
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【題目】用括號里所給單詞的適當形式填空。
【1】 I am watching my dog __________ (play) with a ball now.
【2】 Children often enjoy __________ (play) computer games.
【3】 __________ (take) a bus from Sixth Avenue and go down Bridge Street.
【4】 Walk down New Street and turn left at the first __________ (cross).
【5】 Do you want __________ (buy) books?
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【題目】Ⅲ. 根據要求完成下列句子。
【1】They played volleyball yesterday afternoon. (改為一般疑問句)
________they ________ volleyball yesterday afternoon?
【2】I went to Central Park with my sister on Sunday. (改為否定句)
I ________ ________ to Central Park with my sister on Sunday.
【3】Lucy bought a watchphone ten minutes ago. (對畫線部分提問)
________ ________ Lucy ________ ten minutes ago?
【4】Jack is watching a football game on TV now.
(用last night替換now)
Jack ________ a football game on TV last night.
【5】My father went to Beijing yesterday. (對畫線部分提問)
________ ________ your father ________ yesterday?
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