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精英家教網(wǎng) > 練習(xí)冊解析答案 > 2025年怎樣學(xué)好初中英語八年級英語上冊滬教版五四制 > 第8頁解析答案
2025年怎樣學(xué)好初中英語八年級英語上冊滬教版五四制

2025年怎樣學(xué)好初中英語八年級英語上冊滬教版五四制

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B Answer the questions. 回答問題。
1. What is the first thing that happens at the sewage treatment plant?
________
2. Why are chemicals added to the water?
________
3. Where does the treated wastewater go?
________
答案：1. The first step is to remove large objects from the water.
解析：根據(jù)第二段“The first step of the sewage treatment process is to remove large objects from the water.”可知，污水處理廠的第一步是從水中去除大的物體。
2. To kill the harmful bugs you can't see.
解析：根據(jù)第三段“Finally, some chemicals are added to kill the harmful bugs you can't see.”可知，添加化學(xué)物質(zhì)是為了殺死看不見的有害細(xì)菌。
3. It is sent back into the water supply.
解析：根據(jù)第四段“The water is clean now and ready to be released and sent back into the water supply.”可知，處理后的廢水被送回供水系統(tǒng)。
C Put the sentences in the correct order. 將句子按正確的順序排列。
A. The water is now clean and ready to go back into the water supply.
B. Large objects are removed from the water.
C. Wastewater goes down the drain and reaches a sewage treatment plant.
D. Air is pumped into the water.
E. The wastewater is put into large tanks.
F. Some chemicals are added to the water.
1. ________ 2. ________ 3. ________ 4. ________ 5. ________ 6. ________
答案：1. C
2. B
3. E
4. D
5. F
6. A
解析：首先廢水從下水道排出到達(dá)污水處理廠（C），然后第一步去除大物體（B），接著被送入大水箱（E），之后向水中泵入空氣（D），再添加化學(xué)物質(zhì)（F），最后水變干凈回到供水系統(tǒng)（A），所以順序是C→B→E→D→F→A。
A1 Complete the sentences with when, as, before, after or until. 用when, as, before, after或until完成句子。
1.
Until
the bell rings, students must stay in the classroom.
2.
As
time passed, the city grew more modern and beautiful.
3.
After
years of hard work, his dream of becoming a pilot came true.
4. My brother was playing games
when
someone knocked at the door.
5. Don't open the door
until
the car stops completely.
6. Tom waited patiently
until
the doctor called his name.
7. In the English class, Mrs White explained the lesson
as
she wrote on the blackboard.
答案：1. Until
解析：句意為“直到鈴聲響，學(xué)生們必須待在教室里”，until表示“直到……為止”，符合語境。
2. As
解析：“As time passed”表示“隨著時間的流逝”，as有“隨著”的意思，引導(dǎo)時間狀語從句，符合句意。
3. After
解析：“After years of hard work”表示“經(jīng)過多年的努力后”，after表示“在……之后”，符合語境“他成為飛行員的夢想實現(xiàn)了”。
4. when
解析：句意為“我哥哥正在玩游戲，這時有人敲門”，when表示“這時，當(dāng)……時”，引導(dǎo)時間狀語從句，符合情境。
5. until
解析：“Don't open the door until the car stops completely.”表示“直到車完全停下才能開門”，until表示“直到……才”，符合邏輯。
6. until
解析：“Tom waited patiently until the doctor called his name.”意為“湯姆耐心等待，直到醫(yī)生叫他的名字”，until表示“直到……為止”，符合語境。
7. as
解析：“Mrs White explained the lesson as she wrote on the blackboard.”表示“懷特夫人一邊在黑板上寫字，一邊解釋課文”，as表示“一邊……一邊……”，強調(diào)動作同時進(jìn)行，符合句意。