很多學(xué)生覺得英語難學(xué)，但事實(shí)上，英語和其他學(xué)科區(qū)別不大，知識點(diǎn)都完全出在書中。只要肯下工夫，一定會把英語學(xué)好，至少英語成績不會被別人落下太多。通過今年的初三期末考試可以看出來，學(xué)生們存在的最主要的問題還是對教材不夠熟悉。比如，今年的完形填空題出自教科書中的原文，但是5個(gè)填空部分很多學(xué)生都沒有完全答對。其實(shí)，現(xiàn)在考試的趨勢越來越回歸教材，所以學(xué)生們一定要對教材非常熟悉。英語考試中的作文雖然不像語文作文那樣占分比例很大，但這仍是一個(gè)重點(diǎn)。此次考試，學(xué)生們的作文情況也不是很理想。原因是學(xué)生們平時(shí)不愿意動筆。其實(shí)，只要對教材熟悉，寫作的問題就不大。教材中的每個(gè)模塊的第二、三單元都是一個(gè)主題，這個(gè)主題會告知寫作內(nèi)容。中考時(shí)的寫作范圍也不會脫離這些主題，肯定會是書中提到過的，所以，學(xué)生們要根據(jù)這些主題主動練習(xí)寫作。
寒假期間的復(fù)習(xí)重點(diǎn)可根據(jù)個(gè)人情況而定，但以下兩方面不得忽視：1、完形填空和閱讀每天要做四五篇。英語考試中完形填空和閱讀所占分?jǐn)?shù)非常大，這是一個(gè)容易得分的部分。所以，學(xué)生們在假期每天都要保證閱讀數(shù)量。英語語感很重要，如果長時(shí)間不做閱讀，再次復(fù)習(xí)時(shí)會費(fèi)很多力氣。2、初一到初三教材“過”一遍。復(fù)習(xí)英語的最好方式就是熟讀教材，因?yàn)橛⒄Z教材中幾乎涵蓋了所有知識點(diǎn)。寒假期間，初一到初三年級的全部英語單詞要復(fù)習(xí)一遍，課文要通讀一遍，要保證英譯漢和漢譯英都沒有問題，這樣會給開學(xué)后進(jìn)入總復(fù)習(xí)提供很多幫助。
B
When the Audet family turns on the lights at Blue Farm, they are using electricity that comes from cows-cow manure (糞肥), to be specific.
Cows produce a lot of wastes. One cow can create 30 gallons of wastes each day. Now imagine the output of over 1,000 cows at Blue Farm. That's really a big amount.
When farmers clean their barns, they put the wastes in a big heap, and spread some of them on their fields for fertilizer(肥料). But now places like Blue Spruce Farm have a new way of using cow wastes. They use them to produce electricity.
Here's how it works: A big machine moves back and forth cleaning the barn floor. "The cows aren't bothered," says Marie Audet. "They are animals of habit; they get used to it, and just lift one foot and then another to let it go by."
The machine pushes the manure into a big 600-gallon tank like a small swimming pool. The tank is called a digester (化糞池) because what happens there is just like what happens inside a cow: Bacteria(細(xì)菌) get to work and continue to digest the manure.
Methane gas (甲烷、沼氣)in the atmosphere is known as a "greenhouse" gas because it keeps heat just like a greenhouse does, causing our planet to warm up. That's an environmental concern. But the digester has a good result. Its gas is kept and used to power electric generators (發(fā)電機(jī)).
At Blue Farm, the generators make enough electricity to power 400 homes. The Audet family sells the extra electricity they can't use themselves.
51. We learn from the text that the Audet family is using cow wastes to ______.
A. make electricity B. produce fertilizer C. build their farm D. feed the cows
52. How are the cow wastes collected into the digester at Blue Farm?
A. Marie Audet does the work B. The job is done by machine
C. The cows lift the cow wastes D. Bacteria get to work on them
53. According to the passage, which of the following is changed into electricity?
A. The power of moving water. B. The heat of burning coal.
C. The power of sunlight. D. The heat of the methane gas
54. The new way of using cow wastes at Blue Farm might be best descr ibed as ______.
A. reducing B. saving C. recycling D. changing
55. What is the main purpose for writing the passage?
A. To introduce a new way of making electricity B. To explain how a new energy works better
C. To show a new rebuilding plan for a big farm D. To explain the reasons for green house effect
答案：ABDCA
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