The Recycling Rate for Tires
　　In Japan, the recycling rate for tires was already 93 percent in 1993, Discarded tires are recycled here in three ways. The most familiar involves simply using them "as is"--in their original shape for such things as playground equipment in schools and public parks. They are even used in some "bullet train" tracks as shock absorbers.
　　Another popular use of discarded tires involves extracting rubber for processing into new products. "You can recycle rubber 100 percent, and as often as you wish. Rubber used in making tires is especially strong, so the rubber derived from scrapped(報(bào)廢的)tires can be used in various ways," says Minoru Muraoka, president of Muraoka Rubber Co. who is bent on(致力于)recycling tires. In addition to being reused in tires, recycled rubber is used to make sheet rubber. Also, powdered rubber is used to make roof tries and slabs for sidewalks, thus contributing to improving the looks of our cities.
　　The third use for scrapped tires is as fuel. Half of all scrapped tires are currently used for this purpose at various installations requiring large amounts of heat energy.
　　Furthermore, Takeji Kobata, a researcher in Hokkaido has developed an epoch-making technology for making activated carbon (活性炭) by burning used tires. Activated carbon made from tires is of better quality and has greater absorptive power than other varieties already on the market. With the Kobata method, 1. 5 kilograms of activated carbon can be obtained from a single 7-kilogram automobile tire. Kobata has already obtained manufacturing patent (專利) in the United States, Canada and Taiwan, and has also opened the patented process to the public in Britain, Germany, France and Brazil
　　31. The passage is mainly about______
　　A. using tires in their initial shape
　　B. how to reuse discarded tires
　　C. how to recycle activated, carbon
　　D. the recycling rate of tires in Japan
　　32. According to the passage, which of the following statements is NOT true? A. Rubber can be recycled to produce new products.
　　B. In 1993 most of used tires in Japan could be recycled.
　　C. 100 percent of used tires can be used for recycling in Japan
　　D.Activated carbon made from tires has good quality,
　　33. Rubber derived from used tires can be widely used because ______
　　A. it can be processed into new products
　　B. it can be　recycled 100 percent
　　C. it contributes to improving the appearance of our cities
　　D. such rubber is especially strong
　　34. According to the Kobata method,______of activated carbon can be obtained
　　from used tires.
　　A. 1.5 kilograms
　　B. 7 kilograms
　　C. more than one fifth
　　D. 93 percent
　　35． The epoch making technology refers to______
　　A. turning out manufacturing-patent
　　B. burning used tires to make activated carbon
　　C. opening the patented process to the public
　　D. obtainingl.5 kilograms of activated carbon　　
　　參考譯文
　　輪胎回收率
　　1993年，日本的輪胎回收率已達(dá)93％。在這里，廢棄的輪胎以三種方式被回收再利用。最常見(jiàn)的一種回收利用方式是按照它們的原樣——它們本來(lái)的形狀——將其重新用作學(xué)校及公園的操場(chǎng)娛樂(lè)設(shè)施，有時(shí)這些輪胎還被用在一些“新干線’’列車的鐵軌上以減少震動(dòng)。
　　廢棄輪胎的另一種常見(jiàn)的回收再利用方式是從它們中間提取橡膠加工成新產(chǎn)品。一心致力于輪胎回收再利用研究的Muraoka橡膠公司總裁Minoru Muraoka說(shuō)：“你可以百分之百地、無(wú)數(shù)次地回收橡膠。用來(lái)做輪胎的橡膠韌性很強(qiáng)÷所以從廢棄輪胎中提取出來(lái)的橡膠回收再利用的用途也就很多。”除了將提取的橡膠重新用來(lái)制造輪胎外，它還被用于制造薄片狀橡膠，另外，橡膠碎料還被用來(lái)制造房瓦及人行道邊板，因此也能美化我們的城市。 廢棄輪胎的第三種用途是作燃料�，F(xiàn)在，有一半的廢棄輪胎被用作燃料，為那些需要大量熱能的建筑設(shè)施服務(wù)。
　　此外，北海道的一位研究員Takeji Kobata開(kāi)發(fā)了一種劃時(shí)代的技術(shù)，他通過(guò)燃燒廢棄輪胎制造出活性炭。這種從輪胎中制造出來(lái)的活性炭與市場(chǎng)中現(xiàn)有的其他活性炭相比，質(zhì)量更好，吸收力更強(qiáng)。用Kobata開(kāi)發(fā)的這種方法，一個(gè)重7千克的汽車輪胎可以制出1．5千克的活性炭。Kobata已在美國(guó)、加拿大和臺(tái)灣獲取了生產(chǎn)專利，并向英國(guó)、法國(guó)、德國(guó)和巴西的公眾開(kāi)放已經(jīng)獲得專利權(quán)的加工過(guò)程．