)has been produced domestically and imported in the United States for more than four decades．

　　Today，the leading importes of LNG are Japan，Korea，France and Spain．

　　23．Paragraph 2_________．

　　24．Paragraph 3________．

　　25．Paragraph 4_________.

　　26．Paragraph 5________．

　　A．Popularity and use of natural gas

　　B．Natural gas reserves and supply

　　C．Natural gas prices

　　D．Clean fuel of choice

　　E．Disadvantages of natural gas

　　F．Natural gas consumption

　　27．Natural gas is stored deep________．

　　28．Natural gas is recognized as the most economical energy source_________．

　　29．When manufacturing many products，people commonly use natural gas____________．

　　30．It is estimated that by 2025 that natural gas demand in the United States will increase_________．

　　A．over the past 50 years

　　B．beneath the earth surface

　　C．by more than 50 percent

　　D．for more than four decades

　　E．as a raw material

　　F．for home energy needs

　　第4部分：阅读理解(第3l～45题，每题3分，共45分)

　　下面有3篇短文，每篇短文后有5道题。请根据短文内容,为每题确定1个最佳选项。

　　第一篇

　　How the First Stars in the Universe Came into Existence

　　How the first stars formed from this dust and gas has been a burning question for years，but a state-of-the-art computer simulation now offers the most detailed picture yet of how these first stars in the universe came into existence，researchers say．

　　The composition of the early universe was quite different from that of today，and the physics that governed the early universe were also somewhat simpler．Dr．Naoki Yoshida and colleagues in Japan and the U．S．incorporated these conditions of the early universe，sometimes referred to as the "cosmic dark ages，"to simulate the formation of an astronomical object that would eventually shine its light into this darkness．

　　The result is a detailed description of the formation of a