填空题I ______ (打算订阅)one daily newspaper and one weekly magazine.

填空题According to the author, getting rid of possessions and losing them through a natural disaster are vastly ______.

填空题People resumed their interest in natural gas as a fuel as a result of __________________ of the late 1960s and early 1970s.

填空题Only after he had failed his oral test ______ (他才逐渐意识到联系的必要性).

填空题According to Paragraph 1, we learned that we blot out the sounds we don't want to hear because______.

填空题If you know what you want to study, research reputations of academic departments by ______.

填空题Only when he told me______(我才意识到他处于进退两难的境地)．

填空题To be successful, a businessman __________________(做事应该有十足的自信心).

填空题It can be easier to change our diet a lot than to change it a little.

填空题People have dreamed of traveling in space for thousands of years. But it was not until 1957 that it became a{{U}} (36) {{/U}} On October 4,1957 Russia{{U}} (37) {{/U}}the first man-made satellite into space, It was called Sputnik I. On April 12,1961 the Russian{{U}} (38) {{/U}}Yuri Gagarin became the first man to orbit the Earth. The first spacewoman in the world was Valentina Tereshkova. She made 48{{U}} (39) {{/U}}in 1963 in her Vostok 6. On July 20,1969 the American{{U}} (40) {{/U}}Neil Armstrong became the first man to set foot on the Moon. In 1986 the Russian space station Mir was launched. Scientists are already at work on the{{U}} (41) {{/U}}Space Station, a "city of space". It will be the size of a football field and will{{U}} (42) {{/U}}over 200 tons. A team of 10 --15 spacemen will{{U}} (43) {{/U}}be able to live and work at the International Space Station in 2005. The next step will be the first moon base. 20 or 30 scientists will live inside a dome with an artificial atmosphere.{{U}} (44) {{/U}} It also means that they will be able to grow food. {{U}} (45) {{/U}}Scientists say that the planet once had water on its surface. If that water is now frozen underground, humans will be able to use it someday. By the end of the 21st century, scientists hope,{{U}} (46) {{/U}}

填空题It is proved that the uncontrolled activity of free radicals caused many cancers.

填空题China National Petroleum Co．(CNPC) is ready to return to Iraq to develop an oil field，____________________(恢复执行在萨达姆侯赛因时期所签署的协议)．

填空题Europe and Japan need more labor force because the population growth in these countries has been very low.