1、Unit 4 Astronomy：the science of the stars.语法填空After the “Big Bang”， the earth was just a cloud of dust. Then the dust settled into a solid globe. The earth became _1_ (violence). Then it exploded loudly. In time, the water vapour was produced, _2_ (make) the earths atmosphere cool down. Water then a
2、ppeared on the surface. Many millions of years later, the small plants began developing in the water. They multiplied and filled the oceans and seas _3_ oxygen. And then green plants came into _4_. Later the plants grew into forests, and reptiles appeared on the land. They produced young generally b
3、y _5_(lay) eggs._6_ dinosaurs disappeared, mammals became more important. Small clever animals with hands and feet appeared all over the earth. _7_ time went by, they covered the earth and they are putting too much carbon dioxide into the atmosphere, _8_ prevents heat _9_ escaping from the earth int
4、o space. In the end the earth may become _10_ hot to live on.答案 1violent2.making3.with4.being5.laying6When7.As8.which9.from10.too.单词拼写1These members include the rich and the poor, the young and the old, who represent many races, r_ and political beliefs.2According to the t_ of relativity, nothing ca
5、n travel faster than light.3We know that matter is made up of a_.4From space the earth looks like a huge watercovered g_.5The talk between the two countries went on in a friendly a_.6The ancient building _(存在) in the city hundreds of years ago.7With so many problems arising, the _ (制度) should be imp
6、roved.8The boy likes studying the universe and he wants to choose _(天文学) as his major.9The police say armed robbery is the fastestrising _(暴力的) crime.10As is well known, fresh air is _(基本的)to good health.答案1religious2.theory3.atoms4.globe5.atmosphere6existed7.system8.astronomy9.violent10fundamental.
7、单句语法填空1People cant afford expensive things _ the prices of daily goods going up.2Thats the best way _(stop) people getting into dangerous areas.3The top leaders of G20 discussed the global problems _ a friendly atmosphere.4Please remember _ wins you respect is not your background and appearance but
8、your knowledge and virtues.5As the busiest woman in the neighbourhood, she made _ her duty to look after all other peoples affairs.6Going on a trip into space must be quite _ exciting experience.7We cant continue to pretend that the problem of homelessness doesnt exist _ this city.8The student was _ (puzzle) about what to do in the future.9They had a _(violence) quarrel and John stormed out.10Its extremely _(unlike) to reach an agreement between us.答案 1with2.to stop3.in4.what5.it6.an7in8.puzzled9.violent10.unlikely
