未知题型 For thousands of years comets had been a mystery to S1.______man. They travel across the sky very fast and have abright 'tail' of burnt gas. The comet Tempel 1 has an S2.______orbit far outside the orbit of the furthest planet in oursolar system, Pluto. It has had been there for 4.6 billion years, S3.______133 million kilometres from Earth. Last weeka little American spacecraft crash into Tempel 1. S4.______The spacecraft had a camera and it took a photographof the comet every minute after it finally crashed into S5.______its surface. The space mission to Tempel 1 cost $335million and was called Deep Impact. Spacecraft was S6.______travelling at 37,000 kilometres per hour when it hit the cometand the crash completely destroying the spacecraft. But before S7.______it hit the comet, the spacecraft took some amazingly photographs. S8.______The last one was a close-up picture the spacecraft spent S9.______just 3 seconds time before it crashed into the comet. S10.______【S1】

未知题型 ● Look at the charts below. They show the profits of a company.● Which chart does each sentence (11-15) describe?● For each sentence mark one letter (A-H) on your Answer Sheet.After a sharp fall in 2000, company profits recovered slightly the following year.

未知题型 Write about the following topic:Many schools have severe problems with student behaviour.What are the causes of this problem and what can be done to solve them?Give reasons for your answer and include any relevant examples from your own knowledge or experience.Write at least 250 words.