Ⅰ.Match the word with its meaning.

　　1．producer　　 A．related to business and the buying and selling of goods and services

　　2．undertake B．a person or thing that produces

　　3．commercial C．honest and frank，easy to understand or do

　　4．forbid D．to contract to or commit oneself to (something) or (to do something)

　　5．straightforward E．order (sb.) not to do sth.

　　6．accumulate F．gradually get or gather together an increasing number or quantity of (sth.)

　　7．object G．an important new discovery in something you are studying

　　8．breakthrough H．to say that you disagree with

　　答案：1～5　BDAEC　6～8　FHG

　　Ⅱ. Write down the meaning of phrases in each sentence.

　　1．All my years of training as an explorer have finally paid off！得到回报，得到好结果

　　2．Large quantities of money have been collected to be sent to the refugees in the flooded area.大量的

　　3．I'm in favour of equal pay for equal work.支持，赞成

　　4．Don't let yourself be cast down by a small failure in the exam.沮丧，不愉快

　　5．Internet has a great impact on our society, life, way of thinking and values.对......有很大作用/影响

　　6．Like many skills, guitar playing also comes with different techniques which differ from one person to another.与......不同

　　Ⅰ.How much do you know about clone? What is clone? And what are natural clone and man­made clone?

　　参考答案：Clone is a way of making an exact copy of another animal or plant.

　　Natural clone is one that occurs from the "parent" in a natural form of cloning without human help.

　　Man­made clone is one produced through human intervention (介入)．

　　Ⅱ.Look at the pictures and fill in the blanks.

　　　1.Dolly was the first cloned mammal created by a Scottish scientist and his group in 1996.

　　2.The mule in the picture is the world's first cloned mule. It was born on 4 May 2003.