① Solar energy is energy from the sun. ( )

② People who study the stars are called astronomers. ( )

③ There are four parts, or components, in a simple stereo system. ( )

④ Diet also refers to the kinds of food one eats regularly. For example, if someone eats meat and fish but no fruits and vegetables, his diet is not well balanced. ( )

⑤ Some people do not eat meat or fish at all, they are called vegetarians. ( )

2. 同义线索(Synonym clues) 单词的词义可靠同义线索来判断。

例：Some animals hibernate in winter. They have winter sleep under the mud, or under the snow. ( )

① Sir Isaac Newton discovered the law of gravity. This rule tells us why things fall to the ground.

( ) ( )

② In the United States businessmen are skilled at handling strong disagreements in meeting. The Japanese, on the other hand, are adroit at avoiding such confrontations.( ) ( )

③ The teenagers was ordered to make full restitution to the owner of the damaged car. He swiftly made full payment for the damage to the auto he had hit. ( )

④ The cost of a college education is skyrocketing. Since tuition costs are rapidly rising, many students must take jobs to help meet expenses. ( )

⑤ Moving closer to school can both ameliorate your commuting problem and improve your social life. ( )

3. 反义线索(Antonym clues) 通过反义线索可悟出词义。

常用的词有：but, although, however, despite, nevertheless, rather, yet, while, on the other hand, in contrast with/to, instead of等等。

例： Everyone has strong points as well as drawbacks. （ ）

① Although the patient is usually morose, she seemed happy today. ( )

② Some students were inadvertently late for class while a few were purposely late. ( )

③ The major points of your plan are clear to me, but the details are still hazy. ( )

④ Even though he was usually a careful driver, he was arrested after yesterday's party for reckless driving. ( )

⑤ That woman confuses me; Sometimes she is so warm and friendly, and other times, she is very standoffish. ( )

4. 推理线索(Inference Clues)

例： The soldiers were ordered to fire to the enemy. In this sentence, fire means .

They lit a fire using only flint(火石) and wood. In this sentence, fire means .

A. to let someone go from a job B. to shoot C. red-hot flames