从方框里选择合适的词，根据句子的意思，用其适当形式填空。
| possible refuse use worry her |
David was badly hurt in the accident, so we were very _______ about him.
Lily’s family can’t afford her education. So she always teaches _______.
They invited me to the party, but I had to________ because I was very busy.
It is bad for our eyes to watch TV too much . I think it’s ________ true.
Did she ________to have long hair when she was in Grade Seven?
仔细阅读下面五个句子，然后用下面方框中所给的单词或短语填空，使每个句子在结构、句义和逻辑上正确。（提示：选项中有一个是多余的。）
| keep out /expensive / lead /compare /take out /cheap |
Rose took us out to dinner at an _____restaurant, but the food was not good at all .
I need a new coat .This one doesn’t _____the cold
Working hard at Science can _____to a good job.
Wait before you buy that computer , Let’s ____prices at another store .
Her shoes were really ____ They only cost seven dollars。
根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。
Scientists would like to put a huge mirror in space above the earth. It might be sixty miles wide. It would be to catch the rays of the sun. it would direct the sun’s rays on the earth as a child might do to make sunlight
on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be in many ways. They could light up
by night. The warm rays could stop frosts(霜冻) which might come at night and hurt fruit and crops. They could melt（融化)
icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。
Scientists would like to put a huge mirror in space above the earth. It might be sixty miles wide. It would be to catch the rays of the sun. it would direct the sun’s rays on the earth as a child might do to make sunlight
on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be in many ways. They could light up
by night. The warm rays could stop frosts(霜冻) which might come at night and hurt fruit and crops. They could melt（融化)
icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
根据短文内容，用方框中所给单词的适当形式填空。每词限用一次。
Nowadays, we are paying more attention to our students’ safety in our country. But what do other countries do to keep students safe?
In Japan, earthquake drills (演练) are held once a month. They students safety tips during an earthquake. The training
students escape from earthquake-stricken areas. In Australia, most students take first-aid courses at school. They learn basic first-aid
in the class, such as, how to use the emergency (紧急) number for an ambulance (救护车) and what to do
someone is hurt. Most US school buildings have fire escapes. They are told to get to the fire escape through a fire exit door or a window. It is not a good idea to jump out of the window from
than two floors because they may get injured.
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