四、词汇运用

阅读下面短文，然后根据括号内所给汉语提示写出单词的正确形式(每空一词)。
Do you want to see real dinosaurs? Just think different dinosaurs eat, run and play around you. Do you want to travel to space? Do you want to fly (1) (穿过) space in a rocket? With virtual reality(虚拟现实技术)，students can experience them easily and they (2) (甚至) don't need to leave their classroom.
Many students are starting to use VR at Borough School. Katelyn was 10 years old when she (3) (尝试) VR. She likes to “go” to the moon (4) (更好地) than just looking at the pictures of it. “It is so cool and so lifelike(逼真的)，” she says.
VR is not new. It (5) (出现) about 50 years ago. But it is (6) (改进) all the time. And it is becoming more and more popular. A lot of users say it feels like jumping into a (7) (录像) game with VR.
(8) (然而)，there are a few problems about VR. The first is money. It is so expensive that many schools don't have (9) (充足的) money to buy it. What's more, some parents worry that VR may be bad for young children's (10) (健康).
What do you think of VR? If you want to have a lifelike experience, just choose VR!

【短文大意】本文讲述了有关虚拟现实技术的历史以及存在的一些问题。
1. through 【解析】through意为“穿透，穿过”，而across意为“横穿”，即从物体表面经过，故填through。
2. even 【解析】由中文提示可知，应填even。
3. tried 【解析】由上下文可知，此句使用一般过去时，故填tried。
4. better 【解析】由句中“than”可知，此处须用形容词的比较级，故填better。
5. appeared 【解析】由“about 50 years ago”可知，此句使用一般过去时，故填appeared。
6. improving 【解析】句中all the time意为“一直”。句意：但是虚拟现实技术一直在进步。由句意可知，此句使用现在进行时，故填improving。
7. video 【解析】由中文提示可知，应填video。
8. However 【解析】由中文提示可知，应填However。
9. enough 【解析】由中文提示可知，应填enough。
10. health 【解析】由文中“children's”可知，此处须用名词，故填health。