听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~

Today a student in California asks the scientists.

Akhila: My name is Akhila and I go to Christensen Middle School in Livermore, California, and my question is, what are the [---1---] of cancer that make it so hard to cure?

EarthSky asked Kent Hunter, a cancer biologist at the National Cancer Institute.

Kent Hunter: The problem with cancer is that it's actually our own cells that have lost the ability to control their growth. And so the body can't or has a very difficult time distinguishing cancerous cells from normal cells. And by the same way, it's very difficult for us to design drugs that will [---2---] without causing major problems in the rest of the body.

These out-of-control cells divide and grow into cancerous [---3---]. A common treatment is chemotherapy, or drugs that target and kill cancer cells. But tumors can be a moving target.

Kent Hunter: Some tumors have the ability to [---4---] — they're changing their biology as they grow. So some of the chemotherapies will kill many of the tumor cells but not all of them. And the cells that are resistant will just regrow the tumor, so you basically end up not solving the problem.

Still, Hunter is optimistic about a cure for cancer. [---5---]

Our thanks today to the Monsanto Fund, bridging the gap between people and their resources.

I'm Joel Block for ES, a clear voice for science. We're at

【视听版科学小组荣誉出品】
properties destroy the cancer cells tumors constantly change He said scientists have made huge progress in the fight against it.
1. properties property还有这个意思: 特性,性能,属性[C] He is studying the medicinal properties of wild plants. 他正在研究野生植物的药物特性。 2. destroy cancer cells 摧毁癌细胞 3. tumors --->tumor肿瘤肿块 4. constantly change 经常性变化 5. He said scientists have made huge progress in the fight against it. 他说，科学家们已经在抵御和防治癌症上有了巨大的进步。 视听版科学小组荣誉出品】 以上仅供参考,欢迎大家参与讨论~