任务型阅读

    This is Ken. He likes pandas best. ①Because he thinks pandas are smart. Pandas are from China. His friend Tom is different from(与……不同) him. Tom's favorite animals are giraffes because he thinks they are very cute and friendly.

    I like tigers. I think they are beautiful and energetic（充满活力的）. But now the tigers, especially（特别）the Manchurian tigers(东北虎), are in great danger. We must save them.

    We love animals. ②We think people should protect（保护）all the animals.

为了解决不孕症，1978年诞生了世界上第一例“试管婴儿”．为了证明高度分化的动物体细胞的细胞核仍然保持全能性，1997年第一只克隆动物“多利”问世．“试管婴儿”和克隆动物的生殖方式是（　　）