1 . Complete the sentences using the correct form of the words and phrases below.

contain   electrical impulse   organ   locate   nerve   be responsible for   atom   relate to

1. The brain is the most important ________ in the human body.
2. It________ over one hundred billion ________ cells.
3. The nerve cells in our brain are connected by ________
4. There are more possible connections in one brain than there are ________ in the universe.
5. Different parts of our brain are ________ different parts of our body.
6. There are different areas in the brain that ________ different functions.
7. Scientists have ________ different areas of the brain.

2 . 这条耀眼的地毯以惊人的强度把太阳光驱散了，这就是每一个液体原子都产生震动的原因。（which引导的定语从句）（汉译英）

3 . 选词填空

acclaim, atom, craft, harsh, prosper, shun

1. Despite the pandemic in China, businesses across the country are ________ with economic situation becoming ________.
2. Infected by Aids, she lives alone,   ________ by society.
3. The carrier is powered by ________ energy released by splitting ________ .
4. Many kinds of traditional Chinese ________ industries are preserved by many ________ with their skilled ________.
5. Yuan Longping is ________as Father of Hybrid Rice.
6. ________climates or conditions are very difficult to people, animals, and plants to live in.