1 . 根据语境，选择下框中的单词或短语，必要时用正确的形式填空。框中有两个为多余的单词或短语。

feel at home             motivate             strength                  expose                  consist of     regardless of            subscribe to          consume                 adapt to               cooperate

1. By the time he decided to come back to China, he found that he ________ the life in the USA.
2. John’s ________ for learning is to fulfill his dream to be a scientist one day.
3. I believe studying abroad can help you________ your abilities in cross-cultural communication .
4. There is convincing evidence of a link between ________ to sun and skin cancer.
5. In America, a typical lunch may________ a burger or sandwich, a vegetable or fruit salad, a dessert and a cup of cola or coffee.
6. All ethnic groups, ________ their population, have the same legal status and enjoy various rights according to the law.
7. After this event, John no longer ________ the view that the disabled are unsuitable to be teachers.
8. Nowadays, people prefer household appliance with higher efficiency and less energy ________.

2 . 根据语境选择词语，并用其恰当形式填空，每个词仅使用一次。

shape, reward, course, function, channel, highlight, absorb

1. There is no denying that every individual will experience happiness and sorrow in the ________ of their long life.
2. No one can ignore the great influence social media has in ________ the public opinions.
3. Teachers use different methods to help students ________ what they learn.
4. It is of significance to have a balanced diet; otherwise, our body cannot ________ normally.
5. Art and music are great ________ for people to express their ideas and emotions.

3 . 根据句意，选择单词或短语并以其适当形式填空。

involve              thanks to              available break down              overcome              comfort

1. As long as you don’t lose heart, you’ll find a way to ________ the difficulty.
2. ________ the work of John Snow, we now know how to prevent cholera.
3. A smile can help us get through difficult situations and ________ barriers.
4. A good teacher is able to ________ her students when they are upset.
5. Mr. Leach is on holiday and is not ________ for the moment.
6. It is beneficial for teenagers to ________ themselves in social activities after school.