Ⅰ.单句语法填空
1．Try to put the young man at ease by being friendly and informal.
2．When the summer crop is ripening，the autumn crop has to be sowed(sow).
3．We need to seek a solution to each specific problem.
4．Scientists take inspiration from nature to make their breakthrough.
5．Most of the newcomers are employed(employ)in developing the technology into a product.
6．We may reexamine our goals or our methods for attaining(attain)our goals.
7．I find your theory is unreasonable and it must be rejected(reject).
8．I didn't feel at ease the first time I came here.
9．His reaction was to withdraw(withdraw)，to bury himself in work.
