四六级翻译部分涉及语法点及句型 虚拟语气1. If 条件句, 对应主句.例如: If you knew the truth, you wouldnt/couldnt/shouldnt/mightnt keep it a secret to the public. If everything were ready, the company would invest a big sum of money in low-carbon technology development.例如: If you had taken my advice,/Had you taken my advice, you wouldnt/couldnt/shouldnt/mightnt have made such a mistake.例如: If the factory cut down on its production expenses, the sales would/could/should/might b