The development of business and entertainment has led to increasing numbers of problems for our eyes. Eye strain caused by the excessive watching of TV, computer monitors, books, and other devices has become a severe problem. This is a concern among children who are becoming more and more addicted to video and computer games. They spend long hours staring at the screen with few breaks. Other things can also cause poor eyesight. Pollution can damage the eyes, as well as a poor diet. This is especially true for the poor in society as they may not be able to afford the food necessary to provide everything that their bodies need. There is also an increase of people born with bad eyesight others develop poor vision at an early age. This can be caused by the misuse of a person’s eyesight. This misuse can come in the form of being consumed with schoolwork and study until their vision begins to blur. They may not take care of their eyes with such things as eye drops. Many may not even get glasses. It is natural that a person with poor eyesight should wear glasses or contact lens. However, many people decline to use these since they feel that it may take away their good looks. This is really surprising as a person’s eyes are very precious. If they are lost, it could seriously damage the livelihood or standard of living of that person.
That you will win the medal seems unlikely. 你想获得奖牌看起来是不可能的。
That prices will go up is certain. 物价要上涨是肯定的。
2．if, whether 引导的主语从句
Whether she is coming or not doesn’t matter too much.
3．what, whatever 引导的主语从句
What you need is more practice. 你所需要的是更多的训练。
What I want to know is this. 我想知道的就是这件事。
1.That he will come to the party are big surprise to me.
2.What I want are just good job.
3.That they are going to win are no doubt at all.
4.Whether she is beautiful or not are not the point.
5.What you need are patience.
1. are → is a
2. are just good job →is just a good job
3. 第二个 are →is
4. are →is
5. are →is