We all go through times when we feel we are not good enough. We might feel that way at work or in school or even as a parent. Here are some things to remember when you feel like that.

【小题1】 When I started my Ph.

【小题3】 It doesn’t exist. What’s perfect to me is not perfect to you. So if you think that there is some objective measurement of perfection and that the rest of the world is judging you on that，then you are wrong. Most people are too worried about their own lack of perfection to judge you.

【小题4】 Our sense of self-worth is based on our thoughts. We have been programmed for many years with thoughts about ourselves. Messages come from our parents，our peers，teachers，the media and our own labels. But guess what？They are only thoughts. Just because you think these thoughts，it doesn’t make them true.【小题5】

How to Create a Mind Map

Most of us think visually but write textually. 【小题1】It also makes the information we list more difficult to process，remember，and share.

【小题2】It combines the brain's visual nature with our tendency to write down words. We end up with a diagram that combines logic and order in a less structured manner. This promotes clearer thinking and better comprehension. 【小题3】

So，how do you create a mind map？The most basic method is to just use a pen and paper，or a marker and whiteboard. It begins with a central topic or idea，then flows outward. 【小题4】 The next level of topics is represented by branches extending from it.

There aren't really any rules for creating mind maps. While most flow outwardly from the central topic，some users prefer to build mind maps in one direction. 【小题5】This can make groups of ideas easier to identify（识别）and remember. It also makes a mind map more enjoyable to create and use.

Mind maps are extremely effective for taking notes, planning a project, brainstorming an idea, presenting information to others, and many other uses. Take out your pen and have a try.

   Several recent cases of violence（暴力）against students at U.S. colleges have made global headlines，arousing questions about the safety of America’s campuses. Yet government data show that the number of violent assaults（袭击）at colleges actually has decreased in recent years. And most schools have worked to increase safety through technology and student behavior.

It’s also important for students to take responsibility for their own safety. Being familiar with local neighborhoods and campus services is key. Personal-safety expert David Nance says the most important thing students can do is be attentive-which means not being distracted by smartphones or other devices.

The website for the group PEACE OUTSIDE CAMPUS，formed in response to the murder of a student from the University of Delaware in her off-campus apartment in 2005，lists additional measures students can take：

1. Don’t walk alone after dark or while drunk. Contact a friend to take you where you need to go.

2. When driving，keep your doors locked，and park in well-lit areas.

3. Don’t wear earphones or play music so loudly that you are unaware of your surroundings.

4. Trust your instinct（本能）and don’t worry about overreacting. You’re better safe than sorry.

5. Avoid entering elevators with strangers. When this is unavoidable，stand by the control panel and，if faced with a threatening way，push the emergency alarm and all the floor buttons. Don’t press the stop button.

6. Don’t hold the door open for a stranger attempting to enter the house，even if it seems rude. Ask them to identify themselves.

7. Post the police’s and fire departments’ numbers by every phone，and put them into your cellphone.

8. Label your emergency contacts as ICE（In Case of Emergency）in your cellphone so officials will know who to contact for important personal or medical information.

Nowadays，people often get 【小题1】 (stick) in traffic jams. In the last ten years, the number of cars on the roads in Britain 【小题2】 (rise) by 30% . Some types of cancer are related to traffic pollution and traffic is one of the major 【小题3】 (cause) of global warming and climate change. The average global temperature is about 0. 5 degrees centigrade 【小题4】 (high) than it was 100 years ago. We know that cars are bad for us, but we carry on 【小题5】 (use) our cars so much because we are addicted 【小题6】 them. Jenny Trowe of Greenpeace gives us some advice. First, use our legs. Regular exercise cuts the risk of heart disease by 50%! Second, use public transport. On average, about forty people travel in one bus,【小题7】 the same number occupy thirty-three cars. Third, sharing cars 【小题8】 (be) much cheaper and kinder to the environment. In 【小题9】 word, we can do whichever of these things 【小题10】 suit us. Don’t just sit around and complain!