【正文】 短語作表語。高一下學(xué)期 ) Animals are friends of human beings. However, some animals will cause trouble or danger to us in some situations. For example, when they are hungry or when they feel themselves in danger. Do you know some dangerous animals on the land? Danger in the water What do you know about sharks? ? Most of them have a weak sense of ______ but a strong sense of ______. ? Sharks must keep __________ so that they will sink. ? What are Sharks? Sharks are fish that have been living around us since the dinosaurs. sight smell swimming Text one Read and Answer ? Do all the sharks attack human beings? ? Are many people attacked by sharks every year? ? Why is the number of shark attacks increasing? ? Read the text again and try to find out the topic sentence of each paragraph. (The topic sentences may appear at the beginning of the paragraph, or at the end.) Careful reading Paragraph 1: 30 out of 400 sharks may attack humans. Paragraph 2: There are three types of shark attacks. Paragraph 3: Advice on helping reduce the chances of being attacked. Paragraph 4: Three tips to h