| ourselves，gravity，without，nervous，diary，if，weak |
（1）Many people feel
nervous
nervous
when they speak in public（公共場(chǎng)合）.
（2）We will not go to the park
if
if
it rains tomorrow.
（3）Without
gravity
gravity
，no one will be able to stay on the ground.
（4）We can only live for about a week
without
without
food.
（5）The little boy is very
weak
weak
.He cannot lift the light box up.
（6）What do you usually write in your
diary
diary
？
（7）We enjoyed
ourselves
ourselves
at the dancing party last night.
