21. back % w4 |8 {, g+ J6 V( y! C4 J$ R He slipped and fell on his back. 他仰天滑到。" e& g3 D; C! D, y9 f4 h5 E
22. balance' L0 R Z7 g' H% U* A% d! ]9 X- t9 D
Don’t get excited; keep your balance. 不要冲动,保持冷静。5 d1 v6 K7 @ }9 Q2 d3 v g6 d
23. base ' }: S# \6 ?: {! } A naval base is located at Wei Hai. 威海有个海军基地。: z- \7 k' h# { X6 `
24. behavior& E# C' B$ s; E: ^- w6 l3 c
Tom won a prize for good behavior at school. 汤姆在学校里得到品行优良奖。 + @/ A4 f9 R: [# v3 D 25. belief% @+ z5 o4 g+ U2 y! G3 s
He has lost his belief in God. 他已不相信上帝。 $ y$ Y/ E' i4 M. ?0 R 26. birth 7 T) G3 u/ s! W6 F7 W+ V/ R. K& Z That baby weighed seven pounds at birth. 那婴儿生下来七磅重。- h& U9 \( w% H6 v
27. bit+ Z G: v4 i5 A
He ate every bit of his dinner. 他把他的晚餐吃得光光。 7 Y0 v9 Z! l1 D9 J B0 _* p6 T She’s feeling a bit tired. 她觉得有点疲倦。 3 z5 T$ Y. D7 t# d" r4 Y; R l He doesn’t care a bit. 他一点也不在乎。 5 w# u ^: G! i 28. bite. r# E8 g* l0 }% o0 S8 }
His face was covered with insect bites. 他满脸都是蚊虫咬伤。 " j# D5 \& b' z4 C& W) f! e I haven’t had a bite since morning. 我从早晨到现在一口东西都未吃过。, u/ x8 t3 }% v2 w' q8 h) A+ u
There’s a bite in the air this morning. 今天早晨有点寒风刺骨。0 d7 P1 p5 J! C* h1 O
29. blood3 P" r! d* K F/ Y) ] a
He gave his blood to help his sister. 他输血给他的妹妹以救她。2 O# x" z& t6 L. @1 P
His blood is up. 他发脾气了。 ; p2 t! _! A) }3 ]& P His blood ran cold. 他吓得魂不附体。 " r3 o! `( q2 I' E8 `( ?& U 30. blow 4 C! [" L" V+ ]- t! p Let’s go for a blow. 让我们到户外吹吹风。